Count Set Bits in an Integer

Code

#include <stdio.h>

int countSetBits(unsigned int n) {
    // Write your code here
    int count = 0;
    for (unsigned int i = 0; i < 8*sizeof(n); i++)
    {
        count += (n & 1);
        n >>= 1;
    }

    return count;
}

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

Solving Approach