Package g0901_1000.s0965_univalued_binary_tree

Class Solution

java.lang.Object

g0901_1000.s0965_univalued_binary_tree.Solution

public class Solution
extends Object

965 - Univalued Binary Tree.<p>Easy</p> <p>A binary tree is <strong>uni-valued</strong> if every node in the tree has the same value.</p> <p>Given the <code>root</code> of a binary tree, return <code>true</code> <em>if the given tree is <strong>uni-valued</strong> , or</em> <code>false</code> <em>otherwise.</em></p> <p><strong>Example 1:</strong></p> <p><img src="https://assets.leetcode.com/uploads/2018/12/28/unival_bst_1.png" alt="" /></p> <p><strong>Input:</strong> root = [1,1,1,1,1,null,1]</p> <p><strong>Output:</strong> true</p> <p><strong>Example 2:</strong></p> <p><img src="https://assets.leetcode.com/uploads/2018/12/28/unival_bst_2.png" alt="" /></p> <p><strong>Input:</strong> root = [2,2,2,5,2]</p> <p><strong>Output:</strong> false</p> <p><strong>Constraints:</strong></p> <ul> <li>The number of nodes in the tree is in the range <code>[1, 100]</code>.</li> <li><code>0 <= Node.val < 100</code></li> </ul>

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
boolean	isUnivalTree(TreeNode root)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

Solution

public Solution()

Method Details

isUnivalTree

public boolean isUnivalTree(TreeNode root)