<!DOCTYPE html>

<meta charset="UTF-8">
<title>CSS padding 练习题</title>

所有方向内边距为10px

顶部和底部内边距30px，左右内边距20px

左边内边距5px，其他方向内边距15px

只有顶部内边距为25px

Please write HTML and CSS code to create a page that includes four <div> elements. Set each <div> as follows:
1. The padding in all directions of the first <div> is 10px.
2. The left and right padding of the second <div> is 20px, and the top and bottom padding is 30px.
3. The left padding of the third <div> is 5px, and the padding in other directions is 15px.
4. For the fourth <div>, only set the top padding as 25px and do not set the padding in other directions.

CSS writing requirements:
1. Use the class name of the <div> as the CSS selector, for example: .padding-all, .padding-vertical-horizontal, .padding-except-left, .padding-top-only.
2. The CSS code should be written inside the <style> tag in the <head> part of the HTML document.
3. Use two spaces for code indentation.
4. Keep a space between the selector and the left curly brace, keep a space after the attribute and colon, and end with a semicolon after the attribute value.
5. Each attribute declaration should occupy one line, and a blank line should be left between each CSS rule set to improve readability.

The answer should return the combined HTML and CSS code.
Please wrap the answering code with markdown code block format, e.g.
```html
[code]
```

import { describe, expect, it, beforeAll, afterAll } from '@jest/globals';
import puppeteer from 'puppeteer';

describe('不同内边距的 <div> 元素测试', () => {
  let browser;
  let page;

  beforeAll(async () => {
    browser = await puppeteer.launch({args: ['--no-sandbox']});
    page = await browser.newPage();
    await page.setContent(`#<INSERT>`);
  });

  afterAll(async () => {
    await browser.close();
  });

  it('所有方向内边距为10px', async () => {
    const padding = await page.$eval('.padding-all', el => getComputedStyle(el).padding);
    expect(padding).toBe('10px');
  });

  it('顶部和底部内边距30px，左右内边距20px', async () => {
    const paddingTop = await page.$eval('.padding-vertical-horizontal', el => getComputedStyle(el).paddingTop);
    const paddingRight = await page.$eval('.padding-vertical-horizontal', el => getComputedStyle(el).paddingRight);
    expect(paddingTop).toBe('30px');
    expect(paddingRight).toBe('20px');
  });

  it('左边内边距5px，其他方向内边距15px', async () => {
    const paddingLeft = await page.$eval('.padding-except-left', el => getComputedStyle(el).paddingLeft);
    const paddingRight = await page.$eval('.padding-except-left', el => getComputedStyle(el).paddingTop);  // 示例中假设顶部内边距与其他方向相同
    expect(paddingLeft).toBe('5px');
    expect(paddingRight).toBe('15px');
  });

  it('只有顶部内边距为25px', async () => {
    const paddingTop = await page.$eval('.padding-top-only', el => getComputedStyle(el).paddingTop);
    expect(paddingTop).toBe('25px');
  });
});


<!DOCTYPE html>

    <meta charset="UTF-8">
    <title>Text Decoration Exercise</title>

This is the Main Title

        Welcome to the exercise page. Please hover over
        this link to see the effect.

        This is a quotation block that should have wavy underlines.

As a front-end developer, you need to apply different decorative styles to the text elements on a page. The specific requirements are as follows:
1. The main title (<h1>) needs to remove the original underline to ensure the simplicity of the title text.
2. The links (<a>) in the paragraph (<p>) are underlined by default, but when the mouse hovers over them, the underline disappears, indicating a change in interactive state.
3. All the text within the block quotes (<blockquote>) needs to have a wavy underline to highlight the text.

CSS Writing Requirements
1. CSS should be written in-line within the <style> tags in the <head> of the HTML file.
2. Use the element name as the CSS class name to define selectors, such as h1.main-title, a.paragraph-link, blockquote.quotation.
3. There should be a space before the braces of each CSS rule.
4. There should be proper indentation between selectors and property declarations (e.g., using two spaces).
5. There should be a space between the colon after the property name and the property value.
6. Each property declaration should end with a semicolon.
7. For hover states, directly add the :hover pseudo-class after the selector without adding a space.

The HTML and CSS codes should be returned together in the answer.
Please wrap the answering code with markdown code block format, e.g.
```html
[code]
```

Question: Write a piece of python code to achieve the following function.
Find the maximum perfect square number that is less than the nth Fibonacci number.
The function's name is max_square_number, and the input is an integer n.

Answer:
```python
def max_square_number(n):
    if n <= 2:
        return 0  # For the first two numbers in the Fibonacci sequence, no complete square numbers can be used.

    fibs = [0, 1]  # Store the first two numbers of the Fibonacci sequence
    squares = []  # Store the list of perfect square numbers

    max_square = 0
    i = 2

    while i <= n:
        fibs.append(fibs[i-1] + fibs[i-2])  # Calculate the next Fibonacci number
        i += 1

    fib = fibs[-1]
    perfect_squares = [i**2 for i in range(1, int(math.sqrt(fib)) + 1)]
    max_square = max(filter(lambda x: x < fib, perfect_squares))
    return max_square
```

----------------

import { describe, expect, it, beforeAll, afterAll } from '@jest/globals';
import puppeteer from 'puppeteer';

describe('CSS Text Decoration Tests', () => {
  let browser;
  let page;

  beforeAll(async () => {
    browser = await puppeteer.launch({args: ['--no-sandbox']});
    page = await browser.newPage();
    await page.setContent(`#<INSERT>`);
  });

  afterAll(() => {
    browser.close();
  });

  test('The main title should not have a text decoration', async () => {
    const textDecoration = await page.evaluate(() => {
      const el = document.querySelector('h1.main-title');
      return window.getComputedStyle(el).textDecorationLine;
    });
    expect(textDecoration).toBe('none');
  });

  test('Links in paragraphs should be underlined', async () => {
    const textDecoration = await page.evaluate(() => {
      const el = document.querySelector('p .paragraph-link');
      return window.getComputedStyle(el).textDecorationLine;
    });
    expect(textDecoration).toBe('underline');
  });

  test('Links should not be underlined when hovered', async () => {
    await page.hover('p .paragraph-link');
    const textDecoration = await page.evaluate(() => {
      const el = document.querySelector('p .paragraph-link');
      return window.getComputedStyle(el).textDecorationLine;
    });
    expect(textDecoration).toBe('none');
  });

  test('Quotation blocks should have wavy underlines', async () => {
    const textDecorationStyle = await page.evaluate(() => {
      const el = document.querySelector('blockquote.quotation');
      return window.getComputedStyle(el).textDecorationStyle;
    });
    expect(textDecorationStyle).toBe('wavy');
  });
});


<!DOCTYPE html>

  <meta charset="UTF-8">
  <title>Font Family Styling Exercise</title>

Welcome to My Web Page

    This is a sample paragraph text designed to showcase the Roboto font.

    "Typography is the craft of endowing human language with a durable visual form." - Robert Bringhurst

In your newest web project, you're responsible for ensuring that the font style of the page text is consistent and complies with the design specifications. You will need to specify the font-family property for multiple text elements on the page. The following are the HTML elements that need to set the font:

1. The page's main title (

) should use 'Open Sans', sans-serif font family.
2. Paragraph text (

) should use 'Roboto', sans-serif font family.
3. Quoted text (

) should use 'Merriweather', serif font family.

CSS writing requirements:

1. Insert CSS in the

import { describe, expect, it, beforeAll, afterAll } from '@jest/globals';
import puppeteer from 'puppeteer';

describe('Font Family CSS Test Suite', () => {
  let browser;
  let page;

  beforeAll(async () => {
    browser = await puppeteer.launch({args: ['--no-sandbox']});
    page = await browser.newPage();
    await page.setContent(`#<INSERT>`);
  });

  it('should have the correct font-family for the main header', async () => {
    const fontFamily = await page.$eval('.main-header', el => getComputedStyle(el).fontFamily);
    expect(fontFamily).toBe('"Open Sans", sans-serif');
  });

  it('should have the correct font-family for the paragraph', async () => {
    const fontFamily = await page.$eval('.paragraph', el => getComputedStyle(el).fontFamily);
    expect(fontFamily).toBe('Roboto, sans-serif');
  });

  it('should have the correct font-family for the blockquote', async () => {
    const fontFamily = await page.$eval('.blockquote', el => getComputedStyle(el).fontFamily);
    expect(fontFamily).toBe('Merriweather, serif');
  });

  afterAll(async () => {
    await browser.close();
  });
});


<!DOCTYPE html>

  <meta charset="UTF-8">
  <title>文字装饰练习</title>

欢迎来到我们的网站

    想了解更多信息，请访问我们的文档。

第一项

第二项

第三项

As a front-end developer, your task is to update the text-decoration styles on a webpage. Specifically, you are required to set different decoration properties for the text of different elements according to the following design requirements.
Task description:

1. The main title
 should not have any text-decoration to maintain its prominence.
2. The hyperlinks in the paragraph text  should have an underline by default, but the underline should disappear when the mouse hovers over it.
3. The list items
 should have a strikethrough text-decoration.

CSS writing requirements:

1. Write the CSS code within the

import { describe, expect, it, beforeAll, afterAll } from '@jest/globals';
import puppeteer from 'puppeteer';

describe('CSS文字装饰测试', () => {
  let browser;
  let page;

  beforeAll(async () => {
    browser = await puppeteer.launch({args: ['--no-sandbox']});
    page = await browser.newPage();
    await page.setContent(`#<INSERT>`);
  });

  afterAll(async () => {
    await browser.close();
  });

  it('主标题应该无文本装饰', async () => {
    const textDecoration = await page.$eval('h1.title-main', el => getComputedStyle(el).textDecorationLine);
    expect(textDecoration).toBe('none');
  });

  it('段落内的超链接默认需要有下划线', async () => {
    const textDecoration = await page.$eval('a.link-paragraph', el => getComputedStyle(el).textDecorationLine);
    expect(textDecoration).toBe('underline');
  });

  it('当鼠标悬停在超链接上时，超链接需要无下划线', async () => {
    await page.hover('a.link-paragraph');
    const textDecoration = await page.$eval('a.link-paragraph', el => getComputedStyle(el).textDecorationLine);
    expect(textDecoration).toBe('none');
  });

  it('列表项需要有删除线文本装饰', async () => {
    const textDecoration = await page.$eval('li.item-list', el => getComputedStyle(el).textDecorationLine);
    expect(textDecoration).toBe('line-through');
  });
});


<!DOCTYPE html>

<meta charset="UTF-8">
<title>CSS padding 练习</title>

所有方向内边距均为10px的容器

上下内边距为20px, 左右内边距为30px的容器

顶部内边距为5px, 其余为15px的容器

Please write HTML and CSS code to create a page containing three div elements.
Set the padding around the first div container to 10px, the vertical padding of the second div container to 20px, the horizontal padding to 30px, and the padding of the third div to 15px except for the top padding which should be 5px.

CSS Writing Requirements:
1. Use class names to define selectors, such as: .container-padding-all, .container-padding-vertical-horizontal, .container-padding-except-top.
2. Write CSS code in the <style> tag in the <head> part of the HTML document.
3. Use two spaces as the code indentation unit.
4. Add a space between the selector and the left curly brace, add a space after the property colon, end the property value with a semicolon, each property needs to be written in a new line.
5. Keep a blank line between different rules to improve the readability of the code.

