|
| 1 | +# -------------------------------- Input data ---------------------------------------- # |
| 2 | +import os, grid, graph, dot, assembly, re, itertools |
| 3 | +from collections import Counter, deque, defaultdict |
| 4 | + |
| 5 | +from compass import * |
| 6 | + |
| 7 | + |
| 8 | +# This functions come from https://github.com/mcpower/adventofcode - Thanks! |
| 9 | +def lmap(func, *iterables): |
| 10 | + return list(map(func, *iterables)) |
| 11 | + |
| 12 | + |
| 13 | +def ints(s: str): |
| 14 | + return lmap(int, re.findall(r"-?\d+", s)) # thanks mserrano! |
| 15 | + |
| 16 | + |
| 17 | +def positive_ints(s: str): |
| 18 | + return lmap(int, re.findall(r"\d+", s)) # thanks mserrano! |
| 19 | + |
| 20 | + |
| 21 | +def floats(s: str): |
| 22 | + return lmap(float, re.findall(r"-?\d+(?:\.\d+)?", s)) |
| 23 | + |
| 24 | + |
| 25 | +def positive_floats(s: str): |
| 26 | + return lmap(float, re.findall(r"\d+(?:\.\d+)?", s)) |
| 27 | + |
| 28 | + |
| 29 | +def words(s: str): |
| 30 | + return re.findall(r"[a-zA-Z]+", s) |
| 31 | + |
| 32 | + |
| 33 | +test_data = {} |
| 34 | + |
| 35 | +test = 1 |
| 36 | +test_data[test] = { |
| 37 | + "input": """light red bags contain 1 bright white bag, 2 muted yellow bags. |
| 38 | +dark orange bags contain 3 bright white bags, 4 muted yellow bags. |
| 39 | +bright white bags contain 1 shiny gold bag. |
| 40 | +muted yellow bags contain 2 shiny gold bags, 9 faded blue bags. |
| 41 | +shiny gold bags contain 1 dark olive bag, 2 vibrant plum bags. |
| 42 | +dark olive bags contain 3 faded blue bags, 4 dotted black bags. |
| 43 | +vibrant plum bags contain 5 faded blue bags, 6 dotted black bags. |
| 44 | +faded blue bags contain no other bags. |
| 45 | +dotted black bags contain no other bags.""", |
| 46 | + "expected": ["4", "Unknown"], |
| 47 | +} |
| 48 | + |
| 49 | +test = 2 |
| 50 | +test_data[test] = { |
| 51 | + "input": """shiny gold bags contain 2 dark red bags. |
| 52 | +dark red bags contain 2 dark orange bags. |
| 53 | +dark orange bags contain 2 dark yellow bags. |
| 54 | +dark yellow bags contain 2 dark green bags. |
| 55 | +dark green bags contain 2 dark blue bags. |
| 56 | +dark blue bags contain 2 dark violet bags. |
| 57 | +dark violet bags contain no other bags.""", |
| 58 | + "expected": ["Unknown", "126"], |
| 59 | +} |
| 60 | + |
| 61 | +test = "real" |
| 62 | +input_file = os.path.join( |
| 63 | + os.path.dirname(__file__), |
| 64 | + "Inputs", |
| 65 | + os.path.basename(__file__).replace(".py", ".txt"), |
| 66 | +) |
| 67 | +test_data[test] = { |
| 68 | + "input": open(input_file, "r+").read(), |
| 69 | + "expected": ["300", "8030"], |
| 70 | +} |
| 71 | + |
| 72 | + |
| 73 | +# -------------------------------- Control program execution ------------------------- # |
| 74 | +case_to_test = "real" |
| 75 | +part_to_test = 2 |
| 76 | + |
| 77 | +# -------------------------------- Initialize some variables ------------------------- # |
| 78 | + |
| 79 | +puzzle_input = test_data[case_to_test]["input"] |
| 80 | +puzzle_expected_result = test_data[case_to_test]["expected"][part_to_test - 1] |
| 81 | +puzzle_actual_result = "Unknown" |
| 82 | + |
| 83 | + |
| 84 | +# -------------------------------- Actual code execution ----------------------------- # |
| 85 | + |
| 86 | +if part_to_test == 1: |
| 87 | + results = [] |
| 88 | + for string in puzzle_input.split("\n"): |
| 89 | + results.append(re.findall("[a-z ]* bags?", string)) |
| 90 | + |
| 91 | + combinations = [] |
| 92 | + for result in results: |
| 93 | + if len(result) == 1: |
| 94 | + print("No match for", result) |
| 95 | + else: |
| 96 | + combinations.append( |
| 97 | + { |
| 98 | + "out": result[0].replace("bags", "bag"), |
| 99 | + "in": [x.replace("bags", "bag")[1:] for x in result[1:]], |
| 100 | + } |
| 101 | + ) |
| 102 | + |
| 103 | + contain_gold = set(["shiny gold bag"]) |
| 104 | + # There is certainly a clever way to reduce how many loops I do, but I don't know it (yet) |
| 105 | + for i in range(len(combinations)): |
| 106 | + for combination in combinations: |
| 107 | + if any( |
| 108 | + [gold_container in combination["in"] for gold_container in contain_gold] |
| 109 | + ): |
| 110 | + contain_gold.add(combination["out"]) |
| 111 | + print(len(contain_gold), i, len(combinations)) |
| 112 | + |
| 113 | + puzzle_actual_result = len(contain_gold) - 1 |
| 114 | + |
| 115 | + |
| 116 | +else: |
| 117 | + results = [] |
| 118 | + for string in puzzle_input.split("\n"): |
| 119 | + results.append(re.findall("([0-9]* )?([a-z ]*) bags?", string)) |
| 120 | + |
| 121 | + combinations = [] |
| 122 | + for result in results: |
| 123 | + if len(result) == 1: |
| 124 | + bags = result[0][1].split(" bags contain no ") |
| 125 | + combinations.append({"out": bags[0], "in": []}) |
| 126 | + else: |
| 127 | + combinations.append( |
| 128 | + {"out": result[0][1], "in": {x[1]: int(x[0]) for x in result[1:]}} |
| 129 | + ) |
| 130 | + |
| 131 | + gold_contains = defaultdict(int) |
| 132 | + gold_contains["shiny gold"] = 1 |
| 133 | + gold_contains["total"] = -1 |
| 134 | + |
| 135 | + while len(gold_contains) > 1: |
| 136 | + for combination in combinations: |
| 137 | + if combination["out"] in gold_contains: |
| 138 | + for containee in combination["in"]: |
| 139 | + # Add those bags to the count |
| 140 | + gold_contains[containee] += ( |
| 141 | + combination["in"][containee] * gold_contains[combination["out"]] |
| 142 | + ) |
| 143 | + # Add the "out" bag to the count & remove it from the list |
| 144 | + # This ensures we don't loop over the same bag twice |
| 145 | + gold_contains["total"] += gold_contains[combination["out"]] |
| 146 | + del gold_contains[combination["out"]] |
| 147 | + |
| 148 | + print(sum(gold_contains.values()), gold_contains) |
| 149 | + |
| 150 | + puzzle_actual_result = gold_contains["total"] |
| 151 | + |
| 152 | + |
| 153 | +# -------------------------------- Outputs / results --------------------------------- # |
| 154 | + |
| 155 | +print("Case :", case_to_test, "- Part", part_to_test) |
| 156 | +print("Expected result : " + str(puzzle_expected_result)) |
| 157 | +print("Actual result : " + str(puzzle_actual_result)) |
0 commit comments