P17185 [GeeksforGeeks] Binary tree to bst
普及-
题目描述

Given a Binary Tree, convert it to Binary Search Tree in such a way that keeps the original structure of Binary Tree intact.

Example 1:
Input:
1
/ \
2 3
Output: 1 2 3
Example 2:
Input:
1
/ \
2 3
/
4
Output: 1 2 3 4
Explanation:
The converted BST will be
3
/ \
2 4
/
1

Your Task:
You don't need to read input or print anything. Your task is to complete the function binaryTreeToBST() which takes the root of the Binary tree as input and returns the root of the BST. The driver code will print inorder traversal of the converted BST.
Expected Time Complexity: O(NLogN).
Expected Auxiliary Space: O(N).
Constraints:
1 <= Number of nodes <= 1000

输入格式

见题面

输出格式

见题面

样例输入
1 / \ 2 3
样例输出
1 2 3