Count Set Bits in an Integer

Code

#include <stdio.h>

int countSetBits(unsigned int n)
{
    // Write your code here
    int count = 0;
    unsigned int temp =0; 
    while(n){
        count += n&1U;
        n >>=1;
    }

    return count;

}

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

Solving Approach

 

 

 

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Input

5

Expected Output

2