C :

#include<stdio.h>
int main()
{
    int n,m;
    scanf("%d",&m);
    while(m --)
    {
        int sum = 0;
        scanf("%d",&n);
        while(n)
        {
            sum += n % 2;
            n /= 2;
        }
        printf("%d\n",sum);
    }
    return 0;
}

C++ :

#include <stdio.h>

int main()
{
	int n;
	scanf("%d",&n);
	while(n--)
	{
		int m,a = 0,b = 0;
		scanf("%d",&m);
		while(m)
		{
			if(m%2 == 0)
				a++;
			else
				b++;
			m = m/2;
		}
		printf("%d %d\n",b,a);
	}
	return 0;
}