Data commit

Task/Nth/C-sharp/nth-1.cs

@@ -0,0 +1,32 @@
+using System;
+using System.Linq;
+
+class Program
+{
+    private static string Ordinalize(int i)
+    {
+        i = Math.Abs(i);
+
+        if (new[] {11, 12, 13}.Contains(i%100))
+            return i + "th";
+
+        switch (i%10)
+        {
+            case 1:
+                return i + "st";
+            case 2:
+                return i + "nd";
+            case 3:
+                return i + "rd";
+            default:
+                return i + "th";
+        }
+    }
+
+    static void Main()
+    {
+        Console.WriteLine(string.Join(" ", Enumerable.Range(0, 26).Select(Ordinalize)));
+        Console.WriteLine(string.Join(" ", Enumerable.Range(250, 16).Select(Ordinalize)));
+        Console.WriteLine(string.Join(" ", Enumerable.Range(1000, 26).Select(Ordinalize)));
+    }
+}

Task/Nth/C-sharp/nth-2.cs

@@ -0,0 +1,22 @@
+using System;
+
+static string Ordinalize(int i)
+{
+    return i + (
+        i % 100 is >= 11 and <= 13 ? "th" :
+        i % 10 == 1 ? "st" :
+        i % 10 == 2 ? "nd" :
+        i % 10 == 3 ? "rd" :
+        "th");
+}
+
+static void PrintRange(int begin, int end)
+{
+    for(var i = begin; i <= end; i++)
+        Console.Write(Ordinalize(i) + (i == end ? "" : " "));
+    Console.WriteLine();
+}
+
+PrintRange(0, 25);
+PrintRange(250, 265);
+PrintRange(1000, 1025);