Please only use python and write comments for me to learn,thanks

Please use broadcasting or other methods to speed up the following simulation codes. You need to roughly speed it up 5 times as the minimum requirement. (Generally speaking, there are no restrictions on how to speed up the program, as long as you are dealing with the same problem illustrated by the codes below). You may want to specify size in the function np. random. randint() to get an array of random integers. import numpy as np import time \#only one bullet in the gun