Uri 1074 solution in C | Even or Odd

/*Before seeing the code solution make sure that you have tried enough. Don’t copy- paste the whole code. Find out the logic. If you face any trouble, just inform me in comment.*/

#include <stdio.h>
int main()
{
    int N,X,a;
    scanf ("%d", &N);
    for(a=1;a<=N;a++)
    {
        scanf ("%d",&X);
        if(X==0)
            printf("NULL\n");
        else if(X<=0&&X%2==0)
            printf ("EVEN NEGATIVE\n");
        else if(X<=0&&X%2==-1)
            printf ("ODD NEGATIVE\n");
        else if(X>=0&&X%2==0)
            printf ("EVEN POSITIVE\n");
        else if(X>=0&&X%2==1)
            printf ("ODD POSITIVE\n");
    }
    return 0;
}

 //Happy_Coding