public void Test2()
{
var solution = new LeetCode.P226.Solution();
var root = new LeetCode.P226.TreeNode(1);
root.left = new LeetCode.P226.TreeNode(2);
var result = solution.InvertTree(root);
Assert.Equal(1, result.val);
Assert.Null(result.left);
Assert.Equal(2, result.right.val);
}
public void Test1()
{
var solution = new LeetCode.P226.Solution();
var root = new LeetCode.P226.TreeNode(4);
root.left = new LeetCode.P226.TreeNode(2);
root.left.left = new LeetCode.P226.TreeNode(1);
root.left.right = new LeetCode.P226.TreeNode(3);
root.right = new LeetCode.P226.TreeNode(7);
root.right.left = new LeetCode.P226.TreeNode(6);
root.right.right = new LeetCode.P226.TreeNode(9);
var result = solution.InvertTree(root);
Assert.Equal(4, result.val);
Assert.Equal(7, result.left.val);
Assert.Equal(9, result.left.left.val);
Assert.Equal(6, result.left.right.val);
Assert.Equal(2, result.right.val);
Assert.Equal(3, result.right.left.val);
Assert.Equal(1, result.right.right.val);
}