Count Set Bits in an Integer

Code

#include <stdio.h>

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

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

Solving Approach