Count Set Bits in an Integer

Code

#include <stdio.h>

int countSetBits(unsigned int n) {
    // Write your code here
    if (n == 0) return 0;
    int x = 0;
    int y = 0;
    int z = 0;
    while (1)
    {
        z = n & (1 << y);
        if (z == 0)
        {
            x+=0;
        }
        else
        {
            x++;
        }

        if (y == 31)
        {
            break;
        }
        y++;
    }
    return x;

}

int main() {
    int n;
    scanf("%d", &n);
    printf("%d", countSetBits(n));
    return 0;
}

Solving Approach