How to check parity in binary number

gistfile1.txt

#include<iostream>
#include <stdio.h>
# define  bool int

using namespace std;



bool getParity(unsigned int n)
{
    bool parity = 0;
    while (n)
    {
        parity = !parity;
        n      = n & (n - 1);
    }
    return parity;
}


int main()
{

   unsigned int n;

   scanf("%d",&n);

   int p=getParity(n);

  if(p==0){printf("even\n");}
  else
    printf("odd\n");


    


    return 0;
}