Create 226. Invert Binary Tree 18 feb (#96)

226. Invert Binary Tree

Author: Chayandas07

226. Invert Binary Tree 18 feb

@@ -0,0 +1,12 @@
+class Solution {
+public:
+    TreeNode* invertTree(TreeNode* root) {
+
+       if(root == NULL) return root;
+       swap(root->left, root->right);
+       invertTree(root->left);
+       invertTree(root->right);
+
+       return root;
+    }
+};