[Init] Solved solutions

cs/510A.cs

@@ -0,0 +1,40 @@
+using System;
+
+namespace problem_510A
+{
+	class problem_510A
+	{
+		static void Main(string[] args)
+		{
+			int[] ip = Array.ConvertAll(Console.ReadLine().Split(), int.Parse);
+			for (int i = 0; i < ip[0]; i++)
+			{
+				switch (i % 4)
+				{
+					case 1:
+						for (int j = 1; j < ip[1]; j++)
+						{
+							Console.Write(".");
+						}
+						Console.WriteLine("#");
+						break;
+					case 3:
+						Console.Write("#");
+						for (int j = 1; j < ip[1]; j++)
+						{
+							Console.Write(".");
+						}
+						Console.WriteLine();
+						break;
+					default:
+						for (int j = 0; j < ip[1]; j++)
+						{
+							Console.Write("#");
+						}
+						Console.WriteLine();
+						break;
+				}
+			}
+		}
+	}
+}