The answer to the question requires the HTML and CSS code together.
Please wrap the answering code with markdown code block format, e.g.
```html
[code]
```

import { describe, expect, it, beforeAll, afterAll } from '@jest/globals';
import puppeteer from 'puppeteer';

describe('不同内边距(padding)的容器元素测试', () => {
  let browser;
  let page;

  beforeAll(async () => {
    // 初始化浏览器和页面
    browser = await puppeteer.launch({args: ['--no-sandbox']});
    page = await browser.newPage();
    // 设置页面内容为上述HTML和CSS代码
    await page.setContent(`#<INSERT>`);
  });

  afterAll(async () => {
    // 关闭浏览器
    await browser.close();
  });

  test('所有方向内边距均为10px的容器测试', async () => {
    const paddingAll = await page.$eval('.container-padding-all', el => getComputedStyle(el).padding);
    expect(paddingAll).toBe('10px');
  });

  test('上下内边距为20px, 左右内边距为30px的容器测试', async () => {
    const paddingTop = await page.$eval('.container-padding-vertical-horizontal', el => getComputedStyle(el).paddingTop);
    const paddingBottom = await page.$eval('.container-padding-vertical-horizontal', el => getComputedStyle(el).paddingBottom);
    const paddingLeftRight = await page.$eval('.container-padding-vertical-horizontal', el => getComputedStyle(el).paddingLeft);
    expect(paddingTop).toBe('20px');
    expect(paddingBottom).toBe('20px');
    expect(paddingLeftRight).toBe('30px');
  });

  test('顶部内边距为5px, 其余为15px的容器测试', async () => {
    const paddingTop = await page.$eval('.container-padding-except-top', el => getComputedStyle(el).paddingTop);
    const paddingOther = await page.$eval('.container-padding-except-top', el => getComputedStyle(el).paddingRight);
    expect(paddingTop).toBe('5px');
    expect(paddingOther).toBe('15px');
  });
});


import (
	"fmt"
	"sync"
)
func ForkJoin(nums []int) int {
	forkChan := make(chan int, 10)
	var wg sync.WaitGroup
	wg.Add(1)
	go func() {
		defer wg.Done()
		for _, num := range nums {
			forkChan <- num
		}
	}()

	joinChan := make(chan int, 10)
	var joinWg sync.WaitGroup
	joinWg.Add(3)
	for i := 0; i < 3; i++ {
		go func(idx int) {
			defer joinWg.Done()
			for num := range forkChan {
				fmt.Printf("get num %v at %v\n", num, idx)
				joinChan <- num
			}
		}(i)
	}
	res := 0
	var mergeWg sync.WaitGroup
	mergeWg.Add(1)
	go func() {
		defer mergeWg.Done()
		for num := range joinChan {
			res += num
		}
	}()
	wg.Wait()
	close(forkChan)
	joinWg.Wait()
	close(joinChan)
	mergeWg.Wait()

	return res
}

Below is a function that implements ForkJoin functionality using Channels, using ForkJoin to calculate the sum of all numbers. Could you verify if the implementation has any issues? If so, how should the correct implementation code be written?
```go
func ForkJoin(nums []int) int {
	forkChan := make(chan int, 10)
	go func() {
		for _, num := range nums {
			forkChan <- num
		}
	}()

	joinChan := make(chan int, 10)
	for i := 0; i < 3; i++ {
		go func(idx int) {
			for num := range forkChan {
				fmt.Printf("get num %v at %v\n", num, idx)
				joinChan <- num
			}
			close(joinChan)
		}(i)
	}
	res := 0
	go func() {
		for num := range joinChan {
			res += num
		}
	}()
	return res
}
```

Question: Write a Golang code to achieve the following function.
Find the greatest perfect square number less than the nth Fibonacci number
The function signature is `func maxSquareNumber(n int) int`

Answer:
```go
import (
	"fmt"
	"math"
)

func maxSquareNumber(n int) int {
	if n <= 2 {
		return 0
	}

	fibs := []int{0, 1}
	var maxSquare int

	for i := 2; i <= n; i++ {
		fibs = append(fibs, fibs[i-1]+fibs[i-2])
	}

	fib := fibs[len(fibs)-1]
	perfectSquares := make([]int, 0)
	for i := 1; i <= int(math.Sqrt(float64(fib))); i++ {
		perfectSquares = append(perfectSquares, i*i)
	}

	maxSquare = 0
	for _, square := range perfectSquares {
		if square < fib {
			maxSquare = square
		} else {
			break
		}
	}

	return maxSquare
}
```

----------------

package main
import "testing"
#<INSERT>
func TestForkJoin(t *testing.T) {
	nums := []int{1, 2, 3, 4, 5, 6}
	actual := ForkJoin(nums)
	expected := 21
	if actual != expected {
		t.Errorf("not equal with expected %v actual %v", expected, actual)
		t.FailNow()
	}
}


<!DOCTYPE html>

  <meta charset="UTF-8">
  <title>Profile Card Challenge</title>

John Doe

Web developer with a passion for creating beautiful and functional websites.

Create a simple user profile card that includes an avatar, name, and short introduction. Below are the design requirements:

1. The user avatar (

) should have a circular border and contain an internal picture.
2. The user's name (

) should be displayed under the avatar.
3. A brief introduction text (

) should be displayed under the name.

Your CSS style must meet the following conditions:

1. User avatar should have 30px padding.
2. The user's name should have 20px of padding on the top and bottom, with no padding on the left and right.
3. The padding of the brief introduction text should be 15px.

CSS writing specifications:

1. The CSS code should be within the

import { describe, expect, it, beforeAll, afterAll } from '@jest/globals';
import puppeteer from 'puppeteer';

describe('Profile Card Padding', () => {
  let browser;
  let page;

  beforeAll(async () => {
    browser = await puppeteer.launch({args: ['--no-sandbox']});
    page = await browser.newPage();
    await page.setContent(`#<INSERT>`);
  });

  it('should have the correct padding on elements', async () => {
    const avatarPadding = await page.evaluate(() => {
      const avatar = document.querySelector('.avatar');
      return window.getComputedStyle(avatar).padding;
    });

    const nameMarginTop = await page.evaluate(() => {
      const name = document.querySelector('.name');
      return window.getComputedStyle(name).marginTop;
    });

    const nameMarginBottom = await page.evaluate(() => {
      const name = document.querySelector('.name');
      return window.getComputedStyle(name).marginBottom;
    });

    const bioPadding = await page.evaluate(() => {
      const bio = document.querySelector('.bio');
      return window.getComputedStyle(bio).padding;
    });

    expect(avatarPadding).toBe('30px');
    expect(nameMarginTop).toBe('20px');
    expect(nameMarginBottom).toBe('20px');
    expect(bioPadding).toBe('15px');
  });

  afterAll(async () => {
    await browser.close();
  });
});


<!DOCTYPE html>

<meta charset="UTF-8">
<title>CSS margin 练习题</title>

四周外边距15px

左右外边距25px

顶部外边距35px

Please write HTML and CSS code to create a page that includes three <div> elements, with each <div> set as follows:
1. The margin in all directions of the first <div> is set to 15px.
2. The left and right margins of the second <div> are set to 25px, with no top and bottom margins.
3. Only the top margin of the third <div> is set to 35px, with no margins in other directions.

CSS Writing Requirements:
1. Use the element name as the class name to define the CSS selector, such as .div-margin-all, .div-margin-horizontal, and .div-margin-top-only.
2. All CSS code should be written in the <style> tag within the <head> part of the HTML file.
3. Retain two spaces as the indentation unit.
4. Leave a space between the selector and the left brace, as well as after the property value and semicolon; no space is needed between the property name and colon.
5. Use a semicolon after ending the property declaration, and each property declaration should be on its own line.
6. Leave a line between different CSS rules to improve the readability of the code.

The answer should return the combined HTML and CSS code.
Please wrap the answering code with markdown code block format, e.g.
```html
[code]
```

import { describe, expect, it, beforeAll, afterAll } from '@jest/globals';
import puppeteer from 'puppeteer';

describe('Margin CSS Tests', () => {
  let browser;
  let page;

  beforeAll(async () => {
    browser = await puppeteer.launch({args: ['--no-sandbox']});
    page = await browser.newPage();
    await page.setContent(`#<INSERT>`);
  });

  afterAll(() => browser.close());

  it('第一个 div 的四周外边距应为 15px', async () => {
    const margin = await page.evaluate(() => window.getComputedStyle(document.querySelector('.div-margin-all')).marginTop);
    expect(margin).toBe('15px');
  });

  it('第二个 div 的左右外边距应为 25px', async () => {
    const marginLeft = await page.evaluate(() => window.getComputedStyle(document.querySelector('.div-margin-horizontal')).marginLeft);
    const marginRight = await page.evaluate(() => window.getComputedStyle(document.querySelector('.div-margin-horizontal')).marginRight);
    expect(marginLeft).toBe('25px');
    expect(marginRight).toBe('25px');
  });

  it('第三个 div 的顶部外边距应为 35px', async () => {
    const marginTop = await page.evaluate(() => window.getComputedStyle(document.querySelector('.div-margin-top-only')).marginTop);
    expect(marginTop).toBe('35px');
  });
});


<!DOCTYPE html>

<meta charset="UTF-8">
<title>CSS display:block 练习</title>

列表项1

列表项2

列表项3

列表项4

列表项5

Please create an unordered list (<ul>) that contains several list items (<li>). You need to use the display: block; property in CSS to ensure that all list items are vertically arranged on the page and that each list item has enough space to accommodate its content.
CSS writing requirements:
1. Use element names as class names to define selectors.
2. The CSS is written in the <style> tag in the <head> section of the HTML document.
3. Use two spaces for indentation.
4. Add a space between the selector and the left curly brace, after the property and the colon, and end the value of the property with a semicolon, each property on its own line.
5. Use a semicolon after each rule, and write the next rule on a new line.
6. Leave a blank line between rules to make the code more readable.
Please return the combined HTML and CSS code in your answer.
Please wrap the answering code with markdown code block format, e.g.
```html
[code]
```

import { describe, expect, it, beforeAll, afterAll } from '@jest/globals';
import puppeteer from 'puppeteer';

describe('列表项 CSS display:block 属性测试', () => {
  let browser;
  let page;

  beforeAll(async () => {
    browser = await puppeteer.launch({args: ['--no-sandbox']});
    page = await browser.newPage();
    await page.setContent(`#<INSERT>`);
  });

  afterAll(async () => {
    await browser.close();
  });

  test('列表项应被设置为块级元素', async () => {
    const items = await page.$$eval('.ul .li', elements => elements.map(el => getComputedStyle(el).display));
    items.forEach(display => expect(display).toBe('block'));
  });
});


<!DOCTYPE html>

<meta charset="UTF-8">
<title>CSS Margin Example</title>

第一个段落，所有方向的外边距为10px。

第二个段落，左右外边距为20px。

第三个段落，仅底部外边距为30px。

Write HTML and CSS code to display a webpage showing different margin effects. Please include three paragraph <p> elements, and set the following margins for each paragraph:
1. The first paragraph should have a 10px margin on all sides.
2. The second paragraph should only have a 20px margin on the left and right, with no margin on the top and bottom.
3. The third paragraph should only have a 30px margin at the bottom, with no margin on the other sides.
CSS writing requirements:
1. Use the element name as a class name to define selectors, such as .paragraph-margin-all, .paragraph-margin-horizontal, and .paragraph-margin-bottom-only.
2. The CSS code should be written in the <style> tag in the <head> section of the HTML document.
3. Indentation should use two spaces.
4. There should be a space between the selector and left brace, a space after the property and colon, and a semicolon after the property value.
5. Ensure that each property declaration occupies a separate line and leave blank lines between properties to improve readability.

The answer should return the combined HTML and CSS code.
Please wrap the answering code with markdown code block format, e.g.
```html
[code]
```

import { describe, expect, it, beforeAll, afterAll } from '@jest/globals';
import puppeteer from 'puppeteer';

describe('外边距（margin）CSS属性测试', () => {
  let browser;
  let page;

  beforeAll(async () => {
    browser = await puppeteer.launch({args: ['--no-sandbox']});
    page = await browser.newPage();
    await page.setContent(`#<INSERT>`);
  });

  afterAll(async () => {
    browser.close();
  });

  test('第一个段落应该具有所有方向的外边距为10px', async () => {
    const margin = await page.evaluate(() =>
      getComputedStyle(document.querySelector('.paragraph-margin-all')).margin);
    expect(margin).toBe('10px');
  });

  test('第二个段落的左右外边距应该为20px，上下为0', async () => {
    const marginLeft = await page.evaluate(() =>
      getComputedStyle(document.querySelector('.paragraph-margin-horizontal')).marginLeft);
    const marginRight = await page.evaluate(() =>
      getComputedStyle(document.querySelector('.paragraph-margin-horizontal')).marginRight);
    expect(marginLeft).toBe('20px');
    expect(marginRight).toBe('20px');
  });

  test('第三个段落的底部外边距应该为30px，其它方向为0', async () => {
    const marginBottom = await page.evaluate(() =>
      getComputedStyle(document.querySelector('.paragraph-margin-bottom-only')).marginBottom);
    expect(marginBottom).toBe('30px');
  });

