Count Set Bits in an Integer

Solving Approach

How do you plan to solve it?

Code

#include <stdio.h>

int countSetBits(unsigned int n) {
    // Write your code here
    int count = 0;
    while (0 != n)
    {
        count += (0x01 & n);
        n >>= 1;
    }
    return count;
}

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