[Init] Solved solutions

cs/266A.cs

@@ -0,0 +1,22 @@
+using System;
+
+namespace problem_266A
+{
+    public class problem_266A
+    {
+		public static void Main(string[] args)
+        {
+			int n = int.Parse(Console.ReadLine());
+			char[] a = Console.ReadLine().ToCharArray();
+			int c = 0;
+			for (int i = 1; i < n; i++)
+			{
+				if (a[i] == a[i - 1])
+				{
+					c++;
+				}
+			}
+			Console.Write(c);
+        }
+    }
+}