It runs well on MS Visual C# 2005, but here i get CE

using System;
using System.Text;

class Program
{
    static void Main()
    {
        ulong n = ulong.Parse(Console.ReadLine());
        ulong sum = 1;
        ulong ans = 0;
        ulong a = 2, b = 3, c = 4;
        ulong a1 = 1, b1 = 1, c1 = 1;
        for (ulong i = 1; i <= n; ++i)
        {
            a1 *= a;
            a1 %= 1000;
            b1 *= b;
            b1 %= 1000;
            c1 *= c;
            c1 %= 1000;
        }
        sum += a1 + b1 + c1;

        while (true)
        {
            if ((sum % 10) == 0)
            {
                ans++;
            }
            else
            {
                Console.WriteLine(ans);
                break;
            }
            sum /= 10;
        }
    }
}

Edited by author 30.01.2007 15:26

Say you what you write on c#

Edited by author 21.03.2007 14:23

Really compilation error? I sent your solution for problem 1000 and it was compiled (I got crash on 1 test). Be sure that you selected correct langyage during submitting

Edited by author 21.03.2007 16:47

man put instead of true sum != 0