Implement wildcard URL router

Q: Implement wildcard URL router

This question evaluates understanding of trie-based data structures, wildcard pattern matching for URL segments, algorithmic time and space complexity analysis, dynamic route insertion/removal, and concurrency/thread-safety considerations.

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Implement a URL routing matcher that supports wildcard segments (e.g., '/a/*/c') using a trie. Discuss time and space complexity, show how to add and remove routes at runtime, and explain strategies for making the data structure thread-safe.

Implement wildcard URL router

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