import numpy as np
import time


start_time = time.time()

arr = np.arange(15).reshape(3,5)
arr = arr * 3
print(arr)

elapsed_time = time.time() - start_time

print("Elapsed: " + str(elapsed_time * 1000) + "ms")

9bc33da74517384ed0fc293ffcaaac4edc85fa2a
<mask token>

<mask token>
print(arr)
<mask token>
print('Elapsed: ' + str(elapsed_time * 1000) + 'ms')

<mask token>
start_time = time.time()
arr = np.arange(15).reshape(3, 5)
arr = arr * 3
print(arr)
elapsed_time = time.time() - start_time
print('Elapsed: ' + str(elapsed_time * 1000) + 'ms')

import numpy as np
import time
start_time = time.time()
arr = np.arange(15).reshape(3, 5)
arr = arr * 3
print(arr)
elapsed_time = time.time() - start_time
print('Elapsed: ' + str(elapsed_time * 1000) + 'ms')

import numpy as np
import time


start_time = time.time()

arr = np.arange(15).reshape(3,5)
arr = arr * 3
print(arr)

elapsed_time = time.time() - start_time

print("Elapsed: " + str(elapsed_time * 1000) + "ms")
