Loading problems...
30 problems total
| Title | Difficulty | Videos | Companies |
|---|---|---|---|
| Design LRU Cache | medium | - | |
| Min Stack | medium | ||
| Binary Search Tree BST Inorder Iterator | medium | - | |
| Implement Trie | medium | ||
| Design Add and Search Words Data Structure | medium | ||
| Implement Queue using Stacks | easy | - | |
| Flatten 2D Vector | medium | - | |
| Zigzag Iterator | medium | - | |
| Peeking Iterator | medium | - | |
| Find Median from Data Stream | hard | ||
| Serialize and Deserialize Binary Tree | hard | ||
| Range Sum Query 2D - Immutable | medium | - | |
| Flatten Nested List Iterator | medium | - | |
| Design Tic-Tac-Toe | medium | - | |
| Design Snake Game | medium | - | |
| Logger Rate Limiter | easy | - | |
| Design Hit Counter | medium | - | |
| Insert Delete Search and GetRandom in Constant Time 1 - Dupes not allowed | medium | - | |
| Insert Delete Search and GetRandom in Constant Time 2 - Duplicates allowed | hard | - | |
| Shuffle an Array | medium | - | |
| LFU Cache | hard | - | |
| Design Circular Queue | medium | - | |
| Design Search Autocomplete System | hard | - | |
| Kth Largest Element in a Stream | easy | ||
| Design HashMap | easy | - | |
| My Calendar 1 | medium | - | |
| Maximum Frequency Stack | hard | - | |
| Online Election | medium | - | |
| Time Based Key-Value Store | medium | - | |
| Snapshot Array | medium | - |