Leetcode-Premium

id title Difficulty Python
1 156. Binary Tree Upside Down Middle Solution
2 157. Read N Characters Given Read4 Easy Solution
3 158. Read N Characters Given Read4 II - Call multiple times Difficult Solution
4 159. Longest Substring with At Most Two Distinct Characters Difficult Solution
5 161. One Edit Distance Middle Solution
6 163. Missing Ranges Middle Solution
7 170. Two Sum III - Data structure design Easy Solution
8 186. Reverse Words in a String II Middle Solution
9 243. Shortest Word Distance Easy Solution
10 244. Shortest Word Distance II Middle Solution
11 245. Shortest Word Distance III Middle Solution
12 246. Strobogrammatic Number Easy Solution
13 247. Strobogrammatic Number II Middle Solution
14 248. Strobogrammatic Number III Difficult Solution
15 249. Group Shifted Strings Middle Solution
16 250. Count Univalue Subtrees Middle Solution
17 251. Flatten 2D Vector Middle Solution
18 252. Meeting Rooms Easy Solution
19 253. Meeting Rooms II Middle Solution
20 254. Factor Combinations Middle Solution
21 255. Verify Preorder Sequence in Binary Search Tree Middle Solution
22 256. Paint House Easy Solution
23 259. 3Sum Smaller Middle Solution
24 261. Graph Valid Tree Middle Solution
25 265. Paint House II Difficult Solution
26 266. Palindrome Permutation Easy Solution
27 267. Palindrome Permutation II Middle Solution
28 269. Alien Dictionary Difficult Solution
29 270. Closest Binary Search Tree Value Easy Solution
30 271. Encode and Decode Strings Middle Solution
31 272. Closest Binary Search Tree Value II Difficult Solution
32 276. Paint Fence Easy Solution
33 277. Find the Celebrity Middle Solution
34 280. Wiggle Sort Middle Solution
35 281. Zigzag Iterator Middle Solution
36 285. Inorder Successor in BST Middle Solution
37 286. Walls and Gates Middle Solution
38 288. Unique Word Abbreviation Middle Solution
39 291. Word Pattern II Difficult Solution
40 293. Flip Game Easy Solution
41 294. Flip Game II Middle Solution
42 296. Best Meeting Point Difficult Solution
43 298. Binary Tree Longest Consecutive Sequence Middle Solution
44 302. Smallest Rectangle Enclosing Black Pixels Difficult Solution
45 305. Number of Islands II Difficult Solution
46 308. Range Sum Query 2D - Mutable Difficult Solution
47 311. Sparse Matrix Multiplication Middle Solution
48 314. Binary Tree Vertical Order Traversal Middle Solution
49 317. Shortest Distance from All Buildings Difficult Solution
50 320. Generalized Abbreviation Middle Solution
51 323. Number of Connected Components in an Undirected Graph Middle Solution
52 325. Maximum Size Subarray Sum Equals k Middle Solution
53 333. Largest BST Subtree Middle Solution
54 339. Nested List Weight Sum Easy Solution
55 340. Longest Substring with At Most K Distinct Characters Difficult Solution
56 346. Moving Average from Data Stream Easy Solution
57 348. Design Tic-Tac-Toe Middle Solution
58 351. Android Unlock Patterns Middle Solution
59 353. Design Snake Game Middle Solution
60 356. Line Reflection Middle Solution
61 358. Rearrange String k Distance Apart Difficult Solution
62 359. Logger Rate Limiter Easy Solution
63 360. Sort Transformed Array Middle Solution
64 361. Bomb Enemy Middle Solution
65 362. Design Hit Counter Middle Solution
66 364. Nested List Weight Sum II Middle Solution
67 366. Find Leaves of Binary Tree Middle Solution
68 369. Plus One Linked List Middle Solution
69 370. Range Addition Middle Solution
70 379. Design Phone Directory Middle Solution
71 408. Valid Word Abbreviation Easy Solution
72 411. Minimum Unique Word Abbreviation Difficult Solution
73 418. Sentence Screen Fitting Middle Solution
74 422. Valid Word Square Easy Solution
75 425. Word Squares Difficult Solution
76 439. Ternary Expression Parser Middle Solution
77 444. Sequence Reconstruction Middle Solution
78 465. Optimal Account Balancing Difficult Solution
79 469. Convex Polygon Middle Solution
80 471. Encode String with Shortest Length Difficult Solution
81 484. Find Permutation Middle Solution
82 487. Max Consecutive Ones II Middle Solution
