Design

Subscribe to see which companies asked this question

You have solved  0/ 27 problems.
# Title Acceptance Difficulty
460 LFU Cache 19.4% Hard
432 All O`one Data Structure 27.9% Hard
381 Insert Delete GetRandom O(1) - Duplicates allowed 27.9% Hard
380 Insert Delete GetRandom O(1) 38.5% Hard
379 Design Phone Directory 29.8% Medium
362 Design Hit Counter 52.6% Medium
359 Logger Rate Limiter 58.1% Easy
355 Design Twitter 24.5% Medium
353 Design Snake Game 25.6% Medium
348 Design Tic-Tac-Toe 45.2% Medium
346 Moving Average from Data Stream 57.6% Easy
341 Flatten Nested List Iterator 38.8% Medium
297 Serialize and Deserialize Binary Tree 31.7% Hard
295 Find Median from Data Stream 23.3% Hard
288 Unique Word Abbreviation 15.3% Easy
284 Peeking Iterator 35.1% Medium
281 Zigzag Iterator 48.5% Medium
251 Flatten 2D Vector 38.9% Medium
244 Shortest Word Distance II 34.5% Medium
232 Implement Queue using Stacks 35.0% Easy
225 Implement Stack using Queues 31.1% Easy
211 Add and Search Word - Data structure design 20.1% Medium
208 Implement Trie (Prefix Tree) 25.6% Medium
173 Binary Search Tree Iterator 39.1% Medium
170 Two Sum III - Data structure design 22.7% Easy
155 Min Stack 26.3% Easy
146 LRU Cache 16.0% Hard
Send Feedback