g1301_1400.s1379_find_a_corresponding_node_of_a_binary_tree_in_a_clone_of_that_tree

Class Solution

java.lang.Object

g1301_1400.s1379_find_a_corresponding_node_of_a_binary_tree_in_a_clone_of_that_tree.Solution

public class Solution
extends Object

1379 - Find a Corresponding Node of a Binary Tree in a Clone of That Tree.

Medium

Given two binary trees original and cloned and given a reference to a node target in the original tree.

The cloned tree is a copy of the original tree.

Return a reference to the same node in the cloned tree.

Note that you are not allowed to change any of the two trees or the target node and the answer must be a reference to a node in the cloned tree.

Example 1:

Input: tree = [7,4,3,null,null,6,19], target = 3

Output: 3

Explanation: In all examples the original and cloned trees are shown. The target node is a green node from the original tree. The answer is the yellow node from the cloned tree.

Example 2:

Input: tree = [7], target = 7

Output: 7

Example 3:

Input: tree = [8,null,6,null,5,null,4,null,3,null,2,null,1], target = 4

Output: 4

Constraints:

• The number of nodes in the tree is in the range [1, 104].
• The values of the nodes of the tree are unique.
• target node is a node from the original tree and is not null.

Follow up: Could you solve the problem if repeated values on the tree are allowed?

Constructor Summary

Constructors

Constructor and Description
Solution()

Method Summary

Modifier and Type	Method and Description
TreeNode	getTargetCopy(TreeNode original, TreeNode cloned, TreeNode target)

Methods inherited from class java.lang.Object

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

Constructor Detail

Solution

public Solution()

Method Detail

getTargetCopy

public final TreeNode getTargetCopy(TreeNode original,
                                    TreeNode cloned,
                                    TreeNode target)