OJ Board

Hi, I'm don't know the reason why I get WA for this one. Every input I try seems to yield the correct output.

#include <iostream>
#include <string>
#include <vector>
#include <cstdlib>

using namespace std;

int main()
{

#ifndef ONLINE_JUDGE
freopen("in.txt", "r", stdin);
freopen("out.txt ...

Hi, I get "Compiler Error" on this piece of code for problem 103. How do I track down these kinds of errors? I'm using the latest version of Dev-C++.
edit: Thank you Krzysztof Duleba