[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

Day02
752 Open the Lock  542. 01 Matrix
立帖为证， 明天至少刷6题！

# Day 06
Minimum Cost Tree From Leaf Values

[Day 5][Total Day 17] 2019/11/6，Topic：Data Structure（Lintcode）
- 171. Anagrams
- 124. Longest Consecutive Sequence
- 4. Ugly Number II
- 544. Top k Largest Numbers
- 545. Top k Largest Numbers II
- 612. K Closest Points
- 1281. Top K Frequent Elements

day2 :decode way , 被面经耽误的一天，明天不能了！

# day 3/3
- 55 Jump game
- 157 Read N Given Read4
- 158 Read N Given Read4 II
- 282 Expression Add Operators
- 523 Continuous Subarray Sum
递归果然还是太难了。

# Day 01/01
60. Permutation Sequence
301 Remove Invalid Parentheses  

# Day 04 (5)
268. Missing Number
- easy，一道弱智数学题

# Day 05 (6)
223. Rectangle Area
- medium，也是一道数学题

# Day 05
Longest String Chain
Fraction to Recurring Decimal

[Day 4][Total Day 16] 2019/11/5，Topic：Data Structure（Lintcode）
- 24. LFU Cache
- 657. Insert Delete GetRandom O(1)
- 381. Insert Delete GetRandom O(1) - Duplicates allowed（Leetcode）
- 526. Load Balancer
- 138. Subarray Sum
- 105. Copy List with Random Pointer

459. Repeated Substring Pattern