Merge pull request haoel#122 from FEIGONG/master

	modified:   algorithms/cpp/maximumDepthOfBinaryTree/maximumDepthOfBi…

Author: haoel

algorithms/cpp/maximumDepthOfBinaryTree/maximumDepthOfBinaryTree.cpp

@@ -40,3 +40,11 @@ class Solution {
     }
 
 };
+
+class Solution2 {
+public:
+    int maxDepth(TreeNode *root) {
+        if (root==NULL) return 0;
+        return max(maxDepth(root->left), maxDepth(root->right)) + 1;
+    }
+};