Example
public class PigeonholeSort
{
private static void SortPigeonhole(int[] input, int n)
{
int min = input[0], max = input[n];
for (int i = 1; i < n; i++)
{
if (input[i] < min) min = input[i];
if (input[i] > max) max = input[i];
}
int range = max - min + 1;
int[] holes = new int[range];
for (int i = 0; i < n; i++)
{
holes[input[i] - min] = input[i];
}
int index = 0;
for (int i = 0; i < range; i++)
{
foreach (var value in holes)
{
input[index++] = value;
}
}
}
public static int[] Main(int[] input)
{
SortPigeonhole(input, input.Length);
return input;
}
}