zzzzzzzy 刷题记录帖 🤓

### Sep 2, 2018

**LintCode:**

- [x] 213. String Compression
- [x] 464. Sort Integers II
- [x] 130. Heapify
- [x] 209. First Unique Character in a String
- [x] 213. String Compression
- [x] 111. Climbing Stairs


看完了 cs106b 感觉帮助很大，不能说让我会写C++，但是基本的 Backtracking 以及 recursion 理解的比以前好，挺有帮助的

今天学习 Heap, Heap Sort

做了高盛的OA

好难啊，看的头疼

stud2008 发表于 2018-9-3 13:26
好难啊，看的头疼

加油加油 稳住！！

### Sep 3, 2018

**LintCode:**

- [x] 166. Nth to Last Node in List
- [x] 167. Add Two Numbers
- [x] 113. Remove Duplicates from Sorted List II
- [x] 464. Sort Integers II | Merge Sort `&&` Quick Sort `&&` Heap Sort
- [x] 36. Reverse Linked List II
- [x] 98. Sort List
- [x] 103. Linked List Cycle II

CS106b 是用C++吗

1点50分 发表于 2018-9-4 23:08
CS106b 是用C++吗

dei!!!

不过用的是Stanford自己的 library

### Sep 4, 2018

**LintCode:** Binary Tree

- 复习 4 种 traversal 的各种写法
- [x] 106. Convert Sorted List to Binary Search Tree
- [x] 11. Search Range in Binary Search Tree
- [x] 155. Minimum Depth of Binary Tree | Recursion
- [x] 97. Maximum Depth of Binary Tree  | Recursion
- [x] 163. Unique Binary Search Trees
- [x] 11. Search Range in Binary Search Tree

### Sep 12, 2018

**LintCode:**

- [x] 1231. Minimum Moves to Equal Array Elements
- [x] 491. Palindrome Number
- [x] 627. Longest Palindrome
- [x] 414. Divide Two Integers
- [x] 72. Construct Binary Tree from Inorder and Postorder Traversal
- [x] 73. Construct Binary Tree from Preorder and Inorder Traversal

### Sep 19, 2018

**LintCode:**

- [x] 363. Trapping Rain Water


### Sep 21, 2018

**LintCode:**

- [x] 152. Combinations
- [x] 1617. Array Maximum Difference