Understanding

This is where I write down drafts for learning

105. Construct Binary Tree from Preorder and Inorder Traversal

Medium

Posted on October 28, 2019

Description [Read More]

Tags: Coding LeetCode Medium DFS Tree

Sort Algorithms

排序算法

Posted on October 27, 2019

Table of Contents [Read More]

Tags: Coding Sort

刷题代码模板

Posted on October 26, 2019

　　对于难题，先想出来 Brute Force 怎么做啊！在刷题的时候先把 BF 的写出来！ [Read More]

Tags: Coding LeetCode

The Glory and the Dream

《光荣与梦想》（[美]威廉·曼彻斯特）

Posted on October 26, 2019

光荣与梦想3：1932～1972年美国叙事史（1951～1960） [Read More]

Tags: Machine Learning

99. Recover Binary Search Tree

Hard

Posted on October 25, 2019

Description [Read More]

Tags: Coding LeetCode DFS Tree Hard

897. Increasing Order Search Tree

Easy

Posted on October 25, 2019

Given a binary search tree, rearrange the tree in in-order so that the leftmost node in the tree is now the root of the tree, and every node has no left child and only 1 right child. [Read More]

Tags: Coding LeetCode DFS Tree