Initial data commit

Task/Priority-queue/C-sharp/priority-queue-1.cs

@@ -0,0 +1,33 @@
+using System;
+using System.Collections.Generic;
+
+namespace PriorityQueueExample
+{
+	class Program
+	{
+		static void Main(string[] args)
+		{
+			// Starting with .NET 6.0 preview 2 (released March 11th, 2021), there's a built-in priority queue
+			var p = new PriorityQueue<string, int>();
+			p.Enqueue("Clear drains", 3);
+			p.Enqueue("Feed cat", 4);
+			p.Enqueue("Make tea", 5);
+			p.Enqueue("Solve RC tasks", 1);
+			p.Enqueue("Tax return", 2);
+			while (p.TryDequeue(out string task, out int priority))
+			{
+				Console.WriteLine($"{priority}\t{task}");
+			}
+		}
+	}
+}
+
+/* Output:
+
+1       Solve RC tasks
+2       Tax return
+3       Clear drains
+4       Feed cat
+5       Make tea
+
+ */