Merge pull request neetcode-gh#2361 from singhaniket98/main

0606-construct-string-from-binary-tree.java

Author: MHamiid

java/0606-construct-string-from-binary-tree.java

@@ -0,0 +1,14 @@
+class Solution {
+    public String tree2str(TreeNode root) {
+        if(root == null) return "";
+        String output = String.valueOf(root.val);
+        if(root.left != null || root.right != null)
+            output += "(" + tree2str(root.left) + ")";
+        if(root.right != null) 
+            output += "(" + tree2str(root.right) + ")";
+
+        return output;
+    }
+
+    
+}