Create maximum_depth_binary_tree.js

Author: TheCoderSingh

maximum_depth_binary_tree.js

@@ -0,0 +1,28 @@
+/**
+ * Definition for a binary tree node.
+ * function TreeNode(val, left, right) {
+ *     this.val = (val===undefined ? 0 : val)
+ *     this.left = (left===undefined ? null : left)
+ *     this.right = (right===undefined ? null : right)
+ * }
+ */
+/**
+ * @param {TreeNode} root
+ * @return {number}
+ */
+var maxDepth = function(root) {
+   return getDepth(root);
+};
+
+var getDepth = function(root) {
+    if(root === null)
+        return 0;
+
+    let left = getDepth(root.left);
+    let right = getDepth(root.right);
+
+    if(left > right)
+        return left + 1;
+    else
+        return right + 1;
+}