| Data-Structure | Algorithm |
| Array | General Coding |
| Stack /Queue | in-order /Pre-order/Post-order traversal 遍历 |
| PriorityQueue(heap) | Greedy |
| LinkedList(single / double) | Recursion /Backtrace |
| Tree / Binary Tree | Broadth-first search |
| Binary Search Tree | Depth-first search |
| HashTable | Divide and Conquer |
| Disjoint Set 并查集 | Dynamic Programming |
| Trie | Binary |
| BloomFilter | Graph |
| LRU cache |