});


import (
	"fmt"
	"io/ioutil"
	"log"
	"net/http"
	_ "net/http/pprof"
	"strings"
)

func StartPprofServer() {
	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
		fmt.Fprintf(w, "Hello, World %s", r.URL.Path)
	})

	port := "8080"
	fmt.Printf("Server is running at http://localhost:%s/\n", port)

	http.ListenAndServe(":"+port, nil)
}

func GetPprofInfo() string {
	url := "http://localhost:8080/debug/pprof"

	resp, err := http.Get(url)
	if err != nil {
		log.Fatalf("Error occurred while sending a GET request to %s: %s", url, err)
	}
	defer resp.Body.Close()

	body, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		log.Fatalf("Error reading response body: %s", err)
	}
	splits := strings.Split(string(body), "\n")
	var res []string
	for _, split := range splits {
		if strings.HasPrefix(split, "<title>") {
			res = append(res, split)
		}
	}
	if len(res) != 0 {
		return res[0]
	} else {
		return ""
	}
}

In Golang, we usually need to start pprof for debugging and positioning. Please configure pprof in the Golang service and obtain the corresponding <title> field.
Requirements:
1. Implement the function `func StartPprofServer()` to start the service.
2. Implement the function `func GetPprofInfo() string` to respond to requests.

package main
import "testing"
#<INSERT>

func TestStartPprofServer(t *testing.T) {
	go StartPprofServer()
	actual := GetPprofInfo()
	expected := "<title>/debug/pprof/</title>"
	if actual == expected {
		t.Log("get data succeed")
	} else {
		t.Errorf("not equal with expected expected %v actual %v", expected, actual)
		t.FailNow()
	}
}


<!DOCTYPE html>

<meta charset="UTF-8">
<title>CSS Display:block 练习</title>

    首页
    新闻
    联系我们
    关于我们

You need to design a simple vertical navigation bar. The navigation bar should be created within a <nav> element, which contains multiple <a> links. By applying the display: block; property, ensure that these links are arranged vertically as block-level elements.
CSS writing requirements:
1. Use the element name as a class name to define the selector.
2. Write the CSS in the <style> tag within the <head> part of the HTML document.
3. Indent with two spaces.
4. Add a space between the selector and the left curly bracket, after the colon, and between each property declaration and the semicolon.
5. Use a semicolon at the end of each rule, and write the next rule on a new line.
6. There should be a blank line between the rules to improve readability of the code.

The answer should return the HTML and CSS code together.
Please wrap the answering code with markdown code block format, e.g.
```html
[code]
```

import { describe, expect, it, beforeAll, afterAll } from '@jest/globals';
import puppeteer from 'puppeteer';

describe('导航条 CSS display:block 属性测试', () => {
  let browser;
  let page;

  beforeAll(async () => {
    browser = await puppeteer.launch({args: ['--no-sandbox']});
    page = await browser.newPage();
    await page.setContent(`#<INSERT>`);
  });

  afterAll(async () => {
    await browser.close();
  });

  test('导航链接应为块级元素', async () => {
    const navLinkDisplay = await page.$eval('.nav a', el => getComputedStyle(el).display);
    expect(navLinkDisplay).toBe('block');
  });
});


<!DOCTYPE html>

  <meta charset="UTF-8">
  <title>文本装饰练习</title>

这是主标题

请访问我的个人网站获取更多信息。

强调文本应该有点状下划线。

You are designing a style for a web page and need to enhance the visual effect of different text elements on the page through CSS.
Task requirements:
1. Remove any form of text decoration for the main title on the page (using the <h1> tag).
2. For all links in the paragraphs on the page (using the <p> tag and the <a> tag), the default should be underlined, but the underline should be removed when the mouse hovers.
3. Add dotted underline for the emphasized text on the page (using the <em> tag).

CSS Writing Rules
1. Include CSS code in the <head> part of the HTML document, using the <style> tag.
2. Use the element name as the CSS class name to define the selector. For example, for the <h1> element, the class name should be .h1.
3. The class names for the main title, link, and emphasized text are .main-title, .paragraph-link, and .emphasized-text respectively in the examples.
4. Ensure there is a space between the selector and {, and there should be an indentation of two spaces before the property declaration inside the selector.
5. Use ; as the end of the declaration after each property value and newline before closing }.

The answer is required to return the combined HTML and CSS code.
Please wrap the answering code with markdown code block format, e.g.
```html
[code]
```

import { describe, expect, it, beforeAll, afterAll } from '@jest/globals';
import puppeteer from 'puppeteer';

describe('Text Decoration CSS Tests', () => {
  let browser;
  let page;

  beforeAll(async () => {
    browser = await puppeteer.launch({args: ['--no-sandbox']});
    page = await browser.newPage();
    await page.setContent(`#<INSERT>`);
  });

  afterAll(async () => {
    await browser.close();
  });

  test('The main title should not have text decorations', async () => {
    const textDecoration = await page.evaluate(() => {
      const title = document.querySelector('h1.main-title');
      return getComputedStyle(title).textDecorationLine;
    });
    expect(textDecoration).toBe('none');
  });

  test('Paragraph links should be underlined by default', async () => {
    const textDecoration = await page.evaluate(() => {
      const link = document.querySelector('.paragraph-link');
      return getComputedStyle(link).textDecorationLine;
    });
    expect(textDecoration).toBe('underline');
  });

  test('Paragraph links should not have underline on hover', async () => {
    await page.hover('.paragraph-link');
    const textDecorationAfterHover = await page.evaluate(() => {
      const link = document.querySelector('.paragraph-link');
      return getComputedStyle(link).textDecorationLine;
    });
    expect(textDecorationAfterHover).toBe('none');
  });

  test('Emphasized text should have dotted underline', async () => {
    const textDecoration = await page.evaluate(() => {
      const emphasizedText = document.querySelector('.emphasized-text');
      return getComputedStyle(emphasizedText).textDecorationStyle;
    });
    expect(textDecoration).toBe('dotted');
  });
});


<!DOCTYPE html>

<meta charset="UTF-8">
<title>CSS margin 练习题</title>

四周外边距为20px

左右外边距为40px

只有底部外边距为50px

Please write HTML and CSS code to create a page that includes three <div> elements. Each <div> should be set as follows:
1. The first <div> should have a margin of 20px on all sides.
2. The second <div> should have a margin of 40px on the left and right, with no margin set on the top and bottom.
3. The third <div> should have a margin of 50px only on the bottom, with no margin set on the other sides.

CSS writing requirements:
1. Use the class name of the <div> as the CSS selector, for example: .margin-all, .margin-horizontal, .margin-bottom-only.
2. The CSS code should be written within the <style> tag, which is located in the <head> section of the HTML document.
3. Indents should be two spaces.
4. There should be a space between the selector and the left brace, a space after the property colon, and a semicolon should be used to end the property value.
5. Each property declaration should be on a separate line, and there should be a blank line between each CSS rule set to improve readability.

The answer should include the combined HTML and CSS codes.
Please wrap the answering code with markdown code block format, e.g.
```html
[code]
```

import { describe, expect, it, beforeAll, afterAll } from '@jest/globals';
import puppeteer from 'puppeteer';

describe('不同外边距的 <div> 元素测试', () => {
  let browser;
  let page;

  beforeAll(async () => {
    browser = await puppeteer.launch({args: ['--no-sandbox']});
    page = await browser.newPage();
    await page.setContent(`#<INSERT>`);
  });

  afterAll(async () => {
    await browser.close();
  });

  it('四周外边距为20px', async () => {
    const margin = await page.$eval('.margin-all', el => getComputedStyle(el).margin);
    expect(margin).toBe('20px');
  });

  it('左右外边距为40px', async () => {
    const marginLeft = await page.$eval('.margin-horizontal', el => getComputedStyle(el).marginLeft);
    const marginRight = await page.$eval('.margin-horizontal', el => getComputedStyle(el).marginRight);
    expect(marginLeft).toBe('40px');
    expect(marginRight).toBe('40px');
  });

  it('只有底部外边距为50px', async () => {
    const marginBottom = await page.$eval('.margin-bottom-only', el => getComputedStyle(el).marginBottom);
    expect(marginBottom).toBe('50px');
  });
});


type Model struct {
	ID        int
	Status    string
	ModelName string
}

func ReadModelsFromCSV(filePath string) ([]Model, error) {
	file, err := os.Open(filePath)
	if err != nil {
		return nil, fmt.Errorf("unable to open the CSV file: %v", err)
	}
	defer file.Close()

	var models []Model
	r := csv.NewReader(file)
	if _, err := r.Read(); err != nil {
		return nil, fmt.Errorf("unable to read the header row: %v", err)
	}

	for {
		record, err := r.Read()
		if err == io.EOF {
			break
		}
		if err != nil {
			return nil, fmt.Errorf("unable to read the CSV row: %v", err)
		}

		id, err := strconv.Atoi(record[0])
		if err != nil {
			return nil, fmt.Errorf("unable to parse the ID: %v", err)
		}

		model := Model{
			ID:        id,
			Status:    record[1],
			ModelName: record[2],
		}
		models = append(models, model)
	}

	return models, nil
}

There is a csv file of the model containing columns such as ID(int), Status(string), ModelName(string). Write a function in golang to read the csv file and parse it into a list of structures.
The function signature that should be implemented is: `func ReadModelsFromCSV(filePath string) ([]Model, error)`

package main

import (
	"io/ioutil"
	"reflect"
	"testing"
	"encoding/csv"
	"fmt"
	"io"
	"os"
    "strconv"
)

#<INSERT>

func TestReadModelsFromCSV(t *testing.T) {
	content := []byte("id,status,model_name\n1,active,ModelX\n2,inactive,ModelY")
	tmpfile, err := ioutil.TempFile("", "example.*.csv")
	if err != nil {
		t.Fatal(err)
	}
	defer os.Remove(tmpfile.Name()) // 清理临时文件

	if _, err := tmpfile.Write(content); err != nil {
		tmpfile.Close()
		t.Fatal(err)
	}
	if err := tmpfile.Close(); err != nil {
		t.Fatal(err)
	}

	models, err := ReadModelsFromCSV(tmpfile.Name())
	if err != nil {
		t.Fatalf("ReadModelsFromCSV() error = %v", err)
	}

	want := []Model{
		{ID: 1, Status: "active", ModelName: "ModelX"},
		{ID: 2, Status: "inactive", ModelName: "ModelY"},
	}

	if !reflect.DeepEqual(models, want) {
		t.Errorf("ReadModelsFromCSV() = %v, want %v", models, want)
	}
}


<!DOCTYPE html>

  <meta charset="UTF-8">
  <title>CSS text-decoration 练习</title>

文章标题

这是页面中的一个段落。里面有一些文本，这些文本应该有虚线下划线。

段落中的链接在鼠标悬停时应该显示波浪下划线。

You need to perform the following style requirements on the text in the blog article page:
1. Remove underline text decoration for all main titles (<h1> elements) on the page.
2. Add dashed underline decoration to the text of all paragraphs (<p> elements) on the page.
3. All hyperlinks (<a> elements) within the page should keep the default underline, but when the mouse hovers, the underline should become a wavy line.

CSS writing requirements

1. CSS code should be written within the <style> tags in the HTML document.
2. Use the element name followed by a dot and class name to form selectors, for example, .h1 corresponds to <h1 class="h1">.
3. Leave a space between rule sets (selectors and declaration blocks).
4. Do not add a space between the property name and the colon, add a space between the colon and the property value.
5. Property declarations end with a semicolon and are vertically aligned within the declaration block.
6. Use two spaces for indentation.

The answer should return the combined HTML and CSS code.
Please wrap the answering code with markdown code block format, e.g.
```html
[code]
```

import { describe, expect, it, beforeAll, afterAll } from '@jest/globals';
import puppeteer from 'puppeteer';

describe('CSS text-decoration tests', () => {
  let browser;
  let page;

  beforeAll(async () => {
    browser = await puppeteer.launch({args: ['--no-sandbox']});
    page = await browser.newPage();
    await page.setContent(`#<INSERT>`);
  });

  afterAll(async () => {
    await browser.close();
  });

  test('h1 elements should have no text decoration', async () => {
    const textDecoration = await page.evaluate(() => {
      const h1 = document.querySelector('.h1');
      return getComputedStyle(h1).textDecorationLine;
    });
    expect(textDecoration).toBe('none');
  });

  test('p elements should have a dashed underline', async () => {
    const textDecoration = await page.evaluate(() => {
      const p = document.querySelector('.p');
      return getComputedStyle(p).textDecorationStyle;
    });
    expect(textDecoration).toBe('dashed');
  });

  test('a elements should have an underline by default', async () => {
    const textDecoration = await page.evaluate(() => {
      const a = document.querySelector('.a');
      return getComputedStyle(a).textDecorationLine;
    });
    expect(textDecoration).toBe('underline');
  });

  test('a elements should have a wavy underline on hover', async () => {
    await page.hover('.a');
    const textDecoration = await page.evaluate(() => {
      const a = document.querySelector('.a');
      return getComputedStyle(a).textDecorationStyle;
    });
    expect(textDecoration).toBe('wavy');
  });
});


<!DOCTYPE html>

<meta charset="UTF-8">
<title>CSS Text-shadow 练习</title>

主标题文本阴影

段落文本阴影

  多重文本阴影

Create an HTML page and accomplish the following requirements using CSS:
1. Add a text shadow effect to the <h1> element with a horizontal offset of 2px, a vertical offset of 2px, a blur radius of 4px, and in grey color.
2. Add to the <p> element a text shadow effect with a horizontal offset of -1px, a vertical offset of 1px, a blur radius of 2px, and in red color.
3. Design the <span> element to have multiple shadow effects on its text, specifically a blue shadow with 3px of horizontal offset, 3px of vertical offset, 0px of blur, and then another pink shadow that is offset in the opposite direction, with -3px of horizontal and -3px of vertical offset, with 0 blur as well.

