Design

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# Title Acceptance Difficulty
716 Max Stack 33.0% Easy
642 Design Search Autocomplete System 30.7% Hard
635 Design Log Storage System 48.8% Medium
631 Design Excel Sum Formula 27.6% Hard
604 Design Compressed String Iterator 32.5% Easy
588 Design In-Memory File System 35.2% Hard
460 LFU Cache 24.4% Hard
432 All O`one Data Structure 28.1% Hard
381 Insert Delete GetRandom O(1) - Duplicates allowed 29.1% Hard
380 Insert Delete GetRandom O(1) 39.4% Medium
379 Design Phone Directory 34.1% Medium
362 Design Hit Counter 54.5% Medium
359 Logger Rate Limiter 60.1% Easy
355 Design Twitter 25.6% Medium
353 Design Snake Game 26.8% Medium
348 Design Tic-Tac-Toe 45.8% Medium
346 Moving Average from Data Stream 59.5% Easy
341 Flatten Nested List Iterator 42.3% Medium
297 Serialize and Deserialize Binary Tree 34.0% Hard
295 Find Median from Data Stream 28.0% Hard
288 Unique Word Abbreviation 17.3% Medium
284 Peeking Iterator 35.5% Medium
281 Zigzag Iterator 51.4% Medium
251 Flatten 2D Vector 40.9% Medium
244 Shortest Word Distance II 39.5% Medium
232 Implement Queue using Stacks 37.4% Easy
225 Implement Stack using Queues 33.6% Easy
211 Add and Search Word - Data structure design 24.1% Medium
208 Implement Trie (Prefix Tree) 29.5% Medium
173 Binary Search Tree Iterator 42.4% Medium
170 Two Sum III - Data structure design 25.4% Easy
155 Min Stack 29.7% Easy
146 LRU Cache 18.7% Hard