September 2017 Update

Task/Sort-disjoint-sublist/C-sharp/sort-disjoint-sublist.cs

@@ -0,0 +1,29 @@
+using System;
+using System.Linq;
+using System.Collections.Generic;
+
+public class Test
+{
+    public static void Main()
+    {
+        var list = new List<int>{ 7, 6, 5, 4, 3, 2, 1, 0 };
+        list.SortSublist(6, 1, 7);
+        Console.WriteLine(string.Join(", ", list));
+    }
+}
+
+public static class Extensions
+{
+    public static void SortSublist<T>(this List<T> list, params int[] indices)
+        where T : IComparable<T>
+    {
+        var sublist = indices.OrderBy(i => i)
+            .Zip(indices.Select(i => list[i]).OrderBy(v => v),
+                (Index, Value) => new { Index, Value });
+
+        foreach (var entry in sublist) {
+            list[entry.Index] = entry.Value;
+        }
+    }
+
+}