[C/C++] find out whether a number is odd or even

#include <stdio.h>
 
void main(void)
{
    int i;
    printf("\nEnter a number (integer).. ");
    scanf("%d", &i);
 
    if(i & 1){
        printf("%d is odd \n", i);
    } else {
        printf("%d is even \n", i);
    }
    return 0;
}