[第三期活动] 在职刷题打卡，目标工作日一天2题，周末一天5题

day 24
今天4题
Can I Win
Get Equal Substrings Within Budget
Remove All Adjacent Duplicates in String II
Unique Number of Occurrences

09/28
lc contest

# Day_28

刷了下地里的面试题，希望OA明天碰到原题 : - )

练习了下HackerRank的一些examples，校招时还被这网站坑过，总有种不祥的预感

Stage II : 分类各个击破
day22-09/28-stage II顺利结束（其实还差几题，算了），明天开始stage3，预计国庆结束前完成，毕竟还有大量面筋待做
hashmap:
1. 49. Group Anagrams
2. 242. Valid Anagram
3. 5. Longest Palindromic Substring
4. 557. Reverse Words in a String III
5. 151. Reverse Words in a String
6. 186. Reverse Words in a String II
7. 165. Compare Version Numbers
8. 58. Length of Last Word
9. 6. ZigZag Conversion
10. 38. Count and Say
11. 272. Closest Binary Search Tree Value II
12. 270. Closest Binary Search Tree Value
13. 71. Simplify Path
14. 150. Evaluate Reverse Polish Notation
15. 20. Valid Parentheses
16. 155. Min Stack
17. 232. Implement Queue using Stacks
18. 225. Implement Stack using Queues
19. 249. Group Shifted Strings
20. 266. Palindrome Permutation
21. 30. Substring with Concatenation of All Words
22. 76. Minimum Window Substring
23. 159. Longest Substring with At Most Two Distinct Characters
24. 3. Longest Substring Without Repeating Characters

D3 (9/27)
Single Number
Intersection of Two Arrays II
Plus one
Move zeros
Two sum

day 23
Read N Characters Given Read4 这题实在太难理解题意了，对着一个答案抄了一遍 - -
158. Read N Characters Given Read4 II - Call multiple times 在上题的基础上，hard一次写过！

# Day_27
Array
Product of Array Except Self
Maximum Subarray

09/27
921. Minimum Add to Make Parentheses Valid
Balance Parentheses

Stage II : 分类各个击破
day21-09/27-明天结束stage II
1. 288. Unique Word Abbreviation
2. 202. Happy Number
3. 842. Split Array into Fibonacci Sequence
4. 306. Additive Number
5. 216. Combination Sum III
6. 484. Find Permutation

day 22
今天状态不太好，水两题
Asteroid Collision
Intersection of Two Arrays