{"blocks": [{"key": "74c4bf5d", "text": "Question", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "7a2f05cb", "text": "Design a real-time Driver Heat Map system that streams live driver locations via WebSocket, partitions the map into cell IDs, and efficiently returns the top-K busiest cells. Explain the Paxos and Raft consensus algorithms and highlight their key differences.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}], "entityMap": {}}