Count Set Bits in an Integer

Code

#include <stdio.h>

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

    return count_set_bits;
}


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

Solving Approach