CSS Wirting Guidelines:
1. Use the element names as class names to define the selectors.
2. CSS should be written in the <style> tag within the <head> section of the HTML document.
3. Indent with two spaces.
4. Insert one space between the selector and the opening brace, after the colon and between each property declaration and the semi-colon.
5. Use a semi-colon at the end of each rule and write the next rule on a new line.
6. Leave a blank line between the rules to improve the readability of the code.

The answer should return the HTML and CSS code combined.
Please wrap the answering code with markdown code block format, e.g.
```html
[code]
```

import { describe, expect, it, beforeAll, afterAll } from '@jest/globals';
import puppeteer from 'puppeteer';

describe('CSS Text-shadow 属性测试', () => {
  let browser;
  let page;

  beforeAll(async () => {
    browser = await puppeteer.launch({args: ['--no-sandbox']});
    page = await browser.newPage();
    await page.setContent(`#<INSERT>`);

  });

  afterAll(async () => {
    await browser.close();
  });

  test('h1元素文本阴影样式检查', async () => {
    const textShadow = await page.$eval('.h1', el => getComputedStyle(el).textShadow);
    expect(textShadow).toBe('rgb(128, 128, 128) 2px 2px 4px'); // 注意：验证颜色时要使用其RGB值
  });

  test('p元素文本阴影样式检查', async () => {
    const textShadow = await page.$eval('.p', el => getComputedStyle(el).textShadow);
    expect(textShadow).toBe('rgb(255, 0, 0) -1px 1px 2px');
  });

  test('span元素多重文本阴影样式检查', async () => {
    const textShadow = await page.$eval('.span', el => getComputedStyle(el).textShadow);
    // 由于浏览器可能会返回不同格式的阴影值，我们需要检查它是否包含了正确的阴影值
    expect(textShadow).toContain('rgb(0, 0, 255) 3px 3px 0px');
    expect(textShadow).toContain('rgb(255, 192, 203) -3px -3px 0px');
  });
});


<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="UTF-8">
<title>Outline属性练习</title>
<style>
  .input:focus {
    outline: 3px solid green;
  }

  .textarea:focus {
    outline: 5px dotted blue;
    outline-offset: 10px;
  }

  .button:focus {
    outline: none;
  }
</style>
</head>
<body>
  <input class="input" placeholder="请在这里输入">
  <textarea class="textarea">请在这里输入文本</textarea>
  <button class="button">点击我</button>
</body>
</html>

Given the following HTML page, you need to add styles via CSS to achieve specific visual effects:
1. When a user clicks on the <input> element, it should display a 3-pixel thick solid green outline, and this outline should not affect the element's layout.
2. When a user clicks on the <textarea> element, it should display a 5-pixel thick blue dotted outline, with an offset of 10 pixels around the outline.
3. Provide styles to ensure that the <button> element has no outline when clicked.

CSS writing requirements:
1. Use the element name as the class name to define the selector.
2. CSS should be defined within the <style> tag in the <head> part of the HTML document.
3. Indent with two spaces.
4. Keep a space between the selector and the braces and between the property and the value.
5. A semicolon should be used at the end of each statement.
6. Keep a blank line between each CSS rule to improve readability.

It is required to return a joint HTML and CSS code in the answer.
Please wrap the answering code with markdown code block format, e.g.
```html
[code]
```

import { describe, expect, it, beforeAll, afterAll } from '@jest/globals';
import puppeteer from 'puppeteer';

describe('CSS outline属性测试', () => {
  let browser;
  let page;

  beforeAll(async () => {
    browser = await puppeteer.launch({args: ['--no-sandbox']});
    page = await browser.newPage();
    await page.setContent(`#<INSERT>`);
  });

  afterAll(async () => {
    await browser.close();
  });

  test('input元素获取焦点时的outline样式', async () => {
    await page.focus('.input');
    const outline = await page.$eval('.input', el => getComputedStyle(el).outline);
    expect(outline).toBe('rgb(0, 128, 0) solid 3px');
  });

  test('textarea元素获取焦点时的outline样式以及是否有偏移', async () => {
    await page.focus('.textarea');
    const outline = await page.$eval('.textarea', el => getComputedStyle(el).outline);
    const outlineOffset = await page.$eval('.textarea', el => getComputedStyle(el).outlineOffset);
    expect(outline).toBe('rgb(0, 0, 255) dotted 5px');
    expect(outlineOffset).toBe('10px');
  });

  test('button元素获取焦点时没有outline', async () => {
    await page.focus('.button');
    const outline = await page.$eval('.button', el => getComputedStyle(el).outlineStyle);
    expect(outline).toBe('none');
  });
});


<!DOCTYPE html>

<meta charset="UTF-8">
<title>CSS font-size 练习</title>

响应式标题

这是一个段落。随着窗口尺寸的改变，文字的大小也会做出相应的调整。

Please write HTML and CSS codes to create a simple page that includes a title and a paragraph. The title should be larger than the paragraph text, and the page must be responsive to different screen sizes. When the screen width is less than 600px, the size of the title and paragraph text should automatically decrease.
CSS writing requirements:
1. Use element tags as class names to define selectors, for example: .h1, .p.
2. Write CSS code within <style> tags in the <head> section of the HTML document.
3. Use two spaces for indentation.
4. Add a space between the selector and the left brace, and after the attribute colon, terminate with a semicolon after the attribute value, and start a new line for each attribute.
5. Leave a blank line between each CSS rule to improve code readability.
6. Use media queries to implement responsive text size.

The answer should return the combined HTML and CSS code.
Please wrap the answering code with markdown code block format, e.g.
```html
[code]
```

import { describe, expect, it, beforeAll, afterAll } from '@jest/globals';
import puppeteer from 'puppeteer';

describe('响应式文本大小 CSS font-size 属性测试', () => {
  let browser;
  let page;

  beforeAll(async () => {
    browser = await puppeteer.launch({args: ['--no-sandbox']});
    page = await browser.newPage();
    await page.setContent(`#<INSERT>`);
  });

  afterAll(async () => {
    await browser.close();
  });

  test('标题和段落在大屏幕上应显示正常大小', async () => {
    await page.setViewport({ width: 800, height: 600 }); // 设置视窗大小为800x600，模拟大屏幕
    const h1FontSize = await page.$eval('.h1', el => getComputedStyle(el).fontSize);
    expect(h1FontSize).toBe('36px');
    const pFontSize = await page.$eval('.p', el => getComputedStyle(el).fontSize);
    expect(pFontSize).toBe('18px');
  });

  test('标题和段落在小屏幕上应自动缩小大小', async () => {
    await page.setViewport({ width: 500, height: 600 }); // 设置视窗大小为500x600，模拟小屏幕
    const h1FontSize = await page.$eval('.h1', el => getComputedStyle(el).fontSize);
    expect(h1FontSize).toBe('24px');
    const pFontSize = await page.$eval('.p', el => getComputedStyle(el).fontSize);
    expect(pFontSize).toBe('14px');
  });
});


<!DOCTYPE html>

  <meta charset="UTF-8">
  <title>CSS text-align 练习</title>

主标题居中对齐

这个段落文本应该对齐到右边。

这个引用文本应该对齐到左边。

In an HTML page, you need to set the text alignment to enhance the readability and aesthetics of the page. Please complete the following tasks:
1. Set all the main headings (<h1> elements) on the page to center alignment.
2. Set all the paragraphs (<p> elements) on the page to align text to the right.
3. Set all the block quotes (<blockquote> elements) on the page to align text to the left.

CSS writing requirements
1. Write CSS code in the <style> tags, which are located in the <head> part of the HTML.
2. Use the tag name of each HTML element as its class name to define selectors, for example, use <h1 class="h1"> and .h1.
3. Use common CSS formatting rules as follows:
4. Two spaces for indentation.
5. Insert a space between the selector and {.
6. Add a space after the colon following the property name.
7. Do not add a space before the colon in property values.
8. A semicolon should be added after each property declaration;.
9. There should be a blank line between each pair of declaration brackets {}.

The answer is required to return the combined HTML and CSS code.
Please wrap the answering code with markdown code block format, e.g.
```html
[code]
```

import { describe, expect, it, beforeAll, afterAll } from '@jest/globals';
import puppeteer from 'puppeteer';

describe('CSS text-align tests', () => {
  let browser;
  let page;

  beforeAll(async () => {
    browser = await puppeteer.launch({args: ['--no-sandbox']});
    page = await browser.newPage();
    await page.setContent(`#<INSERT>`);
  });

  afterAll(async () => {
    await browser.close();
  });

  it('h1 elements should be center aligned', async () => {
    const textAlign = await page.$eval('.h1', el => getComputedStyle(el).textAlign);
    expect(textAlign).toBe('center');
  });

  it('p elements should be right aligned', async () => {
    const textAlign = await page.$eval('.p', el => getComputedStyle(el).textAlign);
    expect(textAlign).toBe('right');
  });

  it('blockquote elements should be left aligned', async () => {
    const textAlign = await page.$eval('.blockquote', el => getComputedStyle(el).textAlign);
    expect(textAlign).toBe('left');
  });
});


<!DOCTYPE html>

<meta charset="UTF-8">
<title>text-align 属性练习</title>

这是一个居中对齐的标题

这是一个右对齐的段落文本。

    这是一个左对齐的块引用文本。

Create an HTML document containing several <h1>, <p>, and <blockquote> elements. You need to apply CSS styles to them to achieve the following alignment requirements:
1. The text in all <h1> elements should be centered horizontally.
2. The text in all <p> elements should be aligned to the right.
3. The text in all <blockquote> elements should be aligned to the left.

CSS Writing Requirements
1. Define CSS styles in the <style> tag and place them in the HTML head (<head>).
2. Use the element names as class names to define CSS selectors, for example, <h1 class="h1">, the corresponding selector is .h1.
3. To keep the code clean and consistent, please follow the rules below:
4. Use two spaces for indentation.
5. Insert a space between selectors and {, and property names and :.
6. Each property declaration should end with a semicolon;.
7. Try to keep the property values vertically aligned.

The answer should return the combined HTML and CSS code.
Please wrap the answering code with markdown code block format, e.g.
```html
[code]
```

import { describe, expect, it, beforeAll, afterAll } from '@jest/globals';
import puppeteer from 'puppeteer';

describe('text-align CSS 属性测试', () => {
  let browser;
  let page;

  beforeAll(async () => {
    browser = await puppeteer.launch({args: ['--no-sandbox']});
    page = await browser.newPage();
    await page.setContent(`#<INSERT>`);
  });

  afterAll(async () => {
    await browser.close();
  });

  test('标题（h1）居中对齐', async () => {
    const textAlign = await page.$eval('.h1', element => getComputedStyle(element).textAlign);
    expect(textAlign).toBe('center');
  });

  test('段落（p）向右对齐', async () => {
    const textAlign = await page.$eval('.p', element => getComputedStyle(element).textAlign);
    expect(textAlign).toBe('right');
  });

  test('引用（blockquote）向左对齐', async () => {
    const textAlign = await page.$eval('.blockquote', element => getComputedStyle(element).textAlign);
    expect(textAlign).toBe('left');
  });
});


<!DOCTYPE html>

  <meta charset="UTF-8">
  <title>CSS text-align 练习</title>

这是一个居中的标题

这是一个右对齐的段落。

这是一个左对齐的引用。

In a webpage document, you need to set different text alignment modes. Please write the CSS code according to the following requirements:
1. Center align all heading (<h1> element) text.
2. Right align all paragraph (<p> element) text.
3. Left align all quote (<blockquote> element) text.

