Count Set Bits in an Integer

Code

#include <stdio.h>

int countSetBits(unsigned int n) {
    // Write your code here

    int bit, set_bits = 0;

    while (n != 0)
    {
        bit = n & 1u;
        n >>= 1;
        
        if (bit == 1)
        {
            set_bits++;
        }
        
    }

    return set_bits;
}

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

Solving Approach