30. Count Set Bits in an Integer

#include <stdio.h>

int countSetBits(unsigned int n) {
    // Write your code here
    int count = 0;


    for(int i = 0 ; i < sizeof(n) * 8; i++ ){
      
if(n &(1u << i) ){
    count++;
}
else{
   //
}

    }
    return count;
}

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