CSS Writing Requirements
1. Write the CSS code in the <style> tags within the HTML document.
2. Use the element name as a class name to define selectors. For example, the class name for <h1> should be h1.
3. To keep the code clean and readable, it is recommended to follow these formatting rules:
4. Indent with 2 spaces.
5. Add a space between selectors and {.
6. Add a space after the : following the property name.
7. Use a semicolon ; at the end of each property declaration line.
8. The property declarations should be aligned vertically.

Please return the assembled HTML and CSS code in the answer.
Please wrap the answering code with markdown code block format, e.g.
```html
[code]
```

import { describe, expect, it, beforeAll, afterAll } from '@jest/globals';
import puppeteer from 'puppeteer';

describe('CSS text-align tests', () => {
  let browser;
  let page;

  beforeAll(async () => {
    browser = await puppeteer.launch({args: ['--no-sandbox']});
    page = await browser.newPage();
    await page.setContent(`#<INSERT>`);
  });

  afterAll(async () => {
    await browser.close();
  });

  test('h1 elements should be center aligned', async () => {
    const textAlign = await page.evaluate(() => {
      const h1 = document.querySelector('.h1');
      return getComputedStyle(h1).textAlign;
    });
    expect(textAlign).toBe('center');
  });

  test('p elements should be right aligned', async () => {
    const textAlign = await page.evaluate(() => {
      const p = document.querySelector('.p');
      return getComputedStyle(p).textAlign;
    });
    expect(textAlign).toBe('right');
  });

  test('blockquote elements should be left aligned', async () => {
    const textAlign = await page.evaluate(() => {
      const blockquote = document.querySelector('.blockquote');
      return getComputedStyle(blockquote).textAlign;
    });
    expect(textAlign).toBe('left');
  });
});


import (
	"fmt"
	"io/ioutil"
	"log"
	"net/http"
)

func StartWebServer() {
	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
		fmt.Fprintf(w, "Hello, World %s", r.URL.Path)
	})

	port := "8080"
	fmt.Printf("Server is running at http://localhost:%s/\n", port)

	http.ListenAndServe(":"+port, nil)
}

func GetHttpWorld() string {
	url := "http://localhost:8080"

	resp, err := http.Get(url)
	if err != nil {
		log.Fatalf("Error occurred while sending a GET request to %s: %s", url, err)
	}
	defer resp.Body.Close()

	body, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		log.Fatalf("Error reading response body: %s", err)
	}
	return string(body)
}

Quickly set up a webserver service using go, when a user access request, directly return "Hello, World /"
Requirements:
1. Implement the function `func StartWebServer()` to start the service
2. Implement the function `func GetHttpWorld() string` to respond to requests.

package main
import "testing"
#<INSERT>
func TestStartWebServer(t *testing.T) {
	go StartWebServer()
	actual := GetHttpWorld()
	expected := "Hello, World /"
	if actual == expected {
		t.Log("get data succeed")
	} else {
		t.Errorf("not equal with expected expected |%v| actual |%v|", expected, actual)
		t.FailNow()
	}
}


<!DOCTYPE html>

  <meta charset="UTF-8">
  <title>CSS text-align 练习</title>

主标题居中

这是一个段落，应该右对齐。

这是一个引言，它应该左对齐。

In a blog post, you are responsible for setting the text alignment:
1. The text of all main titles (<h1> element) needs to be centered.
2. The text of all paragraphs (<p> element) needs to be right-aligned.
3. The text of all quotes (<blockquote> element) needs to be left-aligned.

CSS Writing Requirements
1. Write the CSS code directly in the <style> tag in the HTML document.
2. Use the HTML element name as the class name to define the selector, for example .h1 corresponds to <h1 class="h1">.
3. Maintain proper indentation (2 spaces as indentation) and space between selectors and property declarations.
4. Do not add a space before the colon, add one space after the colon.
5. Use a semicolon after each property declaration and align vertically within the declaration block.1

The answer is required to return the combined HTML and CSS code.
Please wrap the answering code with markdown code block format, e.g.
```html
[code]
```

import { describe, expect, it, beforeAll, afterAll } from '@jest/globals';
import puppeteer from 'puppeteer';

describe('CSS text-align tests', () => {
  let browser;
  let page;

  beforeAll(async () => {
    browser = await puppeteer.launch({args: ['--no-sandbox']});
    page = await browser.newPage();
    await page.setContent(`#<INSERT>`);
  });

  afterAll(async () => {
    await browser.close();
  });

  test('h1 elements should be center-aligned', async () => {
    const textAlign = await page.evaluate(() => {
      const h1 = document.querySelector('.h1');
      return getComputedStyle(h1).textAlign;
    });
    expect(textAlign).toBe('center');
  });

  test('p elements should be right-aligned', async () => {
    const textAlign = await page.evaluate(() => {
      const p = document.querySelector('.p');
      return getComputedStyle(p).textAlign;
    });
    expect(textAlign).toBe('right');
  });

  test('blockquote elements should be left-aligned', async () => {
    const textAlign = await page.evaluate(() => {
      const blockquote = document.querySelector('.blockquote');
      return getComputedStyle(blockquote).textAlign;
    });
    expect(textAlign).toBe('left');
  });
});


import (
	"fmt"
	"sync"
)

func interleavedByChannel(nums []int, bytes []byte) (string, error) {
	if len(nums) != len(bytes) {
		return "", fmt.Errorf("mismatch nums")
	}
	signalCh1 := make(chan int)
	signalCh2 := make(chan int)
	wg := sync.WaitGroup{}
	wg.Add(1)
	var res string
	go func() {
		defer wg.Done()
		for _, v := range nums {
			res += fmt.Sprintf("%v", v)
			signalCh1 <- 1
			<-signalCh2
		}
	}()

	wg.Add(1)
	go func() {
		defer wg.Done()
		for _, v := range bytes {
			<-signalCh1
			res += fmt.Sprintf("%c", v)
			signalCh2 <- 1
		}
	}()
	wg.Wait()
	return res, nil
}

Implement a function in Golang, `interleavedByChannel(nums []int, bytes []byte) (string, error)`. Inside the function, start two goroutines, each responsible for generating an element from an array into a string. The two goroutines interact through a channel to print the result, which is preserved in the returned string. If not aligned, return the mismatch nums exception. The function should not leak goroutines after exiting.

package main
import "testing"

#<INSERT>

func TestInterleavedByChannel(t *testing.T) {
	nums := []int{1, 2, 3, 4}
	bytes := []byte{'a', 'b', 'c', 'd'}
	expected := "1a2b3c4d"
	actual, _ := interleavedByChannel(nums, bytes)
	if actual != expected {
		t.Errorf("not equal with expected %v actual %v", expected, actual)
		t.FailNow()
	}
}


<!DOCTYPE html>

<meta charset="UTF-8">
<title>text-align属性练习</title>

标题居中对齐

这个段落右对齐。

这个引用左对齐。

Please write CSS styles for the following HTML elements:
1. Set the text in the <h1> element to be center aligned.
2. Set the text in the <p> element to be right aligned.
3. Set the text in the <blockquote> element to be left aligned.
4. Element names should be used to define CSS selectors as a class name, such as <h1 class="h1">.
CSS Writing Requirements

1. CSS styles need to be defined within the <style> tag in the <head> part of the HTML document.
2. Use two spaces for indenting.
3. There should be a space between the selector and the braces.
4. There should be no space between the property name and the colon, but a space between the colon and the property value.
5. After each style declaration is finished, append a semicolon, and start a new declaration line.
6. There should be a blank line between each group of style rules.

The answer should return the combined HTML and CSS code.
Please wrap the answering code with markdown code block format, e.g.
```html
[code]
```

import { describe, expect, it, beforeAll, afterAll } from '@jest/globals';
import puppeteer from 'puppeteer';

describe('CSS text-align属性验证', () => {
  let browser;
  let page;

  beforeAll(async () => {
    browser = await puppeteer.launch({args: ['--no-sandbox']});
    page = await browser.newPage();
    await page.setContent(`#<INSERT>`);
  });

  afterAll(async () => {
    await browser.close();
  });

  test('标题h1应该居中对齐', async () => {
    const textAlign = await page.$eval('.h1', el => getComputedStyle(el).textAlign);
    expect(textAlign).toBe('center');
  });

  test('段落p应该右对齐', async () => {
    const textAlign = await page.$eval('.p', el => getComputedStyle(el).textAlign);
    expect(textAlign).toBe('right');
  });

  test('引用blockquote应该左对齐', async () => {
    const textAlign = await page.$eval('.blockquote', el => getComputedStyle(el).textAlign);
    expect(textAlign).toBe('left');
  });
});


type User struct {
	FirstName string `json:"firstName"`
	LastName  string `json:"lastName"`
	Age       int    `json:"-"`
}

func SerializeUser(u User) (string, error) {
	jsonBytes, err := json.Marshal(u)
	if err != nil {
		return "", err
	}
	return string(jsonBytes), nil
}

func DeserializeUser(jsonStr string) (User, error) {
	var u User
	err := json.Unmarshal([]byte(jsonStr), &u)
	if err != nil {
		return User{}, err
	}
	return u, nil
}

Use Go language to write code to implement JSON serialization and deserialization for a user structure `User`. The structure `User` contains `FirstName`, `LastName` and `Age` fields.
Requirements:
The `FirstName` and `LastName` fields should start with a lowercase letter in JSON (i.e., `firstName` and `lastName`).
The `Age` field should not be displayed in JSON, even if it has a value.
The function signatures to be implemented are: `func SerializeUser(u User) (string, error)` and `func DeserializeUser(jsonStr string) (User, error)`.

package main

import (
	"testing"
	"encoding/json"
)

#<INSERT>

func TestSerializeUser(t *testing.T) {
	user := User{
		FirstName: "John",
		LastName:  "Doe",
		Age:       30,
	}
	want := `{"firstName":"John","lastName":"Doe"}`

	got, err := SerializeUser(user)
	if err != nil {
		t.Fatalf("SerializeUser() error = %v", err)
	}
	if got != want {
		t.Errorf("SerializeUser() = %v, want %v", got, want)
	}
}

func TestDeserializeUser(t *testing.T) {
	jsonStr := `{"firstName":"Jane","lastName":"Doe","age":25}`
	want := User{
		FirstName: "Jane",
		LastName:  "Doe",
	}

	got, err := DeserializeUser(jsonStr)
	if err != nil {
		t.Fatalf("DeserializeUser() error = %v", err)
	}
	if got != want {
		t.Errorf("DeserializeUser() = %+v, want %+v", got, want)
	}
}


<!DOCTYPE html>

<meta charset="UTF-8">
<title>练习CSS text-align</title>

这是一个居中对齐的标题

这是一个右对齐的段落。

这是一个左对齐的引用。

Create a web page, with the following requirements:
1. All headings (<h1> tags) should be center aligned.
2. All paragraphs (<p> tags) should be right aligned.
3. All block quotes (<blockquote> tags) should be left aligned.
4. Write the corresponding CSS to achieve these alignment effects.

CSS writing requirements
1. Use class selectors to set styles for each element, the class name should be identical to the element name.
2. Write CSS in the <style> tag within the <head> section of the HTML page.
3. Make sure to format your CSS code, maintain a good indentation, which is usually two spaces, one space between the property and the value, and end the property with a semicolon.
4. The HTML structure provided in the example is for reference only, please adjust according to the actual situation.

