*CTF 2021 from random import randint import os from flag import flag import sys N=64 key=randint(0,2**N) # print key key=bin(key)[2:].rjust(N,'0') count=0 while True: zeros=[0] # indices of 0 in key for j in range(len(key)): if key[j]=='0': zeros.append(j) p=zeros[randint(0,len(zeros))-1] # pos of 0…