题解 | #查找输入整数二进制中1的个数#
查找输入整数二进制中1的个数
http://www.nowcoder.com/practice/1b46eb4cf3fa49b9965ac3c2c1caf5ad
方法1： python
while True:
try:
a = int(input())
num = 0
while a:
if a & 0x0001:
num+=1
a = a >>1
print(num)
except:
break方法2：python
while True:
try:
print(bin(int(input())).count('1'))
except:
break