File size: 588 Bytes
497f2f3 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 | namespace ConsoleApplication1
{
using System;
class Program
{
static void Main()
{
bool[] doors = new bool[100];
//The number of passes can be 1-based, but the number of doors must be 0-based.
for (int p = 1; p <= 100; p++)
for (int d = p - 1; d < 100; d += p)
doors[d] = !doors[d];
for (int d = 0; d < 100; d++)
Console.WriteLine("Door #{0}: {1}", d + 1, doors[d] ? "Open" : "Closed");
Console.ReadKey(true);
}
}
}
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