[第五期活动] 在职刷题打卡，目标工作日一天2题，周末一天5题

Day 4
1247. Minimum Swaps to Make Strings Equal
1248. Count Number of Nice Subarrays
1249. Minimum Remove to Make Valid Parentheses

# Day 08
Next Greater Element III
Next Greater Node In Linked List

[Day 7][Total Day 19] 2019/11/8，Topic：Data Structure（Lintcode）
- 130. Heapify + 复习heap的各种操作和复杂度

糟透的一天，各种鸟事
明天整理好心情重新出发

day 6
443. String Compression 居然没能顺顺当当写出来……需要仔细琢磨一下
Reverse Words in a String

# Day 5/5
- 71 Simplify path
- 986 interval list intersections
- 65 valid number

Day 03.
36.37 Valid Sudoku
51. N-Queens
52. N-Queens II
698. Partition to K Equal Sum Subsets
241. Different Ways to Add Parentheses

明天2题 外加一个系统设计 + 基础复习

# Day 07
Next Greater Element I
Next Greater Element II

[Day 6][Total Day 18] 2019/11/7，Topic：Data Structure（Lintcode）
- 104. Merge K Sorted Lists（Heap / Bottom-up / Top-down）
- 209. First Unique Character in a String
- 960. First Unique Number in Data Stream II
- 613. High Five
- 486. Merge K Sorted Arrays
- 606. Kth Largest Element II
- 601. Flatten 2D Vector

day 4
3题
Min Stack
Group Anagrams
Longest Consecutive Sequence
day 5
两题
Valid Palindrome
Sliding Window Maximum 拿max做了一个……然后太困了，明天再看另两种解法吧……

# Day 4/4
- 426 Convert binary search tree to sorted doubly linked list
- 76 Minimum window substring
- 896 Monotonic Array
- 785 Is Graph bipartite
- 23 merge k sorted lists
- 415 add strings