The answer should return HTML and CSS code together.
Please wrap the answering code with markdown code block format, e.g.
```html
[code]
```

import { describe, expect, it, beforeAll, afterAll } from '@jest/globals';
import puppeteer from 'puppeteer';

describe('页面文本对齐测试', () => {
  let browser;
  let page;

  beforeAll(async () => {
    browser = await puppeteer.launch({args: ['--no-sandbox']});
    page = await browser.newPage();
    await page.setContent(`#<INSERT>`);
  });

  afterAll(() => {
    browser.close();
  });

  test('标题 <h1> 应该居中对齐', async () => {
    const textAlign = await page.evaluate(() => {
      const h1 = document.querySelector('.h1');
      return getComputedStyle(h1).textAlign;
    });
    expect(textAlign).toBe('center');
  });

  test('段落 <p> 应该右对齐', async () => {
    const textAlign = await page.evaluate(() => {
      const p = document.querySelector('.p');
      return getComputedStyle(p).textAlign;
    });
    expect(textAlign).toBe('right');
  });

  test('引用 <blockquote> 应该左对齐', async () => {
    const textAlign = await page.evaluate(() => {
      const blockquote = document.querySelector('.blockquote');
      return getComputedStyle(blockquote).textAlign;
    });
    expect(textAlign).toBe('left');
  });
});


import (
	"math"
)

func MinSubArrayLen(s int, nums []int) int {
    n := len(nums)
    if n == 0 {
        return 0
    }
    ans := math.MaxInt32
    start, end := 0, 0
    sum := 0
    for end < n {
        sum += nums[end]
        for sum >= s {
            ans = min(ans, end - start + 1)
            sum -= nums[start]
            start++
        }
        end++
    }
    if ans == math.MaxInt32 {
        return 0
    }
    return ans
}

func min(x, y int) int {
    if x < y {
        return x
    }
    return y
}

Given an array of n positive integers and a positive integer target.
Find the length of the smallest continuous subarray [numsl, numsl+1, ..., numsr-1, numsr] in the array such that its sum is greater than or equal to target, and return its length. If there is no such subarray, return 0.
Please answer in Go language and implement the function `func MinSubArrayLen(s int, nums []int) int`

package main
import "testing"

#<INSERT>

func TestMinSubArrayLen(t *testing.T) {
	target := 7
	numbList := []int{2, 3, 1, 2, 4, 3}
	expect := 2
	result := MinSubArrayLen(target, numbList)

	if result == expect {
		t.Log("get intersect success.")
	} else {
		t.Errorf("not equal with expected, expected: %v actual: %v", expect, result)
		t.FailNow()
	}
}


<!DOCTYPE html>

<meta charset="UTF-8">
<title>CSS text-align 练习</title>

标题居中对齐

段落文字右对齐。

引用文字左对齐。

You need to create an HTML page that includes multiple <h1>, <p> and <blockquote> tags. Please set the following CSS styles:
1. The text in all <h1> tags should be center-aligned.
2. The text in all <p> tags should be right-aligned.
3. The text in all <blockquote> tags should be left-aligned.

CSS writing requirements:
1. Use class selectors to set the corresponding styles, with the class names being the same as the element names. CSS rules should conform to the following format:
2. Use two spaces for indentation.
3. Use a space after the selector and property name.
4. Use a space after the colon following the property name.
5. Use a semicolon after each rule.
6. There should be a blank line between rule sets.

Please return the combined HTML and CSS code in your answer.
Please wrap the answering code with markdown code block format, e.g.
```html
[code]
```

import { describe, expect, it, beforeAll, afterAll } from '@jest/globals';
import puppeteer from 'puppeteer';

describe('CSS text-align 属性测试', () => {
  let browser;
  let page;

  beforeAll(async () => {
    // 启动浏览器并打开新页面
    browser = await puppeteer.launch({args: ['--no-sandbox']});
    page = await browser.newPage();
    // 设置HTML内容
    await page.setContent(`#<INSERT>`);
  });

  afterAll(async () => {
    // 关闭浏览器
    await browser.close();
  });

  test('h1标签是否居中对齐', async () => {
    const textAlign = await page.$eval('.h1', el => getComputedStyle(el).textAlign);
    expect(textAlign).toBe('center');
  });

  test('p标签是否右对齐', async () => {
    const textAlign = await page.$eval('.p', el => getComputedStyle(el).textAlign);
    expect(textAlign).toBe('right');
  });

  test('blockquote标签是否左对齐', async () => {
    const textAlign = await page.$eval('.blockquote', el => getComputedStyle(el).textAlign);
    expect(textAlign).toBe('left');
  });
});


import (
    "sort"
)

type User struct {
    FirstName string
    LastName  string
}

func SortUsersByLastName(users []User) {
    sort.SliceStable(users, func(i, j int) bool {
        if users[i].LastName == users[j].LastName {
            return users[i].FirstName < users[j].FirstName
        }
        return users[i].LastName < users[j].LastName
    })
}

There is a user struct User with two fields: FirstName and LastName. Write a function SortUsersByLastName in golang that accepts a slice of User and sorts it by the LastName field. If LastName is the same, then further sort by FirstName.
```go
type User struct {
    FirstName string
    LastName  string
}
```

package main

import (
    "reflect"
    "testing"
)
#<INSERT>

func TestSortUsersByLastName(t *testing.T) {
    users := []User{
        {"John", "Doe"},
        {"Jane", "Smith"},
        {"Alice", "Doe"},
    }

    expected := []User{
        {"Alice", "Doe"},
        {"John", "Doe"},
        {"Jane", "Smith"},
    }

    SortUsersByLastName(users)

    if !reflect.DeepEqual(users, expected) {
        t.Errorf("SortUsersByLastName() = %v; want %v", users, expected)
    }
}


import (
    "bytes"
)

type LinkCard struct {
	Title   string
	Content string
	URL     string
}

func GenerateLinkCard(lc LinkCard, tmplStr string) (string, error) {
	tmpl, err := template.New("linkCard").Parse(tmplStr)
	if err != nil {
		return "", err
	}

	var result bytes.Buffer
	err = tmpl.Execute(&result, lc)
	if err != nil {
		return "", err
	}

	return result.String(), nil
}

Write code in Go language to implement a function that generates a message card with a link.
Requirements:
Define a structure named LinkCard, which includes Title, Content, and URL fields, respectively representing the card title, content, and jump link.
Write a function named GenerateLinkCard that accepts a LinkCard object and a template string, and then returns a message card string based on the template and object.

package main

import (
	"text/template"
	"testing"
)

#<INSERT>

func TestGenerateLinkCard(t *testing.T) {
	card := LinkCard{
		Title:   "通知",
		Content: "您有工单待处理，请前往处理",
		URL:     "https://xxx.com",
	}
	templateStr := "{{.Title}}\n{{.Content}}\nMore info: {{.URL}}"

	want := "通知\n您有工单待处理，请前往处理\nMore info: https://xxx.com"

	got, err := GenerateLinkCard(card, templateStr)
	if err != nil {
		t.Fatalf("GenerateLinkCard() error = %v", err)
	}
	if got != want {
		t.Errorf("GenerateLinkCard() = %v, want %v", got, want)
	}
}


Please answer in Go language. There is code below, and we want to return numbers 1 to 10, but there is a problem with this code. Please identify and correct it.
```go
import (
	"sync"
)

func debug_goroutine() sync.Map {
	var set sync.Map
	var wg sync.WaitGroup
	for i := 0; i < 10; i++ {
		wg.Add(1)
		go func(i int) {
			set.Store(i, true)
			wg.Done()
		}(i)
	}
	wg.Wait()
	return set
}
```

package main

import (
    "fmt"
    "testing"
)

#<INSERT>
func Test_DebugPrint(t *testing.T) {
	fmt.Print("hh")
	result := debug_goroutine()
	for i := 0; i < 10; i++ {
		_, ok := result.Load(i)
		if !ok {
			t.FailNow()
		}
	}
}


const timeLayout = "2006年1月2日 15:04:05"

func calculateDurationBetweenTwoTimes(startTimeStr, endTimeStr string) (time.Duration, error) {
    startTime, err := time.Parse(timeLayout, startTimeStr)
    if err != nil {
        return 0, err
    }
    endTime, err := time.Parse(timeLayout, endTimeStr)
    if err != nil {
        return 0, err
    }
    return endTime.Sub(startTime), nil
}

Implement a function in Golang, calculateDurationBetweenTwoTimes, that accepts two time strings and returns the interval between them. The string format is: March 18, 2024 11:07:18

package main
import (
    "testing"
    "time"
)

#<INSERT>

func TestCalculateDurationBetweenTwoTimes(t *testing.T) {
    tests := []struct {
        startTimeStr string
        endTimeStr   string
        expected     time.Duration
        expectError  bool
    }{
        {
            startTimeStr: "2024年3月18日 11:07:18",
            endTimeStr:   "2024年3月19日 12:08:19",
            expected:     25*time.Hour + 1*time.Minute + 1*time.Second,
            expectError:  false,
        },
        {
            startTimeStr: "2024年3月18日 11:07:18",
            endTimeStr:   "不正确的时间格式",
            expected:     0,
            expectError:  true,
        },
    }

    for _, test := range tests {
        duration, err := calculateDurationBetweenTwoTimes(test.startTimeStr, test.endTimeStr)
        if test.expectError {
            if err == nil {
                t.Errorf("Expected an error for start time %s and end time %s", test.startTimeStr, test.endTimeStr)
            }
        } else {
            if err != nil {
                t.Errorf("Did not expect an error for start time %s and end time %s: %v", test.startTimeStr, test.endTimeStr, err)
            }
            if duration != test.expected {
                t.Errorf("Expected duration %v, but got %v for start time %s and end time %s", test.expected, duration, test.startTimeStr, test.endTimeStr)
            }
        }
    }
}


import (
	"sync"
)
func DebugSyncMap() string {
	var m sync.Map
	m.Store("address", map[string]string{"province": "Jiangsu", "city": "Nanjing"})
	v, _ := m.Load("address")
	return v.(map[string]string)["province"]
}

For the following code, determine if there are any issues, and if so, please show the corresponding correct code.
```go
import (
	"sync"
)
func DebugSyncMap() string {
	var m sync.Map
	m.Store("address", map[string]string{"province": "Jiangsu", "city": "Nanjing"})
	v, _ := m.Load("address")
	return v["province"]
}
```

package main
import (
	"testing"
)
#<INSERT>
func TestDebugSyncMap(t *testing.T) {
	actual := DebugSyncMap()
	expected := "Jiangsu"
	if actual != expected {
		t.Errorf("not equal with expected expected %v actual %v", expected, actual)
		t.FailNow()
	} else {
		t.Log("get data succeed")
	}
}


import (
    "sort"
)

func FrequencySort(nums []int) []int {
	cnt := map[int]int{}
	for _, x := range nums {
		cnt[x]++
	}
	sort.Slice(nums, func(i, j int) bool {
		a, b := nums[i], nums[j]
		return cnt[a] < cnt[b] || cnt[a] == cnt[b] && a > b
	})
	return nums
}

Enter an integer array nums, and please use Go to sort the array in ascending order based on the frequency of each value. If there are multiple values with the same frequency, sort them in descending order based on the value itself.
Implement the function `func FrequencySort(nums []int) []int`

package main
import (
    "testing"
    "encoding/json"
)

#<INSERT>

func TestFrequencySort(t *testing.T) {
	nums := []int{2, 3, 1, 3, 2}
	expect := "[1,3,3,2,2]"
	val, _ := json.Marshal(FrequencySort(nums))
	result := string(val)

	if result == expect {
		t.Log("get intersect success.")
	} else {
		t.Errorf("not equal with expected, expected: %v actual: %v", expect, result)
		t.FailNow()
	}
}


func countLines(filePath string) (int, error) {
	file, err := os.Open(filePath)
	if err != nil {
		return 0, err
	}
	defer file.Close()

	scanner := bufio.NewScanner(file)
	lineCount := 0
	for scanner.Scan() {
		lineCount++
	}
	if err := scanner.Err(); err != nil {
		return 0, err
	}
	return lineCount, nil
}

Implement a function using Go, which accepts a file path as a parameter, and outputs the number of lines in the file.

package main

import (
	"bufio"
	"os"
	"testing"
)

#<INSERT>

func setup(t *testing.T) (string, func()) {
	t.Helper()
	tmpFile, err := os.CreateTemp("", "linecounter")
	if err != nil {
		t.Fatalf("Unable to create temporary file: %v", err)
	}
	content := []byte("Line 1\nLine 2\nLine 3\n")
	if _, err := tmpFile.Write(content); err != nil {
		os.Remove(tmpFile.Name())
		t.Fatalf("Unable to write to temporary file: %v", err)
	}
	if err := tmpFile.Close(); err != nil {
		os.Remove(tmpFile.Name())
		t.Fatalf("Unable to close temporary file: %v", err)
	}

	return tmpFile.Name(), func() {
		os.Remove(tmpFile.Name())
	}
}

func TestCountLines(t *testing.T) {
	filePath, teardown := setup(t)
	defer teardown()

	want := 3
	got, err := countLines(filePath)
	if err != nil {
		t.Errorf("countLines() error = %v", err)
	}
	if got != want {
		t.Errorf("countLines() = %d, want %d", got, want)
	}
}


import (
	"fmt"
)
func channelDebug() int {
	ch1 := make(chan int)
	go func() {
		fmt.Println(<-ch1)
	}()
	ch1 <- 5
	return 10
}

