Design

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# Title Acceptance Difficulty
460 LFU Cache 22.0% Hard
432 All O`one Data Structure 27.6% Hard
381 Insert Delete GetRandom O(1) - Duplicates allowed 28.4% Hard
380 Insert Delete GetRandom O(1) 38.8% Medium
379 Design Phone Directory 31.1% Medium
362 Design Hit Counter 53.1% Medium
359 Logger Rate Limiter 58.8% Easy
355 Design Twitter 25.1% Medium
353 Design Snake Game 26.0% Medium
348 Design Tic-Tac-Toe 45.5% Medium
346 Moving Average from Data Stream 58.1% Easy
341 Flatten Nested List Iterator 40.0% Medium
297 Serialize and Deserialize Binary Tree 32.4% Hard
295 Find Median from Data Stream 24.7% Hard
288 Unique Word Abbreviation 15.9% Medium
284 Peeking Iterator 35.2% Medium
281 Zigzag Iterator 49.4% Medium
251 Flatten 2D Vector 39.6% Medium
244 Shortest Word Distance II 35.8% Medium
232 Implement Queue using Stacks 35.7% Easy
225 Implement Stack using Queues 31.8% Easy
211 Add and Search Word - Data structure design 21.2% Medium
208 Implement Trie (Prefix Tree) 26.7% Medium
173 Binary Search Tree Iterator 40.0% Medium
170 Two Sum III - Data structure design 23.4% Easy
155 Min Stack 27.2% Easy
146 LRU Cache 16.7% Hard
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