组队复习算法+刷题

8/12 打卡：
322. coin change => dp
518. coin change2 => dp
49. group anagrams => hashmap 找到用什么来作为key是关键
300. longest increasing subsequence => dp

08/12 打卡 (Day 4)
977. Squares of a Sorted Array [Two Pointers] - Easy
13. Roman to Integer [HashMap] - Easy

打卡
1. 1144-Decrease Elements To Make Array Zigzag （array）
2. 1145-Binary Tree Coloring Game (DFS)
3. 1146-Snapshot Array (design)
4. 1147-Longest Chunked Palindrome Decomposition (greedy-recursive, iterator or DP)

8/12
716.max-stack.java --> 2 stacks
72.edit-distance.java --> DP
有意搞一个DP周

打卡5:
String 系列
387        First Unique Character in a String       
383        Ransom Note       
344        Reverse String       
151        Reverse Words in a String       
205        Isomorphic Strings       
290        Word Pattern       
242        Valid Anagram       
49        Group Anagrams

tracy82 发表于 2019-8-11 02:35
好厉害， 希望自己也开始努力

欢迎欢迎啊 加油哦

GehMvr 发表于 2019-8-13 07:09
8/12 打卡：
322. coin change => dp
518. coin change2 => dp

欢迎新同学哦 👍👍

qugemingzi 发表于 2019-8-10 05:38
打卡5:

今日进度：

打卡6:

进度：
周末休息了一下，今天继续。
第九章9.1.1 Hash Tables
interview question 1.1 Is Unique:
9.1.2 ArrayList & Resizable Arrays
interview question 1.2 Check Permutation


打卡summary：
特别开心看到这么多小伙伴这么积极，整理了下大家打卡情况，相互激励：
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chenghsu0224   ++++++
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为一直在坚持的小伙伴点赞，特别是周末还坚持打卡2次以上的kaka880213、程序媛orZ、jiangxiaoheng、chenghsu0224、Acker



Day day up!

8.13打卡：
String Sliding Window:
567. Permutation in String
438. Find All Anagrams in a String
3. Longest Substring Without Repeating Characters
159. Longest Substring with At Most Two Distinct Characters
340. Longest Substring with At Most K Distinct Characters
76. Minimum Window Substring
30. Substring with Concatenation of All Words

8/13 DP周开始，先做简单DP热一下身
256.paint-house.java
303.range-sum-query-immutable.java
392.is-subsequence.java
70.climbing-stairs.java
746.min-cost-climbing-stairs.java