组队复习算法+刷题

打卡27
Stack 相关：
Mini Parser
Basic Calculator II
Basic Calculator
Decode String
Evaluate Reverse Polish Notation

最近在总结复习 DFS和Recursion
437. Path Sum III
344. Reverse String
24. Swap Nodes in Pairs
339. Nested List Weight Sum
559. Maximum Depth of N-ary Tree
897. Increasing Order Search Tree
872. Leaf-Similar Trees

打卡28:
Top K Frequent Elements
Super Ugly Number
Ugly Number II
Ugly Number

打卡29:

Course Schedule
Word Search II
Add and Search Word
Perfect Rectangle
Self Crossing
Rectangle Area
Max Points on a Line
Minimum Height Trees
Evaluate Division
Clone Graph
Flatten Nested List Iterator
Reconstruct Itinerary
The Skyline Problem
Find K Pairs with Smallest Sums

打卡30:
Course Schedule II
Find First and Last Position of Element in Sorted Array
Guess Number Higher or Lower
Find Minimum in Rotated Sorted Array II
Find Minimum in Rotated Sorted Array
Find Peak Element
Search in Rotated Sorted Array
Search Insert Position

不知道现在还能加入吗

新人参与
今日（2019/10/12）打卡：
1. Build Post Office II（BFS）
2. Course Schedule I&II (BFS)

如果有打卡群 求群主拉一拉

补昨天（2019/10/14）的打卡：
1. Course Schedule III(priority_queue, 贪心)
2. Cheapest Flights With K Stops(图，Priority_queue, 贪心，dijkstra算法)

打卡31:
Count of Smaller Numbers After Self
Longest Increasing Subsequence
Russian Doll Envelopes