Count Set Bits in an Integer

Code

#include <stdio.h>

int countSetBits(unsigned int n) {
    int numOnes = 0;
    for (int i = 0; i < 32; i++) {
        if ((n & (1 << i) ) >> i ) {
            numOnes++;
        }
    }  
    return numOnes;
}

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

Solving Approach