| 1 | def drinks_water() -> str: | |
| 2 | pass | |
| 1 | import itertools | |
| 3 | 2 | |
| 3 | def drinks_water() -> str: | |
| 4 | # Solve the puzzle and return the name of the person who drinks water | |
| 5 | solution = solve_puzzle() | |
| 6 | for person in solution: | |
| 7 | if person['drink'] == 'water': | |
| 8 | return person['nationality'] | |
| 9 | return '' | |
| 4 | 10 | |
| 5 | 11 | def owns_zebra() -> str: |
| 6 | pass | |
| 12 | # Solve the puzzle and return the name of the person who owns the zebra | |
| 13 | solution = solve_puzzle() | |
| 14 | for person in solution: | |
| 15 | if person['pet'] == 'zebra': | |
| 16 | return person['nationality'] | |
| 17 | return '' | |
| 18 | ||
| 19 | def solve_puzzle(): | |
| 20 | # Define the possible values for each attribute | |
| 21 | nationalities = ['Englishman', 'Spaniard', 'Ukrainian', 'Norwegian', 'Japanese'] | |
| 22 | colors = ['red', 'green', 'ivory', 'yellow', 'blue'] | |
| 23 | pets = ['dog', 'snail', 'fox', 'horse', 'zebra'] | |
| 24 | drinks = ['coffee', 'tea', 'milk', 'orange juice', 'water'] | |
| 25 | hobbies = ['dancing', 'painting', 'reading', 'football', 'chess'] | |
| 26 | ||
| 27 | # Generate all possible permutations for each attribute | |
| 28 | for nationality_perm in itertools.permutations(nationalities): | |
| 29 | # Constraint 10: The Norwegian lives in the first house | |
| 30 | if nationality_perm[0] != 'Norwegian': | |
| 31 | continue | |
| 32 | ||
| 33 | for color_perm in itertools.permutations(colors): | |
| 34 | # Constraint 15: The Norwegian lives next to the blue house | |
| 35 | if color_perm[1] != 'blue': | |
| 36 | continue | |
| 37 | ||
| 38 | # Constraint 6: The green house is immediately to the right of the ivory house | |
| 39 | found_ivory_green = False | |
| 40 | for i in range(4): | |
| 41 | if color_perm[i] == 'ivory' and color_perm[i+1] == 'green': | |
| 42 | found_ivory_green = True | |
| 43 | break | |
| 44 | if not found_ivory_green: | |
| 45 | continue | |
| 46 | ||
| 47 | for pet_perm in itertools.permutations(pets): | |
| 48 | for drink_perm in itertools.permutations(drinks): | |
| 49 | # Constraint 9: The person in the middle house drinks milk | |
| 50 | if drink_perm[2] != 'milk': | |
| 51 | continue | |
| 52 | ||
| 53 | for hobby_perm in itertools.permutations(hobbies): | |
| 54 | # Create houses with all attributes | |
| 55 | houses = [] | |
| 56 | for i in range(5): | |
| 57 | house = { | |
| 58 | 'nationality': nationality_perm[i], | |
| 59 | 'color': color_perm[i], | |
| 60 | 'pet': pet_perm[i], | |
| 61 | 'drink': drink_perm[i], | |
| 62 | 'hobby': hobby_perm[i] | |
| 63 | } | |
| 64 | houses.append(house) | |
| 65 | ||
| 66 | # Check all constraints | |
| 67 | if check_constraints(houses): | |
| 68 | return houses | |
| 69 | return [] | |
| 70 | ||
| 71 | def check_constraints(houses): | |
| 72 | # Constraint 2: The Englishman lives in the red house | |
| 73 | # Edge Case: Englishman not in red house | |
| 74 | englishman_in_red = False | |
| 75 | for house in houses: | |
| 76 | if house['nationality'] == 'Englishman' and house['color'] == 'red': | |
| 77 | englishman_in_red = True | |
| 78 | break | |
| 79 | if not englishman_in_red: | |
| 80 | return False | |
| 81 | ||
| 82 | # Constraint 3: The Spaniard owns the dog | |
| 83 | # Edge Case: Spaniard doesn't own dog | |
| 84 | spaniard_owns_dog = False | |
| 85 | for house in houses: | |
| 86 | if house['nationality'] == 'Spaniard' and house['pet'] == 'dog': | |
| 87 | spaniard_owns_dog = True | |
| 88 | break | |
| 89 | if not spaniard_owns_dog: | |
| 90 | return False | |
| 91 | ||
| 92 | # Constraint 4: The person in the green house drinks coffee | |
| 93 | # Edge Case: Person in green house doesn't drink coffee | |
| 94 | green_drinks_coffee = False | |
| 95 | for house in houses: | |
| 96 | if house['color'] == 'green' and house['drink'] == 'coffee': | |
| 97 | green_drinks_coffee = True | |
| 98 | break | |
