refactor 226

Author: fishercoder1534

src/main/java/com/fishercoder/solutions/_226.java

@@ -5,23 +5,24 @@
 import java.util.LinkedList;
 import java.util.Queue;
 
-/**226. Invert Binary Tree
+/**
+ * 226. Invert Binary Tree
 
-Invert a binary tree.
+  Invert a binary tree.
 
-     4
-   /   \
-  2     7
- / \   / \
-1   3 6   9
+		 4
+	   /   \
+	  2     7
+	 / \   / \
+	1   3 6   9
 
-to
+	to
 
-     4
-   /   \
-  7     2
- / \   / \
-9   6 3   1
+		 4
+	   /   \
+	  7     2
+	 / \   / \
+	9   6 3   1
 
 Trivia:
 This problem was inspired by this original tweet by Max Howell: