Question 1
4 people (David, Taylor, Linda, Karen) live in a building with floors 1 to 4. They recently moved between floors.
Based on these clues:
• Initially, David lived on floor 2
• Initially, Taylor lived on floor 3
• Initially, Linda lived on floor 4
• Initially, Karen lived on floor 1
• David moved 1 floor down
• Taylor moved 1 floor down
• Linda moved 1 floor down
• Karen moved 3 floors up
• Taylor and Karen are exactly 2 floors apart
• Linda lives above Taylor
• Karen lives on the top floor
After the moves, on which floor does David live?
The unique arrangement (floor: person) is: {1: 'David', 2: 'Taylor', 3: 'Linda', 4: 'Karen'}. Initial state: {'Karen': 1, 'David': 2, 'Taylor': 3, 'Linda': 4}.