| 99 | if not green_drinks_coffee: | |
| 100 | return False | |
| 101 | ||
| 102 | # Constraint 5: The Ukrainian drinks tea | |
| 103 | # Edge Case: Ukrainian doesn't drink tea | |
| 104 | ukrainian_drinks_tea = False | |
| 105 | for house in houses: | |
| 106 | if house['nationality'] == 'Ukrainian' and house['drink'] == 'tea': | |
| 107 | ukrainian_drinks_tea = True | |
| 108 | break | |
| 109 | if not ukrainian_drinks_tea: | |
| 110 | return False | |
| 111 | ||
| 112 | # Constraint 7: The snail owner likes to go dancing | |
| 113 | # Edge Case: Snail owner doesn't like dancing | |
| 114 | snail_owner_dances = False | |
| 115 | for house in houses: | |
| 116 | if house['pet'] == 'snail' and house['hobby'] == 'dancing': | |
| 117 | snail_owner_dances = True | |
| 118 | break | |
| 119 | if not snail_owner_dances: | |
| 120 | return False | |
| 121 | ||
| 122 | # Constraint 8: The person in the yellow house is a painter | |
| 123 | # Edge Case: Person in yellow house is not a painter | |
| 124 | yellow_house_painter = False | |
| 125 | for house in houses: | |
| 126 | if house['color'] == 'yellow' and house['hobby'] == 'painting': | |
| 127 | yellow_house_painter = True | |
| 128 | break | |
| 129 | if not yellow_house_painter: | |
| 130 | return False | |
| 131 | ||
| 132 | # Constraint 11: The person who enjoys reading lives in the house next to the person with the fox | |
| 133 | # Edge Case: Reader not next to fox owner | |
| 134 | reading_next_to_fox = False | |
| 135 | for i in range(5): | |
| 136 | if houses[i]['hobby'] == 'reading': | |
| 137 | if i > 0 and houses[i-1]['pet'] == 'fox': | |
| 138 | reading_next_to_fox = True | |
| 139 | break | |
| 140 | if i < 4 and houses[i+1]['pet'] == 'fox': | |
| 141 | reading_next_to_fox = True | |
| 142 | break | |
| 143 | if not reading_next_to_fox: | |
| 144 | return False | |
| 145 | ||
| 146 | # Constraint 12: The painter's house is next to the house with the horse | |
| 147 | # Edge Case: Painter not next to horse owner | |
| 148 | painter_next_to_horse = False | |
| 149 | for i in range(5): | |
| 150 | if houses[i]['hobby'] == 'painting': | |
| 151 | if i > 0 and houses[i-1]['pet'] == 'horse': | |
| 152 | painter_next_to_horse = True | |
| 153 | break | |
| 154 | if i < 4 and houses[i+1]['pet'] == 'horse': | |
| 155 | painter_next_to_horse = True | |
| 156 | break | |
| 157 | if not painter_next_to_horse: | |
| 158 | return False | |
| 159 | ||
| 160 | # Constraint 13: The person who plays football drinks orange juice | |
| 161 | # Edge Case: Football player doesn't drink orange juice | |
| 162 | football_drinks_orange = False | |
| 163 | for house in houses: | |
| 164 | if house['hobby'] == 'football' and house['drink'] == 'orange juice': | |
| 165 | football_drinks_orange = True | |
| 166 | break | |
| 167 | if not football_drinks_orange: | |
| 168 | return False | |
| 169 | ||
| 170 | # Constraint 14: The Japanese person plays chess | |
| 171 | # Edge Case: Japanese person doesn't play chess | |
| 172 | japanese_plays_chess = False | |
| 173 | for house in houses: | |
| 174 | if house['nationality'] == 'Japanese' and house['hobby'] == 'chess': | |
| 175 | japanese_plays_chess = True | |
| 176 | break | |
| 177 | if not japanese_plays_chess: | |
| 178 | return False | |
| 179 | ||
| 180 | # All constraints satisfied | |
| 181 | return True | |
| 182 | ||
| 183 | # Handled Edge Cases: Englishman not in red house, Spaniard doesn't own dog, person in green house doesn't drink coffee, | |
| 184 | # Ukrainian doesn't drink tea, snail owner doesn't like dancing, person in yellow house is not a painter, | |
| 185 | # reader not next to fox owner, painter not next to horse owner, football player doesn't drink orange juice, | |
| 186 | # Japanese person doesn't play chess |
| Test Name | Status |
|---|---|
test_resident_who_drinks_water | Pass |
test_resident_who_owns_zebra | Pass |
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