AC maxDepth

Author: eytter48

Diff for: P104.cpp

@@ -0,0 +1,18 @@
+#include "header.h"
+
+class Solution {
+    public:
+        int maxDepth(TreeNode* root) {
+            return f(root,1);                
+        }
+        int f(TreeNode* t, int l) {
+            if (!t) return l-1;
+            return max(f(t->left,l+1),f(t->right,l+1));
+        }
+        
+};
+
+int main() {
+    cout << Solution().maxDepth(NULL);
+    return 0;
+}