added solution for string reduction

Kyle Maune · Kyle Maune · commit 8e4f8eff3af9 · 2014-07-15T17:09:59.000-07:00
diff --git a/Medium Difficulty/stringReduction.js b/Medium Difficulty/stringReduction.js
@@ -0,0 +1,15 @@
+// coderbyte solution for string reduction
+// splashinn
+
+function StringReduction(str) {
+  var lastLength;
+
+  do {
+    lastLength = str.length;
+    str = str.replace(/ab|ba/, "c");
+    str = str.replace(/bc|cb/, "a");
+    str = str.replace(/ac|ca/, "b");
+  }
+  while (lastLength > str.length)
+    return str.length;
+}