Below is a piece of Golang code, please confirm the running result of this code. If there are any issues, please point them out and fix them.
```go
func channelDebug() int {
	ch1 := make(chan int)
	go fmt.Println(<-ch1)
	ch1 <- 5
	return 10
}
```

package main
import "testing"
#<INSERT>
func TestChannelDebug(t *testing.T) {
	actual := channelDebug()
	expected := 10
	if actual != expected {
		t.Errorf("not equal with expected %v actual %v", expected, actual)
		t.FailNow()
	}

}


import (
    "regexp"
)

func ExtractErrorMessages(log string) []string {
	re := regexp.MustCompile(`(?m)^ERROR:.*$`)
	matches := re.FindAllString(log, -1)
	return matches
}

Implement a function named ExtractErrorMessages using Go language, which accepts a multi-line log string and returns a slice of all error messages.
Assume that the error message starts with "ERROR:" and each error message occupies one line.

package main

import (
	"reflect"
	"testing"
)

#<INSERT>

func TestExtractErrorMessages(t *testing.T) {
	logs := `INFO: Starting the application...
ERROR: Failed to load configuration.
INFO: Trying to reconnect...
ERROR: Connection timed out.
INFO: Process completed.`

	want := []string{
		"ERROR: Failed to load configuration.",
		"ERROR: Connection timed out.",
	}

	got := ExtractErrorMessages(logs)

	if !reflect.DeepEqual(got, want) {
		t.Errorf("ExtractErrorMessages() = %v, want %v", got, want)
	}
}


func debug_new_map() {
	mp := make(map[int]int)
	f := func(m map[int]int) {
		m[10] = 10
	}
	f(mp)
}

Please answer in Go language. The following code attempts to create and assign a map but fails. Please correct it.
```go
func debug_new_map() {
	mp := new(map[int]int)
	f := func(m map[int]int) {
		m[10] = 10
	}
	f(*mp)
}
```

package main

import "testing"
#<INSERT>

func Test_DebugNewMap(t *testing.T) {
	debug_new_map()
}


func debug_recover() {
	defer func() {
		recover()
	}()
	panic(1)
}

Please answer in Go language. Here is the code that attempts to catch a panic but is unsuccessful. Please modify the code to accomplish the requirement.
```go
func debug_recover() {
	defer func() {
		func() { recover() }()
	}()
	panic(1)
}
```

// Test
package main
import "testing"
#<INSERT>
func Test_DebugRecover(t *testing.T) {
	debug_recover()
}


function find_closest_elements($numbers) {
    exit(0);
}

Please implement the following code in PHP, with the function signature `function find_closest_elements($numbers)`
Note:
1. Only implement the target function and include necessary packages, do not generate any other code

```python
from typing import List, Tuple

def find_closest_elements(numbers: List[float]) -> Tuple[float, float]:

    closest_pair = None
    distance = None

    for idx, elem in enumerate(numbers):
        for idx2, elem2 in enumerate(numbers):
            if idx != idx2:
                if distance is None:
                    distance = abs(elem - elem2)
                    closest_pair = tuple(sorted([elem, elem2]))
                else:
                    new_distance = abs(elem - elem2)
                    if new_distance < distance:
                        distance = new_distance
                        closest_pair = tuple(sorted([elem, elem2]))

    return closest_pair

```

#<INSERT>
function candidate(...$args) {
    return find_closest_elements(...$args);
}

function test(): void {
    if (candidate(array(1.0, 2.0, 3.9, 4.0, 5.0, 2.2)) !== array(3.9, 4.0)) { throw new Exception("Test failed!"); }
    if (candidate(array(1.0, 2.0, 5.9, 4.0, 5.0)) !== array(5.0, 5.9)) { throw new Exception("Test failed!"); }
    if (candidate(array(1.0, 2.0, 3.0, 4.0, 5.0, 2.2)) !== array(2.0, 2.2)) { throw new Exception("Test failed!"); }
    if (candidate(array(1.0, 2.0, 3.0, 4.0, 5.0, 2.0)) !== array(2.0, 2.0)) { throw new Exception("Test failed!"); }
    if (candidate(array(1.1, 2.2, 3.1, 4.1, 5.1)) !== array(2.2, 3.1)) { throw new Exception("Test failed!"); }
}

test();


function is_nested($string) {
    exit(0);
}

Please convert the following code to PHP, with the function signature `function is_nested($string)`
Note:
1. Only implement the target function and import necessary packages, do not generate other code

```python

def is_nested(string):

    opening_bracket_index = []
    closing_bracket_index = []
    for i in range(len(string)):
        if string[i] == '[':
            opening_bracket_index.append(i)
        else:
            closing_bracket_index.append(i)
    closing_bracket_index.reverse()
    cnt = 0
    i = 0
    l = len(closing_bracket_index)
    for idx in opening_bracket_index:
        if i < l and idx < closing_bracket_index[i]:
            cnt += 1
            i += 1
    return cnt >= 2

```

#<INSERT>
function candidate(...$args) {
    return is_nested(...$args);
}

function test(): void {
    if (candidate("[[]]") !== true) { throw new Exception("Test failed!"); }
    if (candidate("[]]]]]]][[[[[]") !== false) { throw new Exception("Test failed!"); }
    if (candidate("[][]") !== false) { throw new Exception("Test failed!"); }
    if (candidate("[]") !== false) { throw new Exception("Test failed!"); }
    if (candidate("[[[[]]]]") !== true) { throw new Exception("Test failed!"); }
    if (candidate("[]]]]]]]]]]") !== false) { throw new Exception("Test failed!"); }
    if (candidate("[][][[]]") !== true) { throw new Exception("Test failed!"); }
    if (candidate("[[]") !== false) { throw new Exception("Test failed!"); }
    if (candidate("[]]") !== false) { throw new Exception("Test failed!"); }
    if (candidate("[[]][[") !== true) { throw new Exception("Test failed!"); }
    if (candidate("[[][]]") !== true) { throw new Exception("Test failed!"); }
    if (candidate("") !== false) { throw new Exception("Test failed!"); }
    if (candidate("[[[[[[[[") !== false) { throw new Exception("Test failed!"); }
    if (candidate("]]]]]]]]") !== false) { throw new Exception("Test failed!"); }
}

test();


function even_odd_palindrome($n) {
    exit(0);
}

Please convert the following code to PHP implementation, with the function signature as `function even_odd_palindrome($n)`
Note:
1. Only implement the target function and import necessary packages, do not generate other code

```python

def even_odd_palindrome(n):

    def is_palindrome(n):
        return str(n) == str(n)[::-1]

    even_palindrome_count = 0
    odd_palindrome_count = 0

    for i in range(1, n+1):
        if i%2 == 1 and is_palindrome(i):
                odd_palindrome_count += 1
        elif i%2 == 0 and is_palindrome(i):
            even_palindrome_count += 1
    return (even_palindrome_count, odd_palindrome_count)

```

#<INSERT>
function candidate(...$args) {
    return even_odd_palindrome(...$args);
}

function test(): void {
    if (candidate(123) !== array(8, 13)) { throw new Exception("Test failed!"); }
    if (candidate(12) !== array(4, 6)) { throw new Exception("Test failed!"); }
    if (candidate(3) !== array(1, 2)) { throw new Exception("Test failed!"); }
    if (candidate(63) !== array(6, 8)) { throw new Exception("Test failed!"); }
    if (candidate(25) !== array(5, 6)) { throw new Exception("Test failed!"); }
    if (candidate(19) !== array(4, 6)) { throw new Exception("Test failed!"); }
    if (candidate(9) !== array(4, 5)) { throw new Exception("Test failed!"); }
    if (candidate(1) !== array(0, 1)) { throw new Exception("Test failed!"); }
}

test();


Please convert the following code to PHP, with the function signature `function prime_fib($n)`.
Note:
1. Only implement the target function and include necessary packages, do not generate other code.

```python

def prime_fib(n: int):

    import math

    def is_prime(p):
        if p < 2:
            return False
        for k in range(2, min(int(math.sqrt(p)) + 1, p - 1)):
            if p % k == 0:
                return False
        return True
    f = [0, 1]
    while True:
        f.append(f[-1] + f[-2])
        if is_prime(f[-1]):
            n -= 1
        if n == 0:
            return f[-1]

```

#<INSERT>
function candidate(...$args) {
    return prime_fib(...$args);
}

function test(): void {
    if (candidate(1) !== 2) { throw new Exception("Test failed!"); }
    if (candidate(2) !== 3) { throw new Exception("Test failed!"); }
    if (candidate(3) !== 5) { throw new Exception("Test failed!"); }
    if (candidate(4) !== 13) { throw new Exception("Test failed!"); }
    if (candidate(5) !== 89) { throw new Exception("Test failed!"); }
    if (candidate(6) !== 233) { throw new Exception("Test failed!"); }
    if (candidate(7) !== 1597) { throw new Exception("Test failed!"); }
    if (candidate(8) !== 28657) { throw new Exception("Test failed!"); }
    if (candidate(9) !== 514229) { throw new Exception("Test failed!"); }
    if (candidate(10) !== 433494437) { throw new Exception("Test failed!"); }
}

test();


function move_one_ball($arr) {
    exit(0);
}

Please convert the following code to PHP with the function signature `function move_one_ball($arr)`.
Note:
1. You only need to implement the target function and import necessary packages. Do not generate other code.

```python

def move_one_ball(arr):

    if len(arr)==0:
      return True
    sorted_array=sorted(arr)
    my_arr=[]

    min_value=min(arr)
    min_index=arr.index(min_value)
    my_arr=arr[min_index:]+arr[0:min_index]
    for i in range(len(arr)):
      if my_arr[i]!=sorted_array[i]:
        return False
    return True

```

#<INSERT>
function candidate(...$args) {
    return move_one_ball(...$args);
}

function test(): void {
    if (candidate(array(3, 4, 5, 1, 2)) !== true) { throw new Exception("Test failed!"); }
    if (candidate(array(3, 5, 10, 1, 2)) !== true) { throw new Exception("Test failed!"); }
    if (candidate(array(4, 3, 1, 2)) !== false) { throw new Exception("Test failed!"); }
    if (candidate(array(3, 5, 4, 1, 2)) !== false) { throw new Exception("Test failed!"); }
    if (candidate(array()) !== true) { throw new Exception("Test failed!"); }
}

test();


function is_sorted($lst) {
    exit(0);
}

Translate the following code into PHP, with the function signature `function is_sorted($lst)`
Note:
1. Only implement the target function and include necessary packages, do not generate additional code

```python

def is_sorted(lst):

    count_digit = dict([(i, 0) for i in lst])
    for i in lst:
        count_digit[i]+=1
    if any(count_digit[i] > 2 for i in lst):
        return False
    if all(lst[i-1] <= lst[i] for i in range(1, len(lst))):
        return True
    else:
        return False

```

#<INSERT>
function candidate(...$args) {
    return is_sorted(...$args);
}

function test(): void {
    if (candidate(array(5)) !== true) { throw new Exception("Test failed!"); }
    if (candidate(array(1, 2, 3, 4, 5)) !== true) { throw new Exception("Test failed!"); }
    if (candidate(array(1, 3, 2, 4, 5)) !== false) { throw new Exception("Test failed!"); }
    if (candidate(array(1, 2, 3, 4, 5, 6)) !== true) { throw new Exception("Test failed!"); }
    if (candidate(array(1, 2, 3, 4, 5, 6, 7)) !== true) { throw new Exception("Test failed!"); }
    if (candidate(array(1, 3, 2, 4, 5, 6, 7)) !== false) { throw new Exception("Test failed!"); }
    if (candidate(array()) !== true) { throw new Exception("Test failed!"); }
    if (candidate(array(1)) !== true) { throw new Exception("Test failed!"); }
    if (candidate(array(3, 2, 1)) !== false) { throw new Exception("Test failed!"); }
    if (candidate(array(1, 2, 2, 2, 3, 4)) !== false) { throw new Exception("Test failed!"); }
    if (candidate(array(1, 2, 3, 3, 3, 4)) !== false) { throw new Exception("Test failed!"); }
    if (candidate(array(1, 2, 2, 3, 3, 4)) !== true) { throw new Exception("Test failed!"); }
    if (candidate(array(1, 2, 3, 4)) !== true) { throw new Exception("Test failed!"); }
}

test();


function order_by_points($nums) {
    exit(0);
}

Please convert the following code to PHP, with the function signature `function order_by_points($nums)`
Note:
1. Only implement the target function and import necessary packages, do not generate other code

```php

function order_by_points($nums) {

    function digits_sum($n) {
        $neg = 1;
        if ($n < 0) {
            $n = -1 * $n;
            $neg = -1;
        }
        $n = array_map('intval', str_split($n));
        $n[0] = $n[0] * $neg;
        return array_sum($n);
    }
    usort($nums, function($a, $b) {
        return digits_sum($a) <=> digits_sum($b);
    });
    return $nums;
}

```


function do_algebra($operator, $operand) {
    exit(0);
}

Please convert the following code to PHP, with the function signature `function do_algebra($operator, $operand)`. Note: Only implement the target function and import necessary packages, do not generate other code.

```php

function do_algebra($operator, $operand) {

    $expression = strval($operand[0]);
    foreach (array_combine($operator, array_slice($operand, 1)) as $oprt => $oprn) {
        $expression .= $oprt . strval($oprn);
    }
    return eval('return '.$expression.';');
}

```

#<INSERT>
function candidate(...$args) {
    return do_algebra(...$args);
}

function test(): void {
    if (candidate(array("**", "*", "+"), array(2, 3, 4, 5)) !== 37) { throw new Exception("Test failed!"); }
    if (candidate(array("+", "*", "-"), array(2, 3, 4, 5)) !== 9) { throw new Exception("Test failed!"); }
    if (candidate(array("//", "*"), array(7, 3, 4)) !== 8) { throw new Exception("Test failed!"); }
}

test();


function rounded_avg($n, $m) {
    exit(0);
}

Please convert the following code to PHP, with the function signature `function rounded_avg($n, $m)`.
Note:
1. Only implement the target function and import necessary packages, do not generate any other code.
```python

def rounded_avg(n, m):

    if m < n:
        return -1
    summation = 0
    for i in range(n, m+1):
        summation += i
    return bin(round(summation/(m - n + 1)))

```

#<INSERT>
function candidate(...$args) {
    return rounded_avg(...$args);
}

function test(): void {
    if (candidate(1, 5) !== "0b11") { throw new Exception("Test failed!"); }
    if (candidate(7, 13) !== "0b1010") { throw new Exception("Test failed!"); }
    if (candidate(964, 977) !== "0b1111001010") { throw new Exception("Test failed!"); }
    if (candidate(996, 997) !== "0b1111100100") { throw new Exception("Test failed!"); }
    if (candidate(560, 851) !== "0b1011000010") { throw new Exception("Test failed!"); }
    if (candidate(185, 546) !== "0b101101110") { throw new Exception("Test failed!"); }
    if (candidate(362, 496) !== "0b110101101") { throw new Exception("Test failed!"); }
    if (candidate(350, 902) !== "0b1001110010") { throw new Exception("Test failed!"); }
    if (candidate(197, 233) !== "0b11010111") { throw new Exception("Test failed!"); }
    if (candidate(7, 5) !== -1) { throw new Exception("Test failed!"); }
    if (candidate(5, 1) !== -1) { throw new Exception("Test failed!"); }
    if (candidate(5, 5) !== "0b101") { throw new Exception("Test failed!"); }
}

test();


function filter_integers($values) {
    exit(0);
}

Please convert the following code to PHP, with the function signature `function filter_integers($values)`
Note:
1. Only implement the target function and include necessary packages, do not generate additional code

```python
from typing import List, Any

def filter_integers(values: List[Any]) -> List[int]:

    return [x for x in values if isinstance(x, int)]

```

#<INSERT>
function candidate(...$args) {
    return filter_integers(...$args);
}

function test(): void {
    if (candidate(array()) !== array()) { throw new Exception("Test failed!"); }
    if (candidate(array(4, array(), array(), 23.2, 9, "adasd")) !== array(4, 9)) { throw new Exception("Test failed!"); }
    if (candidate(array(3, "c", 3, 3, "a", "b")) !== array(3, 3, 3)) { throw new Exception("Test failed!"); }
}

test();


function double_the_difference($lst) {
    exit(0);
}

Please implement the following code using PHP, with the function signature `function double_the_difference($lst)`.
Note:
1. Only the target function needs to be implemented, along with importing the necessary packages, if any. Do not generate other code.

```python

def double_the_difference(lst):

    return sum([i**2 for i in lst if i > 0 and i%2!=0 and "." not in str(i)])

```

#<INSERT>
function candidate(...$args) {
    return double_the_difference(...$args);
}

function test(): void {
    if (candidate(array()) !== 0) { throw new Exception("Test failed!"); }
    if (candidate(array(5.0, 4.0)) !== 25) { throw new Exception("Test failed!"); }
    if (candidate(array(0.1, 0.2, 0.3)) !== 0) { throw new Exception("Test failed!"); }
    if (candidate(array(-10.0, -20.0, -30.0)) !== 0) { throw new Exception("Test failed!"); }
    if (candidate(array(-1.0, -2.0, 8.0)) !== 0) { throw new Exception("Test failed!"); }
    if (candidate(array(0.2, 3.0, 5.0)) !== 34) { throw new Exception("Test failed!"); }
    if (candidate(array(-9.0, -7.0, -5.0, -3.0, -1.0, 1.0, 3.0, 5.0, 7.0, 9.0)) !== 165) { throw new Exception("Test failed!"); }
}

test();


function max_fill($grid, $capacity) {
    exit(0);
}

Please convert the following code into PHP, with the function signature `function max_fill($grid, $capacity)`
Note:
1. Only implement the target function and import necessary packages, do not generate other code

```python

def max_fill(grid, capacity):
    import math

    return sum([math.ceil(sum(arr)/capacity) for arr in grid])

```

#<INSERT>
function candidate(...$args) {
    return max_fill(...$args);
}

function test(): void {
    if (candidate(array(array(0, 0, 1, 0), array(0, 1, 0, 0), array(1, 1, 1, 1)), 1) !== 6) { throw new Exception("Test failed!"); }
    if (candidate(array(array(0, 0, 1, 1), array(0, 0, 0, 0), array(1, 1, 1, 1), array(0, 1, 1, 1)), 2) !== 5) { throw new Exception("Test failed!"); }
    if (candidate(array(array(0, 0, 0), array(0, 0, 0)), 5) !== 0) { throw new Exception("Test failed!"); }
    if (candidate(array(array(1, 1, 1, 1), array(1, 1, 1, 1)), 2) !== 4) { throw new Exception("Test failed!"); }
    if (candidate(array(array(1, 1, 1, 1), array(1, 1, 1, 1)), 9) !== 2) { throw new Exception("Test failed!"); }
}

test();


function maximum($arr, $k) {
    exit(0);
}

Please translate the following code into PHP, with the function signature `function maximum($arr, $k)`.
Note:
1. Only implement the target function and import the necessary packages. Do not generate any other code.

```python

def maximum(arr, k):

    if k == 0:
        return []
    arr.sort()
    ans = arr[-k:]
    return ans

```

#<INSERT>
function candidate(...$args) {
    return maximum(...$args);
}

function test(): void {
    if (candidate(array(-3, -4, 5), 3) !== array(-4, -3, 5)) { throw new Exception("Test failed!"); }
    if (candidate(array(4, -4, 4), 2) !== array(4, 4)) { throw new Exception("Test failed!"); }
    if (candidate(array(-3, 2, 1, 2, -1, -2, 1), 1) !== array(2)) { throw new Exception("Test failed!"); }
    if (candidate(array(123, -123, 20, 0, 1, 2, -3), 3) !== array(2, 20, 123)) { throw new Exception("Test failed!"); }
    if (candidate(array(-123, 20, 0, 1, 2, -3), 4) !== array(0, 1, 2, 20)) { throw new Exception("Test failed!"); }
    if (candidate(array(5, 15, 0, 3, -13, -8, 0), 7) !== array(-13, -8, 0, 0, 3, 5, 15)) { throw new Exception("Test failed!"); }
    if (candidate(array(-1, 0, 2, 5, 3, -10), 2) !== array(3, 5)) { throw new Exception("Test failed!"); }
    if (candidate(array(1, 0, 5, -7), 1) !== array(5)) { throw new Exception("Test failed!"); }
    if (candidate(array(4, -4), 2) !== array(-4, 4)) { throw new Exception("Test failed!"); }
    if (candidate(array(-10, 10), 2) !== array(-10, 10)) { throw new Exception("Test failed!"); }
    if (candidate(array(1, 2, 3, -23, 243, -400, 0), 0) !== array()) { throw new Exception("Test failed!"); }
}

test();


function derivative($xs) {
    exit(0);
}

Please translate the following code into PHP, with the function signature as `function derivative($xs)`.
Note:
1. Only implement the target function and import the necessary packages, do not generate other code.

```python

def derivative(xs: list):

    return [(i * x) for i, x in enumerate(xs)][1:]

```

#<INSERT>
function candidate(...$args) {
    return derivative(...$args);
}

function test(): void {
    if (candidate(array(3, 1, 2, 4, 5)) !== array(1, 4, 12, 20)) { throw new Exception("Test failed!"); }
    if (candidate(array(1, 2, 3)) !== array(2, 6)) { throw new Exception("Test failed!"); }
    if (candidate(array(3, 2, 1)) !== array(2, 2)) { throw new Exception("Test failed!"); }
    if (candidate(array(3, 2, 1, 0, 4)) !== array(2, 2, 0, 16)) { throw new Exception("Test failed!"); }
    if (candidate(array(1)) !== array()) { throw new Exception("Test failed!"); }
}

test();


Translate the following code into PHP, with the function signature `function unique($l)`
Note:
1. Only implement the target function and import the necessary packages, do not generate additional code

```python

def unique(l: list):

    return sorted(list(set(l)))

```

#<INSERT>
function candidate(...$args) {
    return unique(...$args);
}

function test(): void {
    if (candidate(array(5, 3, 5, 2, 3, 3, 9, 0, 123)) !== array(0, 2, 3, 5, 9, 123)) { throw new Exception("Test failed!"); }
}

test();


class Vigenere:
    def __init__(self, chosen_key):
        # 初始化密钥，保留字母和数字，并将字母转换为大写
        self.key = ''.join([char.upper() if char.isalpha() else char for char in chosen_key if char.isalnum()])

    def encrypt(self, text):
        encrypted_output = ""
        j = 0  # 密钥字符的索引
        for char in text:
            if char.isalpha() or char.isdigit():
                key_char = self.key[j % len(self.key)]
                if char.isalpha():
                    shift = ord(key_char.upper()) - ord('A') if key_char.isalpha() else int(key_char)
                    char = char.upper()
                    encrypted_output += chr((ord(char) - ord('A') + shift) % 26 + ord('A'))
                elif char.isdigit():
                    shift = ord(key_char.upper()) - ord('A') if key_char.isalpha() else int(key_char)
                    encrypted_output += str((int(char) + shift) % 10)
                j += 1

        return encrypted_output

The following Vigenere encryption algorithm code only supports letters. Please modify the code so that both the key and the plaintext can support numbers:

class Vigenere:
    def __init__(self, chosen_key):
        # Initialize the key, only retain the letters, and convert them to uppercase
        self.key = ''.join([char.upper() for char in chosen_key if char.isalpha()])

    def encrypt(self, text):
        encrypted_output = ""
        j = 0  # Index of the key character
        for char in text:
            if char.isalpha():
                char = char.upper()
                shift = ord(self.key[j]) - ord('A')
                encrypted_output += chr((ord(char) - ord('A') + shift) % 26 + ord('A'))
                j = (j + 1) % len(self.key)
        return encrypted_output

#<INSERT>

import unittest

class TestVigenere(unittest.TestCase):

    def test_encrypt_standard(self):
        vigenere = Vigenere("KEY")
        result = vigenere.encrypt("HELLO")
        self.assertEqual(result, "RIJVS")  # 假设这是预期加密后的字符串

    def test_encrypt_empty_string(self):
        vigenere = Vigenere("KEY")
        result = vigenere.encrypt("")
        self.assertEqual(result, "")

    def test_encrypt_non_alpha_key(self):
        vigenere = Vigenere("K#Y!")
        result = vigenere.encrypt("HELLO")
        self.assertEqual(result, "RCVJY")  # 确保密钥中的非字母字符被忽略

    def test_encrypt_with_number_in_text(self):
        vigenere = Vigenere("KEY")
        result = vigenere.encrypt("H3LLO!")
        self.assertEqual(result, "R7JVS")

    def test_encrypt_with_long_key(self):
        vigenere = Vigenere("THISISAVERYLONGKEY")
        result = vigenere.encrypt("HELLO")
        self.assertEqual(result, "ALTDW")

if __name__ == '__main__':
    unittest.main()