题解 | #求int型正整数在内存中存储时1的个数#
求int型正整数在内存中存储时1的个数
https://www.nowcoder.com/practice/440f16e490a0404786865e99c6ad91c9
import sys
import math
def to_statistics(num):
total = 0
# 转化成二进制
b_str = bin(num)
# 去除开头的0b
b_str = b_str[2:]
# 把剩下的数字相加
for c in b_str:
total += int(c)
return total
if __name__ == '__main__':
num = int(sys.stdin.readline().strip())
total = to_statistics(num)
print(total)
