30. Count Set Bits in an Integer

#include <stdio.h>

int countSetBits(unsigned int n) {
    int counter = 0;
    for(int i = 0; i <=31; i++) {
        int bit = (n >> i) & 1;
        if(bit == 1) {
            counter++;
        }
        else {

        }
    }
    return counter;
}

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