Merge pull request neetcode-gh#3120 from dmitry-ivashenko/0617-merge-two-binary-trees

Create 0617-merge-two-binary-trees.cs

Author: tahsintunan

csharp/0617-merge-two-binary-trees.cs

@@ -0,0 +1,12 @@
+public class Solution {
+    public TreeNode MergeTrees(TreeNode root1, TreeNode root2) {
+        if (root1 == null) return root2;
+
+        if (root2 == null) return root1;
+
+        return new TreeNode(root1.val + root2.val,
+            MergeTrees(root1.left, root2.left),
+            MergeTrees(root1.right, root2.right)
+        );
+    }
+}