include<stdio.h>
include<stdlib.h>
int count_bit(unsigned int n)//表示无符号
{
int count = 0;
while (n)
{
if (n % 2 == 1)
{
count++;
}
n = n / 2;
}
return count;
}
//00000000000000000000000000001111
//1+2+4//111
int main()
{
int n = 0;
int ret = 0;
scanf("%d", &n);
ret = count_bit(n);
printf("%d", ret);
system("pause");
return 0;
}
