Package g0601_0700.s0700_search_in_a_binary_search_tree

Class Solution

java.lang.Object

g0601_0700.s0700_search_in_a_binary_search_tree.Solution

public class Solution
extends Object

700 - Search in a Binary Search Tree.<p>Easy</p> <p>You are given the <code>root</code> of a binary search tree (BST) and an integer <code>val</code>.</p> <p>Find the node in the BST that the node&rsquo;s value equals <code>val</code> and return the subtree rooted with that node. If such a node does not exist, return <code>null</code>.</p> <p><strong>Example 1:</strong></p> <p><img src="https://assets.leetcode.com/uploads/2021/01/12/tree1.jpg" alt="" /></p> <p><strong>Input:</strong> root = [4,2,7,1,3], val = 2</p> <p><strong>Output:</strong> [2,1,3]</p> <p><strong>Example 2:</strong></p> <p><img src="https://assets.leetcode.com/uploads/2021/01/12/tree2.jpg" alt="" /></p> <p><strong>Input:</strong> root = [4,2,7,1,3], val = 5</p> <p><strong>Output:</strong> []</p> <p><strong>Constraints:</strong></p> <ul> <li>The number of nodes in the tree is in the range <code>[1, 5000]</code>.</li> <li><code>1 <= Node.val <= 10⁷</code></li> <li><code>root</code> is a binary search tree.</li> <li><code>1 <= val <= 10⁷</code></li> </ul>

Constructor Summary

Constructors

Constructor	Description
Solution()

Method Summary

Modifier and Type	Method	Description
TreeNode	searchBST(TreeNode root, int val)

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

searchBST

public TreeNode searchBST(TreeNode root,
 int val)