Quick Summary
- Traverse a URL graph using BFS while dynamically accumulating passkeys into a shared headers map.
- Handle 403 responses by deferring URLs as blocked, which are automatically re-queued when headers update.
- Enforce retry limits only on server errors while correctly managing state transitions between blocked and pending nodes.
What This Tests
- Graph traversal with dynamic state propagation
- Efficient set and map operations for tracking visited and blocked nodes
- Conditional branching and edge-case handling in simulation problems
- Event-driven state updates within iterative algorithms
Common Patterns
Graph Traversal
BFS
Hashing
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Stdout
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