83 490. The Maze Middle Solution
84 499. The Maze III Difficult Solution
85 505. The Maze II Middle Solution
86 527. Word Abbreviation Difficult Solution
87 531. Lonely Pixel I Middle Solution
88 533. Lonely Pixel II Middle Solution
89 536. Construct Binary Tree from String Middle Solution
90 544. Output Contest Matches Middle Solution
91 545. Boundary of Binary Tree Middle Solution
92 548. Split Array with Equal Sum Middle Solution
93 549. Binary Tree Longest Consecutive Sequence II Middle Solution
94 555. Split Concatenated Strings Middle Solution
95 562. Longest Line of Consecutive One in Matrix Middle Solution
96 568. Maximum Vacation Days Difficult Solution
97 569. Median Employee Salary Difficult Solution
98 570. Managers with at Least 5 Direct Reports Middle Solution
99 571. Find Median Given Frequency of Numbers Difficult Solution
100 573. Squirrel Simulation Middle Solution
101 574. Winning Candidate Middle Solution
102 577. Employee Bonus Easy Solution
103 578. Get Highest Answer Rate Question Middle Solution
104 579. Find Cumulative Salary of an Employee Difficult Solution
105 580. Count Student Number in Departments Middle Solution
106 582. Kill Process Middle Solution
107 584. Find Customer Referee Easy Solution
108 585. Investments in 2016 Middle Solution
109 586. Customer Placing the Largest Number of Orders Easy Solution
110 588. Design In-Memory File System Difficult Solution
111 597. Friend Requests I: Overall Acceptance Rate Easy Solution
112 602. Friend Requests II: Who Has the Most Friends Middle Solution
113 603. Consecutive Available Seats Easy Solution
114 604. Design Compressed String Iterator Easy Solution
115 607. Sales Person Easy Solution
116 608. Tree Node Middle Solution
117 610. Triangle Judgement Easy Solution
118 612. Shortest Distance in a Plane Middle Solution
119 613. Shortest Distance in a Line Easy Solution
120 614. Second Degree Follower Middle Solution
121 615. Average Salary: Departments VS Company Difficult Solution
122 616. Add Bold Tag in String Middle Solution
123 618. Students Report By Geography Difficult Solution
124 619. Biggest Single Number Easy Solution
125 624. Maximum Distance in Arrays Easy Solution
126 625. Minimum Factorization Middle Solution
127 631. Design Excel Sum Formula Difficult Solution
128 634. Find the Derangement of An Array Middle Solution
129 635. Design Log Storage System Middle Solution
130 642. Design Search Autocomplete System Difficult Solution
131 644. Maximum Average Subarray II Difficult Solution
132 651. 4 Keys Keyboard Middle Solution
133 656. Coin Path Difficult Solution
134 660. Remove 9 Difficult Solution
135 663. Equal Tree Partition Middle Solution
136 666. Path Sum IV Middle Solution
137 681. Next Closest Time Middle Solution
138 683. K Empty Slots Difficult Solution
139 694. Number of Distinct Islands Middle Solution
140 711. Number of Distinct Islands II Difficult Solution
141 716. Max Stack Easy Solution
142 723. Candy Crush Middle Solution
143 727. Minimum Window Subsequence Difficult Solution
144 734. Sentence Similarity Easy Solution
145 737. Sentence Similarity II Middle Solution
146 743. Closest Leaf in a Binary Tree Middle Solution
147 751. Number Of Corner Rectangles Middle Solution
148 752. IP to CIDR Easy Solution
149 756. Pour Water Middle Solution
150 758. Convert Binary Search Tree to Sorted Doubly Linked List Middle Solution
151 760. Bold Words in String Easy Solution
152 761. Employee Free Time Difficult Solution
153 762. Find Anagram Mappings Easy Solution
154 765. Serialize and Deserialize N-ary Tree Difficult Solution
155 771. Encode N-ary Tree to Binary Tree Difficult Solution
156 785. Basic Calculator III Difficult Solution
157 786. Search in a Sorted Array of Unknown Size Middle Solution
158 788. Minimize Max Distance to Gas Station Difficult Solution
159 791. Split BST Middle Solution
160 818. Similar RGB Color Easy Solution
161 850. Insert into a Cyclic Sorted List Middle Solution
162 865. Robot Room Cleaner Difficult Solution