InvertBinaryTree.js (codesONLY#76)

gunjapandey · web-flow · commit cd7202793f5a · 2021-10-20T19:51:12.000+05:30
diff --git a/DSA/DFS/InvertBinaryTree.js b/DSA/DFS/InvertBinaryTree.js
@@ -0,0 +1,16 @@
+/**
+ * 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)
+ * }
+ */
+
+var invertTree = function(root) {
+     if(!root) {
+        return null;
+    }
+    [root.left, root.right] = [invertTree(root.right), invertTree(root.left)];
+    return root;
+};
