3.🔶 LeetCode Curated Algo 170 (HARD)

431. Encode N-ary Tree to Binary Tree:

489. Robot Room Cleaner:

759. Employee Free Time:

1274. Number of Ships in a Rectangle:

428. Serialize and Deserialize N-ary Tree:

1168. Optimize Water Distribution in a Village:

296. Best Meeting Point:

1183. Maximum Number of Ones:

527. Word Abbreviation:

272. Closest Binary Search Tree Value II:

305. Number of Islands II:

1088. Confusing Number II:

265. Paint House II:

158. Read N Characters Given Read4 II - Call multiple times:

499. The Maze III:

425. Word Squares:

588. Design In-Memory File System:

1216. Valid Palindrome III:

642. Design Search Autocomplete System:

308. Range Sum Query 2D - Mutable:

774. Minimize Max Distance to Gas Station:

1548. The Most Similar Path in a Graph:

1259. Handshakes That Don't Cross

1231. Divide Chocolate:

302. Smallest Rectangle Enclosing Black Pixels:

465. Optimal Account Balancing:

772. Basic Calculator III:

317. Shortest Distance from All Buildings:

727. Minimum Window Subsequence:

568. Maximum Vacation Days:

1199. Minimum Time to Build Blocks:

1153. String Transforms Into Another String:

644. Maximum Average Subarray II:

269. Alien Dictionary:

631. Design Excel Sum Formula:

656. Coin Path:

471. Encode String with Shortest Length:

358. Rearrange String k Distance Apart: