Count Set Bits in an Integer

Code

#include <stdio.h>

int countSetBits(unsigned int n) {
    // Write your code here
    int num_bits = 0;
    while(n > 0){
        if((n & 1) == 1)
            num_bits++;
        n>>=1;
        
    }
    return num_bits;

}

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

Solving Approach