Day i do not know

2022-10-18 00:45:31 +03:00
parent 01c5720116
commit 284b6ff10c
72 changed files with 1256 additions and 12 deletions
--- a/Tree/Solution.cs
+++ b/Tree/Solution.cs
@@ -0,0 +1,23 @@
+namespace _226._Invert_Binary_Tree;
+
+public class Solution
+{
+    public TreeNode? InvertTree(TreeNode root)
+    {
+        Stack<TreeNode> stack = new Stack<TreeNode>();
+        if (root != null)
+            stack.Push(root);
+        while (stack.Count > 0)
+        {
+            TreeNode cur = stack.Pop();
+            TreeNode? buf = cur.left;
+            cur.left = cur.right;
+            cur.right = buf;
+            if (cur.right != null)
+                stack.Push(cur.right);
+            if (cur.left != null)
+                stack.Push(cur.left);
+        }
+        return root;
+    }
+}