30. Count Set Bits in an Integer

#include <stdio.h>

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

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