Count Set Bits in an Integer

Code

#include <stdio.h>

int countSetBits(unsigned int n) {
    // Write your code here
    unsigned int c; // c accumulates the total bits set in v

    for (c = 0; n; n >>= 1)
    {
        c += n & 1;
    }
    return c;
}

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

Solving Approach