{"blocks": [{"key": "de2e77a7", "text": "Question", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "8356be43", "text": "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.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}], "entityMap": {}}