{"blocks": [{"key": "e8ff4c4d", "text": "Question", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "905616ca", "text": "Design an optimal elevator control strategy for a 3-floor apartment building plus 1 basement served by a single elevator. Describe how the elevator should decide its next stop to minimize passenger waiting and travel time.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}], "entityMap": {}}