| 1 | 1 | def drinks_water() -> str: |
| 2 | pass | |
| 3 | ||
| 2 | # Solve the puzzle and return the name of the resident who drinks water | |
| 3 | solution = solve_puzzle() | |
| 4 | for resident in solution: | |
| 5 | if resident['beverage'] == 'water': | |
| 6 | return resident['nationality'] | |
| 7 | return '' | |
| 4 | 8 | |
| 5 | 9 | def owns_zebra() -> str: |
| 6 | pass | |
| 10 | # Solve the puzzle and return the name of the resident who owns the zebra | |
| 11 | solution = solve_puzzle() | |
| 12 | for resident in solution: | |
| 13 | if resident['pet'] == 'zebra': | |
| 14 | return resident['nationality'] | |
| 15 | return '' | |
| 16 | ||
| 17 | def solve_puzzle(): | |
| 18 | # Generate all possible permutations for each category | |
| 19 | from itertools import permutations | |
| 20 | ||
| 21 | # Categories | |
| 22 | nationalities = ['Englishman', 'Spaniard', 'Ukrainian', 'Norwegian', 'Japanese'] | |
| 23 | colors = ['red', 'green', 'ivory', 'yellow', 'blue'] | |
| 24 | pets = ['dog', 'snail', 'fox', 'horse', 'zebra'] | |
| 25 | beverages = ['coffee', 'tea', 'milk', 'orange juice', 'water'] | |
| 26 | hobbies = ['dancing', 'painting', 'reading', 'football', 'chess'] | |
| 27 | ||
| 28 | # Try all possible combinations | |
| 29 | for nat_perm in permutations(nationalities): | |
| 30 | # Edge Case: The Norwegian lives in the first house (constraint 10) | |
| 31 | if nat_perm[0] != 'Norwegian': | |
| 32 | continue | |
| 33 | ||
| 34 | for col_perm in permutations(colors): | |
| 35 | # Edge Case: The green house is immediately to the right of the ivory house (constraint 6) | |
| 36 | ivory_index = None | |
| 37 | green_index = None | |
| 38 | try: | |
| 39 | ivory_index = col_perm.index('ivory') | |
| 40 | green_index = col_perm.index('green') | |
| 41 | except ValueError: | |
| 42 | continue # If either house is missing, this combination is invalid | |
| 43 | ||
| 44 | if green_index != ivory_index + 1: | |
| 45 | continue | |
| 46 | ||
| 47 | # Edge Case: The Norwegian lives next to the blue house (constraint 15) | |
| 48 | norwegian_index = nat_perm.index('Norwegian') | |
| 49 | try: | |
| 50 | blue_index = col_perm.index('blue') | |
| 51 | except ValueError: | |
| 52 | continue # Blue house is missing | |
| 53 | ||
| 54 | if abs(norwegian_index - blue_index) != 1: | |
| 55 | continue | |
| 56 | ||
| 57 | for pet_perm in permutations(pets): | |
| 58 | for bev_perm in permutations(beverages): | |
| 59 | # Edge Case: The person in the middle house drinks milk (constraint 9) | |
| 60 | if bev_perm[2] != 'milk': | |
| 61 | continue | |
| 62 | ||
| 63 | for hob_perm in permutations(hobbies): | |
| 64 | # Create residents with their attributes | |
| 65 | residents = [] | |
| 66 | for i in range(5): | |
| 67 | residents.append({ | |
| 68 | 'nationality': nat_perm[i], | |
| 69 | 'color': col_perm[i], | |
| 70 | 'pet': pet_perm[i], | |
| 71 | 'beverage': bev_perm[i], | |
| 72 | 'hobby': hob_perm[i] | |
| 73 | }) | |
| 74 | ||
| 75 | # Check all constraints | |
| 76 | valid = True | |
| 77 | ||
| 78 | # Edge Case: The Englishman lives in the red house (constraint 2) | |
| 79 | englishman_found = False | |
| 80 | for resident in residents: | |
| 81 | if resident['nationality'] == 'Englishman' and resident['color'] == 'red': | |
| 82 | englishman_found = True | |
| 83 | break | |
| 84 | if not englishman_found: | |
| 85 | valid = False | |
| 86 | ||
| 87 | # Edge Case: The Spaniard owns the dog (constraint 3) | |
| 88 | spaniard_found = False | |
| 89 | for resident in residents: | |
| 90 | if resident['nationality'] == 'Spaniard' and resident['pet'] == 'dog': | |
| 91 | spaniard_found = True | |
| 92 | break | |
