[Init] Solved solutions

cs/557B.cs

@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace _557B
+{
+	class Program
+	{
+		static void Main(string[] args)
+		{
+			int[] ip = Array.ConvertAll(Console.ReadLine().Split(), int.Parse);
+			double[] a = Array.ConvertAll(Console.ReadLine().Split(), double.Parse);
+			Array.Sort(a);
+			Console.WriteLine(Math.Min(ip[1], ip[0] * Math.Min(a[0] * 3, a[ip[0]] * 3 / 2)).ToString(".##########").Replace(",", "."));
+		}
+	}
+}