Count Set Bits in an Integer

Code

#include <stdio.h>

int countSetBits(unsigned int n) 
{
    int c=0;
    for(int i=31;i>=0;i--)
    {
        if((n>>i)&1==1)
        {
            c++;
        }
    }
    return c;
}

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

Solving Approach