Скачать или смотреть 1028. Recover a Tree From Preorder Traversal | leetcode daily challenge | shashcode | java | dsa

Problem Link:
https://leetcode.com/problems/recover...

Problem Statement:
We run a preorder depth-first search (DFS) on the root of a binary tree.
At each node in this traversal, we output D dashes (where D is the depth of this node), then we output the value of this node. If the depth of a node is D, the depth of its immediate child is D + 1. The depth of the root node is 0.
If a node has only one child, that child is guaranteed to be the left child.
Given the output traversal of this traversal, recover the tree and return its root.

Solution Link:
https://github.com/Tiwarishashwat/Int...

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Notes:
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Timestamp:
0:00 - Introduction
1:02 - understanding problem
2:57 - preorder traversal
10:45 - time complexity
11:00 - code
16:44 - stack
22:21 - code