Count Set Bits in an Integer

Code

#include <stdio.h>

int countSetBits(unsigned int n) {
   int count = 0;
while(n){
    //clear data counter zero
    // if ((n&1)==0){
    // count++;
    // }
    // set data counter 1 
    count += (n&1);
    n>>= 1;
}
    return count;
}

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

Solving Approach