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
https://www.nowcoder.com/practice/1b46eb4cf3fa49b9965ac3c2c1caf5ad
#include <iostream>
using namespace std;
int count(int n) {
int a = 0, b;
while (n > 0) {
b = n % 2;
a += b;
n /= 2;
}
return a;
}
int main() {
int a;
while (cin >> a) {
cout << count(a) << endl;
}
}

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