每天五道题 坚持四十天

2018-10-17 (day #13 )

269. Alien Dictionary
683. K Empty Slots
380. Insert Delete GetRandom O(1)
393. UTF-8 Validation
159. Longest Substring with At Most Two Distinct Characters

Build graph, traverse graph, bucket sort and sliding window. Blow it!

楼主好厉害，每天上班还能刷5道，我晚上回了家能刷两三道easy就开心死了！

2018-10-18 (day # 14)

547. Friend Circles
224. Basic Calculator
127. Word Ladder
128. Longest Consecutive Sequence
239. Sliding Window Maximum

Really dislike this kind of problem 127. Word Ladder

加油楼主！看来工作以后也不能放下leetcode

2018-10-18 (day # 15)

46. Permutations
564. Find the Closest Palindrome (I gave up after trying for one hour, sorry folks)
143. Reorder List
25. Reverse Nodes in k-Group
621. Task Scheduler


Tired af

2018-10-19(day # 16)

336. Palindrome Pairs
349. Intersection of Two Arrays
609. Find Duplicate File in System
126. Word Ladder II
142. Linked List Cycle II
114. Flatten Binary Tree to Linked List
904. Fruit Into Baskets

2018-10-20 （day # 17）

203. Remove Linked List Elements
457. Circular Array Loop                (脑筋急转弯)
39. Combination Sum
78. Subsets                                （Backtracking 的经典）
364. Nested List Weight Sum II   
925. Long Pressed Name
926. Flip String to Monotone Increasing
927. Three Equal Parts                   （TLE， damn）

TheHotOne 发表于 2018-10-21 14:10
2018-10-20 （day # 17）

203. Remove Linked List Elements

lz一天刷这么多题得花多长时间啊？都是自己从头想出答案的吗？

nsc 发表于 2018-10-22 05:01
lz一天刷这么多题得花多长时间啊？都是自己从头想出答案的吗？

一般至少两个多小时吧，是的，自己想，有些hard可能会看答案，很多以前找工作的时候都刷过，多少有些印象

2018-10-21 (day # 18)

32. Longest Valid Parentheses
57. Insert Interval
287. Find the Duplicate Number
221. Maximal Square
125. Valid Palindrome
402. Remove K Digits