1) a first number is always >0 except N=5
2) long types of numbers give AC

Can you give some tests, please?

WA..
who can give some test cases?

#include<stdio.h>
#include<stdlib.h>
int main()
{
    long long n,m;
    scanf("%I64d",&n);
    m=n*(n-3)/2;
    if (n % 2==1)
          printf("%I64d 0\n",m);
    if (n % 2==0)
    {
          if (n==4)printf("0 2\n");
          else
              printf("%I64d %I64d\n",m,m);
    }
    system("pause");
    return 0;
}

Edited by author 20.10.2013 09:53

Use long long instead int

kostan3@spaces.ru