刷题打卡，克服游戏瘾!!!

1130. Minimum Cost Tree From Leaf Values
好题好题。
今天就刷了一个 好好休息吧 明天好好上班

426. Convert Binary Search Tree to Sorted Doubly Linked List
150. Evaluate Reverse Polish Notation
1472. Design Browser History
388. Longest Absolute File Path
946. Validate Stack Sequences

明天开始做stack hard的题了。
7pm to 10 pm 目标是做好两道就好..

224. Basic Calculator
32. Longest Valid Parentheses
726. Number of Atoms

stack题的思路：进入下一层的时候，把当前层的结果push入栈

895. Maximum Frequency Stack
772. Basic Calculator III
1396. Design Underground System
273. Integer to English Words
932. Beautiful Array.

4. Median of Two Sorted Arrays没做完。。

31. Next Permutation
529. Minesweeper
134. Gas Station
362. Design Hit Counter
863. All Nodes Distance K in Binary Tree

621. Task Scheduler
1509. Minimum Difference Between Largest and Smallest Value in Three Moves

练习greedy

244. Shortest Word Distance II
138. Copy List with Random Pointer
1048. Longest String Chain
343. Integer Break

周末又发作了。哎 跟个魔咒一样 0.0

287. Find the Duplicate Number
199. Binary Tree Right Side View
34. Find First and Last Position of Element in Sorted Array
36. Valid Sudoku
随便刷几个简单的medium. 要花时间准备一下IELTS的写作和口语争取考个8

974. Subarray Sums Divisible by K
523. Continuous Subarray Sum
6. ZigZag Conversion

还用Pramp Mock了一道BFS。对面是印度人。印度哥哥的口音听不懂，这个要咋练。。

这周六的雅思。所以最近暂停刷题一小会儿