打卡贴 目标每日四题 时间一个月

Day 13 LinkedList
86. Partition List
141. Linked List Cycle
142. Linked List Cycle II
160. Intersection of Two Linked Lists
61. Rotate List
138. Copy List with Random Pointer

Day 13 2 pointer
83. Remove Duplicates from Sorted List
82. Remove Duplicates from Sorted List II
125. Valid Palindrome
680. Valid Palindrome II

220/400
明天继续做sort！

Day 14 Sort:
75. Sort Colors
215. Kth Largest Element in an Array
703. Kth Largest Element in a Stream
230. Kth Smallest Element in a BST
969. Pancake Sorting
164. Maximum Gap
179. Largest Number
347. Top K Frequent Elements
451. Sort Characters By Frequency
274. H-Index
280. Wiggle Sort  
324. Wiggle Sort II

补个昨天的
Day 15 DP
139. Word Break
140. Word Break II
303. Range Sum Query - Immutable
304. Range Sum Query 2D - Immutable
239/400

发现一直没有加lintcode的题目 所以应该是243/400 :)

Day 15 2sum:
167. Two Sum II - Input array is sorted
170. Two Sum III - Data structure design
259. 3Sum Smaller
1099 Two Sum Less Than K
247/400
454. 4Sum II 明天做！

补完了 kSum (DP)
250/400

Day 16 DP
70. Climbing Stairs   
87. Scramble String
161. One Edit Distance
312. Burst Balloons

Day 16
为了准备面试做了14道SQL

另外mark一下面经帖
https://www.1point3acres.com/bbs/thread-438830-1-1.html
https://www.geeksforgeeks.org/co ... nterview-questions/

JOIN ON vs WHERE
https://blogs.msdn.microsoft.com ... s-join-on-vs-where/

Day 18
Contest
1144. Decrease Elements To Make Array Zigzag
1145. Binary Tree Coloring Game
1146. Snapshot Array         
1147. Longest Chunked Palindrome Decomposition  

决定把sql题目去掉 256/400