edit 110

fishercoder1534 · fishercoder1534 · commit b2aa7d4ba301 · 2017-06-23T06:21:18.000+09:00
diff --git a/src/main/java/com/fishercoder/solutions/_110.java b/src/main/java/com/fishercoder/solutions/_110.java
@@ -30,22 +30,16 @@ private int getH(TreeNode root) {
     class Solution_2 {
 
         public boolean isBalanced(TreeNode root) {
-            if (root == null)
-                return true;
             return getH(root) != -1;
         }
 
         private int getH(TreeNode root) {
-            if (root == null)
-                return 0;
+            if (root == null) return 0;
             int leftH = getH(root.left);
-            if (leftH == -1)
-                return -1;
+            if (leftH == -1) return -1;
             int rightH = getH(root.right);
-            if (rightH == -1)
-                return -1;
-            if (Math.abs(leftH - rightH) > 1)
-                return -1;
+            if (rightH == -1) return -1;
+            if (Math.abs(leftH - rightH) > 1) return -1;
             return Math.max(leftH, rightH) + 1;
         }
     }
