import collections
import time
import random
import datetime

class Task():
    
    def __init__(self, file):
        self.file = file
        self.duration = 0
        self.creation_date = datetime.datetime.now()
    
    def run(self):
        self.duration = random.random()*100
        time.sleep(self.duration)


class TaskQueue():
    
    def __init__(self):
        self.number_of_tasks = 0
        self.tasks_count = 0        
        self.queue           = collections.deque([]) 
        self.cum_task_duration = 0.0
        self.avg_task_duration = 0.0
        self.cum_time_in_queue = 0.0
        self.avg_time_in_queue = 0.0
        
    def add_task(self, task):
        self.number_of_tasks += 1
        self.tasks_count += 1     
        self.cum_task_duration += task.duration 
        self.avg_task_duration = self.cum_task_duration / self.tasks_count
        self.queue.append(task)
        
    def take_task(self):
        if len(self.queue) > 0:
            task = self.queue.popleft()
            time_in_queue = (datetime.datetime.now() - task.creation_date).total_seconds()
            self.cum_time_in_queue += time_in_queue
            self.avg_time_in_queue = self.cum_time_in_queue / self.tasks_count
            self.number_of_tasks -= 1            
            return task
        
    def get_num_tasks(self):
        return self.number_of_tasks
525efe152a27a9ed2d4c7d1e32d0e0025210d265
<mask token>


class TaskQueue:

    def __init__(self):
        self.number_of_tasks = 0
        self.tasks_count = 0
        self.queue = collections.deque([])
        self.cum_task_duration = 0.0
        self.avg_task_duration = 0.0
        self.cum_time_in_queue = 0.0
        self.avg_time_in_queue = 0.0

    def add_task(self, task):
        self.number_of_tasks += 1
        self.tasks_count += 1
        self.cum_task_duration += task.duration
        self.avg_task_duration = self.cum_task_duration / self.tasks_count
        self.queue.append(task)

    def take_task(self):
        if len(self.queue) > 0:
            task = self.queue.popleft()
            time_in_queue = (datetime.datetime.now() - task.creation_date
                ).total_seconds()
            self.cum_time_in_queue += time_in_queue
            self.avg_time_in_queue = self.cum_time_in_queue / self.tasks_count
            self.number_of_tasks -= 1
            return task

    def get_num_tasks(self):
        return self.number_of_tasks

<mask token>


class Task:
    <mask token>
    <mask token>


class TaskQueue:

    def __init__(self):
        self.number_of_tasks = 0
        self.tasks_count = 0
        self.queue = collections.deque([])
        self.cum_task_duration = 0.0
        self.avg_task_duration = 0.0
        self.cum_time_in_queue = 0.0
        self.avg_time_in_queue = 0.0

    def add_task(self, task):
        self.number_of_tasks += 1
        self.tasks_count += 1
        self.cum_task_duration += task.duration
        self.avg_task_duration = self.cum_task_duration / self.tasks_count
        self.queue.append(task)

    def take_task(self):
        if len(self.queue) > 0:
            task = self.queue.popleft()
            time_in_queue = (datetime.datetime.now() - task.creation_date
                ).total_seconds()
            self.cum_time_in_queue += time_in_queue
            self.avg_time_in_queue = self.cum_time_in_queue / self.tasks_count
            self.number_of_tasks -= 1
            return task

    def get_num_tasks(self):
        return self.number_of_tasks

<mask token>


class Task:
    <mask token>

    def run(self):
        self.duration = random.random() * 100
        time.sleep(self.duration)


class TaskQueue:

    def __init__(self):
        self.number_of_tasks = 0
        self.tasks_count = 0
        self.queue = collections.deque([])
        self.cum_task_duration = 0.0
        self.avg_task_duration = 0.0
        self.cum_time_in_queue = 0.0
        self.avg_time_in_queue = 0.0

    def add_task(self, task):
        self.number_of_tasks += 1
        self.tasks_count += 1
        self.cum_task_duration += task.duration
        self.avg_task_duration = self.cum_task_duration / self.tasks_count
        self.queue.append(task)

    def take_task(self):
        if len(self.queue) > 0:
            task = self.queue.popleft()
            time_in_queue = (datetime.datetime.now() - task.creation_date
                ).total_seconds()
            self.cum_time_in_queue += time_in_queue
            self.avg_time_in_queue = self.cum_time_in_queue / self.tasks_count
            self.number_of_tasks -= 1
            return task

    def get_num_tasks(self):
        return self.number_of_tasks

<mask token>


class Task:

    def __init__(self, file):
        self.file = file
        self.duration = 0
        self.creation_date = datetime.datetime.now()

    def run(self):
        self.duration = random.random() * 100
        time.sleep(self.duration)


class TaskQueue:

    def __init__(self):
        self.number_of_tasks = 0
        self.tasks_count = 0
        self.queue = collections.deque([])
        self.cum_task_duration = 0.0
        self.avg_task_duration = 0.0
        self.cum_time_in_queue = 0.0
        self.avg_time_in_queue = 0.0

    def add_task(self, task):
        self.number_of_tasks += 1
        self.tasks_count += 1
        self.cum_task_duration += task.duration
        self.avg_task_duration = self.cum_task_duration / self.tasks_count
        self.queue.append(task)

    def take_task(self):
        if len(self.queue) > 0:
            task = self.queue.popleft()
            time_in_queue = (datetime.datetime.now() - task.creation_date
                ).total_seconds()
            self.cum_time_in_queue += time_in_queue
            self.avg_time_in_queue = self.cum_time_in_queue / self.tasks_count
            self.number_of_tasks -= 1
            return task

    def get_num_tasks(self):
        return self.number_of_tasks

import collections
import time
import random
import datetime

class Task():
    
    def __init__(self, file):
        self.file = file
        self.duration = 0
        self.creation_date = datetime.datetime.now()
    
    def run(self):
        self.duration = random.random()*100
        time.sleep(self.duration)


class TaskQueue():
    
    def __init__(self):
        self.number_of_tasks = 0
        self.tasks_count = 0        
        self.queue           = collections.deque([]) 
        self.cum_task_duration = 0.0
        self.avg_task_duration = 0.0
        self.cum_time_in_queue = 0.0
        self.avg_time_in_queue = 0.0
        
    def add_task(self, task):
        self.number_of_tasks += 1
        self.tasks_count += 1     
        self.cum_task_duration += task.duration 
        self.avg_task_duration = self.cum_task_duration / self.tasks_count
        self.queue.append(task)
        
    def take_task(self):
        if len(self.queue) > 0:
            task = self.queue.popleft()
            time_in_queue = (datetime.datetime.now() - task.creation_date).total_seconds()
            self.cum_time_in_queue += time_in_queue
            self.avg_time_in_queue = self.cum_time_in_queue / self.tasks_count
            self.number_of_tasks -= 1            
            return task
        
    def get_num_tasks(self):
        return self.number_of_tasks