Sha256: a048e2adb2fdba400c37bd78055eed16a1727432eb686d0f16637142e250ee1e
Contents?: true
Size: 709 Bytes
Versions: 137
Compression:
Stored size: 709 Bytes
Contents
using System.Collections.Generic;
using System;
public static class PascalsTriangle
{
public static IEnumerable<IEnumerable<int>> Calculate(int rows)
{
if (rows < 0)
throw new ArgumentOutOfRangeException();
return IterateRows(rows);
}
private static IEnumerable<IEnumerable<int>> IterateRows(int rows)
{
for (var i = 1; i <= rows; i++)
{
yield return Row(i);
}
}
private static IEnumerable<int> Row(int row)
{
yield return 1;
var column = 1;
for (var j = 1; j < row; j++)
{
column = column * (row - j) / j;
yield return column;
}
}
}
Version data entries
137 entries across 137 versions & 1 rubygems