Difficulty:
Tag:
IDTitleDifficulty
146LRU CacheHard
155Min StackEasy
173Binary Search Tree IteratorMedium
208Implement Trie (Prefix Tree)Medium
232Implement Queue using StacksEasy
295Find Median from Data StreamHard
303Range Sum Query - ImmutableEasy
304Range Sum Query 2D - ImmutableMedium
341Flatten Nested List IteratorMedium
380Insert Delete GetRandom O(1)Medium
381Insert Delete GetRandom O(1) - Duplicates allowedHard
641Design Circular DequeMedium
706Design HashMapEasy
1845Seat Reservation ManagerMedium
2353Design a Food Rating SystemMedium
2642Design Graph With Shortest Path CalculatorHard