It seems like you're looking for resources or links related to competitive programming (CP). Here are some popular topics and platforms in competitive programming along with brief descriptions:
### Topics in Competitive Programming:
1. **Data Structures**:
- Arrays
- Linked Lists
- Stacks and Queues
- Trees (Binary Trees, AVL Trees, Segment Trees, etc.)
- Graphs (BFS, DFS, Dijkstra's, etc.)
- Hash Tables
2. **Algorithms**: