30-days-python-code

bi_num.py

#!/bin/python3

if __name__ == '__main__':
    n = int(input())
    b = bin(n)[2:] # dec to binary
    c = 0
    a = -1
    for i in b:
        if i == '1':
            c += 1
            a = max(a, c)
        else:
            c = 0
    print(a)