#include <stdio.h>
main(){
    int a,b;
    freopen("input.txt","r",stdin);
    freopen("output.txt","w",stdout);
    scanf("%d %d",&a, &b);
    printf("%d",a+b);
           }

Why I had wrong answer? In Visual Studio working perfectly!

Edited by author 17.03.2012 19:46

Edited by author 17.03.2012 19:46

#include <stdio.h>
int main()
{
#ifndef ONLINE_JUDGE
   freopen("input.txt", "rt", stdin);
   freopen("output.txt", "wt", stdout);
#endif
   int a, b;
   scanf("%d%d", &a, &b);
   printf("%d\n", a + b);
   return 0;
}