Data commit

Task/Pascals-triangle/C-sharp/pascals-triangle-1.cs

@@ -0,0 +1,25 @@
+using System;
+
+namespace RosettaCode {
+
+    class PascalsTriangle {
+
+        public static void CreateTriangle(int n) {
+            if (n > 0) {
+                for (int i = 0; i < n; i++) {
+                    int c = 1;
+                    Console.Write(" ".PadLeft(2 * (n - 1 - i)));
+                    for (int k = 0; k <= i; k++) {
+                        Console.Write("{0}", c.ToString().PadLeft(3));
+                        c = c * (i - k) / (k + 1);
+                    }
+                    Console.WriteLine();
+                }
+            }
+        }
+
+        public static void Main() {
+            CreateTriangle(8);
+        }
+    }
+}

Task/Pascals-triangle/C-sharp/pascals-triangle-2.cs

@@ -0,0 +1,48 @@
+using System;
+using System.Linq;
+using System.Numerics;
+using System.Collections.Generic;
+
+namespace RosettaCode
+{
+	public static class PascalsTriangle
+	{		
+		public static IEnumerable<BigInteger[]> GetTriangle(int quantityOfRows)
+		{
+			IEnumerable<BigInteger> range = Enumerable.Range(0, quantityOfRows).Select(num => new BigInteger(num));
+			return range.Select(num => GetRow(num).ToArray());
+		}
+
+		public static IEnumerable<BigInteger> GetRow(BigInteger rowNumber)
+		{
+			BigInteger denominator = 1;
+			BigInteger numerator = rowNumber;
+
+			BigInteger currentValue = 1;
+			for (BigInteger counter = 0; counter <= rowNumber; counter++)
+			{
+				yield return currentValue;
+				currentValue = BigInteger.Multiply(currentValue, numerator--);
+				currentValue = BigInteger.Divide(currentValue, denominator++);
+			}
+			yield break;
+		}
+
+		public static string FormatTriangleString(IEnumerable<BigInteger[]> triangle)
+		{
+			int maxDigitWidth = triangle.Last().Max().ToString().Length;
+			IEnumerable<string> rows = triangle.Select(arr =>
+					string.Join(" ", arr.Select(array => CenterString(array.ToString(), maxDigitWidth)) )
+			);
+			int maxRowWidth = rows.Last().Length;
+			return string.Join(Environment.NewLine, rows.Select(row => CenterString(row, maxRowWidth)));
+		}
+
+		private static string CenterString(string text, int width)
+		{
+			int spaces = width - text.Length;
+			int padLeft = (spaces / 2) + text.Length;
+			return text.PadLeft(padLeft).PadRight(width);
+		}
+	}
+}

Task/Pascals-triangle/C-sharp/pascals-triangle-3.cs

@@ -0,0 +1,6 @@
+static void Main()
+{
+	IEnumerable<BigInteger[]> triangle = PascalsTriangle.GetTriangle(20);
+	string output = PascalsTriangle.FormatTriangleString(triangle)
+	Console.WriteLine(output);
+}