| 93 | if not spaniard_found: | |
| 94 | valid = False | |
| 95 | ||
| 96 | # Edge Case: The person in the green house drinks coffee (constraint 4) | |
| 97 | green_coffee_found = False | |
| 98 | for resident in residents: | |
| 99 | if resident['color'] == 'green' and resident['beverage'] == 'coffee': | |
| 100 | green_coffee_found = True | |
| 101 | break | |
| 102 | if not green_coffee_found: | |
| 103 | valid = False | |
| 104 | ||
| 105 | # Edge Case: The Ukrainian drinks tea (constraint 5) | |
| 106 | ukrainian_tea_found = False | |
| 107 | for resident in residents: | |
| 108 | if resident['nationality'] == 'Ukrainian' and resident['beverage'] == 'tea': | |
| 109 | ukrainian_tea_found = True | |
| 110 | break | |
| 111 | if not ukrainian_tea_found: | |
| 112 | valid = False | |
| 113 | ||
| 114 | # Edge Case: The snail owner likes to go dancing (constraint 7) | |
| 115 | snail_dancing_found = False | |
| 116 | for resident in residents: | |
| 117 | if resident['pet'] == 'snail' and resident['hobby'] == 'dancing': | |
| 118 | snail_dancing_found = True | |
| 119 | break | |
| 120 | if not snail_dancing_found: | |
| 121 | valid = False | |
| 122 | ||
| 123 | # Edge Case: The person in the yellow house is a painter (constraint 8) | |
| 124 | yellow_painter_found = False | |
| 125 | for resident in residents: | |
| 126 | if resident['color'] == 'yellow' and resident['hobby'] == 'painting': | |
| 127 | yellow_painter_found = True | |
| 128 | break | |
| 129 | if not yellow_painter_found: | |
| 130 | valid = False | |
| 131 | ||
| 132 | # Edge Case: The person who enjoys reading lives in the house next to the person with the fox (constraint 11) | |
| 133 | reading_index = None | |
| 134 | fox_index = None | |
| 135 | try: | |
| 136 | for i, resident in enumerate(residents): | |
| 137 | if resident['hobby'] == 'reading': | |
| 138 | reading_index = i | |
| 139 | if resident['pet'] == 'fox': | |
| 140 | fox_index = i | |
| 141 | if reading_index is None or fox_index is None or abs(reading_index - fox_index) != 1: | |
| 142 | valid = False | |
| 143 | except: | |
| 144 | valid = False | |
| 145 | ||
| 146 | # Edge Case: The painter's house is next to the house with the horse (constraint 12) | |
| 147 | painting_index = None | |
| 148 | horse_index = None | |
| 149 | try: | |
| 150 | for i, resident in enumerate(residents): | |
| 151 | if resident['hobby'] == 'painting': | |
| 152 | painting_index = i | |
| 153 | if resident['pet'] == 'horse': | |
| 154 | horse_index = i | |
| 155 | if painting_index is None or horse_index is None or abs(painting_index - horse_index) != 1: | |
| 156 | valid = False | |
| 157 | except: | |
| 158 | valid = False | |
| 159 | ||
| 160 | # Edge Case: The person who plays football drinks orange juice (constraint 13) | |
| 161 | football_orange_found = False | |
| 162 | for resident in residents: | |
| 163 | if resident['hobby'] == 'football' and resident['beverage'] == 'orange juice': | |
| 164 | football_orange_found = True | |
| 165 | break | |
| 166 | if not football_orange_found: | |
| 167 | valid = False | |
| 168 | ||
| 169 | # Edge Case: The Japanese person plays chess (constraint 14) | |
| 170 | japanese_chess_found = False | |
| 171 | for resident in residents: | |
| 172 | if resident['nationality'] == 'Japanese' and resident['hobby'] == 'chess': | |
| 173 | japanese_chess_found = True | |
| 174 | break | |
| 175 | if not japanese_chess_found: | |
| 176 | valid = False | |
| 177 | ||
| 178 | if valid: | |
| 179 | return residents | |
| 180 | return [] |
| Test Name | Status |
|---|---|
test_resident_who_drinks_water | Pass |
test_resident_who_owns_zebra | Pass |
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