题解 | 查找输入整数二进制中1的个数

#include<bits/stdc++.h>
using namespace std;

int lowbit(int x) {
	return x & -x;
} 

int main() {
	int n, m;
	cin >> n >> m;
	int cnt = 0;
	while (n) cnt++, n -= lowbit(n);
	cout << cnt << endl;
	cnt = 0;
	while (m) cnt++, m -= lowbit(m);
	cout << cnt << endl;
	return 0;
}