Initial data commit

Task/Sort-three-variables/C-sharp/sort-three-variables.cs

@@ -0,0 +1,31 @@
+using System;
+public class Program
+{
+    public static void Main()
+    {
+        (int x, int y, int z) = (77444, -12, 0);
+
+        //Sort directly:
+        if (x > y) (x, y) = (y, x);
+        if (x > z) (x, z) = (z, x);
+        if (y > z) (y, z) = (z, y);
+        Console.WriteLine((x, y, z));
+
+        var (a, b, c) = (
+            "lions, tigers, and",
+            "bears, oh my!",
+            "(from the 'Wizard of OZ')");
+
+        //Sort with generic method:
+        Sort(ref a, ref b, ref c);
+        Console.WriteLine((a, b, c));
+    }
+
+    public static void Sort<T>(ref T a, ref T b, ref T c)
+        where T : IComparable<T>
+    {
+        if (a.CompareTo(b) > 0) (a, b) = (b, a);
+        if (a.CompareTo(c) > 0) (a, c) = (c, a);
+        if (b.CompareTo(c) > 0) (b, c) = (c, b);
+    }
+}