输入一个int型正整数，输出它的二进制形式中数字1的个数

#include<iostream>
#include<string>
using namespace std;
void count_byte(unsigned int x)
{
	unsigned int tmp = 1;
	int countx = 0;
	for (int i = 0; i<32; i++)
	{
		if ((tmp&x) == 1)
		{
			countx++;
		}
		x = x >> 1;
	}
	cout << countx << endl;
}


int main() {

	unsigned int num;
	cin >> num;
	count_byte(num);
	return 0;
}