|
| 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": """0: 4 1 5 |
| 38 | +1: 2 3 | 3 2 |
| 39 | +2: 4 4 | 5 5 |
| 40 | +3: 4 5 | 5 4 |
| 41 | +4: "a" |
| 42 | +5: "b" |
| 43 | +
|
| 44 | +ababbb |
| 45 | +bababa |
| 46 | +abbbab |
| 47 | +aaabbb |
| 48 | +aaaabbb""", |
| 49 | + "expected": ["2", "Unknown"], |
| 50 | +} |
| 51 | + |
| 52 | +test += 1 |
| 53 | +test_data[test] = { |
| 54 | + "input": """42: 9 14 | 10 1 |
| 55 | +9: 14 27 | 1 26 |
| 56 | +10: 23 14 | 28 1 |
| 57 | +1: "a" |
| 58 | +11: 42 31 |
| 59 | +5: 1 14 | 15 1 |
| 60 | +19: 14 1 | 14 14 |
| 61 | +12: 24 14 | 19 1 |
| 62 | +16: 15 1 | 14 14 |
| 63 | +31: 14 17 | 1 13 |
| 64 | +6: 14 14 | 1 14 |
| 65 | +2: 1 24 | 14 4 |
| 66 | +0: 8 11 |
| 67 | +13: 14 3 | 1 12 |
| 68 | +15: 1 | 14 |
| 69 | +17: 14 2 | 1 7 |
| 70 | +23: 25 1 | 22 14 |
| 71 | +28: 16 1 |
| 72 | +4: 1 1 |
| 73 | +20: 14 14 | 1 15 |
| 74 | +3: 5 14 | 16 1 |
| 75 | +27: 1 6 | 14 18 |
| 76 | +14: "b" |
| 77 | +21: 14 1 | 1 14 |
| 78 | +25: 1 1 | 1 14 |
| 79 | +22: 14 14 |
| 80 | +8: 42 |
| 81 | +26: 14 22 | 1 20 |
| 82 | +18: 15 15 |
| 83 | +7: 14 5 | 1 21 |
| 84 | +24: 14 1 |
| 85 | +
|
| 86 | +abbbbbabbbaaaababbaabbbbabababbbabbbbbbabaaaa |
| 87 | +bbabbbbaabaabba |
| 88 | +babbbbaabbbbbabbbbbbaabaaabaaa |
| 89 | +aaabbbbbbaaaabaababaabababbabaaabbababababaaa |
| 90 | +bbbbbbbaaaabbbbaaabbabaaa |
| 91 | +bbbababbbbaaaaaaaabbababaaababaabab |
| 92 | +ababaaaaaabaaab |
| 93 | +ababaaaaabbbaba |
| 94 | +baabbaaaabbaaaababbaababb |
| 95 | +abbbbabbbbaaaababbbbbbaaaababb |
| 96 | +aaaaabbaabaaaaababaa |
| 97 | +aaaabbaaaabbaaa |
| 98 | +aaaabbaabbaaaaaaabbbabbbaaabbaabaaa |
| 99 | +babaaabbbaaabaababbaabababaaab |
| 100 | +aabbbbbaabbbaaaaaabbbbbababaaaaabbaaabba""", |
| 101 | + "expected": ["3", "12"], |
| 102 | +} |
| 103 | + |
| 104 | +test = "real" |
| 105 | +input_file = os.path.join( |
| 106 | + os.path.dirname(__file__), |
| 107 | + "Inputs", |
| 108 | + os.path.basename(__file__).replace(".py", ".txt"), |
| 109 | +) |
| 110 | +test_data[test] = { |
| 111 | + "input": open(input_file, "r+").read(), |
| 112 | + "expected": ["198", "372"], |
| 113 | +} |
| 114 | + |
| 115 | + |
| 116 | +# -------------------------------- Control program execution ------------------------- # |
| 117 | + |
| 118 | +case_to_test = "real" |
| 119 | +part_to_test = 2 |
| 120 | + |
| 121 | +# -------------------------------- Initialize some variables ------------------------- # |
| 122 | + |
| 123 | +puzzle_input = test_data[case_to_test]["input"] |
| 124 | +puzzle_expected_result = test_data[case_to_test]["expected"][part_to_test - 1] |
| 125 | +puzzle_actual_result = "Unknown" |
| 126 | + |
| 127 | + |
| 128 | +# -------------------------------- Actual code execution ----------------------------- # |
| 129 | + |
| 130 | +if part_to_test == 1: |
| 131 | + rules_raw, messages = puzzle_input.split("\n\n") |
| 132 | + |
| 133 | + rules_with_subrules = {} |
| 134 | + regexes = {} |
| 135 | + for rule in rules_raw.split("\n"): |
| 136 | + if '"' in rule: |
| 137 | + regexes[int(rule.split(":")[0])] = rule.split('"')[1] |
| 138 | + else: |
| 139 | + nr, elements = rule.split(": ") |
| 140 | + nr = int(nr) |
| 141 | + rules_with_subrules[nr] = "( " + elements + " )" |
| 142 | + |
| 143 | + while rules_with_subrules: |
| 144 | + for nr in regexes: |
| 145 | + for rule in rules_with_subrules: |
| 146 | + rules_with_subrules[rule] = rules_with_subrules[rule].replace( |
| 147 | + " " + str(nr) + " ", " ( " + regexes[nr] + " ) " |
| 148 | + ) |
| 149 | + regexes.update( |
| 150 | + { |
| 151 | + rule: rules_with_subrules[rule] |
| 152 | + for rule in rules_with_subrules |
| 153 | + if len(ints(rules_with_subrules[rule])) == 0 |
| 154 | + } |
| 155 | + ) |
| 156 | + rules_with_subrules = { |
| 157 | + rule: rules_with_subrules[rule] |
| 158 | + for rule in rules_with_subrules |
| 159 | + if len(ints(rules_with_subrules[rule])) != 0 |
| 160 | + } |
| 161 | + |
| 162 | + regexes = {rule: regexes[rule].replace(" ", "") for rule in regexes} |
| 163 | + messages_OK = sum( |
| 164 | + [ |
| 165 | + 1 |
| 166 | + for message in messages.split("\n") |
| 167 | + if re.match("^" + regexes[0] + "$", message) |
| 168 | + ] |
| 169 | + ) |
| 170 | + puzzle_actual_result = messages_OK |
| 171 | + |
| 172 | + |
| 173 | +else: |
| 174 | + rules_raw, messages = puzzle_input.split("\n\n") |
| 175 | + |
| 176 | + rules_with_subrules = {} |
| 177 | + regexes = {} |
| 178 | + for rule in rules_raw.split("\n"): |
| 179 | + if "8:" in rule[:2]: |
| 180 | + rule = "8: 42 +" |
| 181 | + elif "11:" in rule[:3]: |
| 182 | + rule = "11: 42 31 " |
| 183 | + for i in range( |
| 184 | + 2, 10 |
| 185 | + ): # Note: 10 is arbitraty - it works well with 5 as well. |
| 186 | + rule += "| " + "42 " * i + "31 " * i |
| 187 | + |
| 188 | + if '"' in rule: |
| 189 | + regexes[int(rule.split(":")[0])] = rule.split('"')[1] |
| 190 | + else: |
| 191 | + nr, elements = rule.split(": ") |
| 192 | + nr = int(nr) |
| 193 | + rules_with_subrules[nr] = "( " + elements + " )" |
| 194 | + |
| 195 | + while rules_with_subrules: |
| 196 | + for nr in regexes: |
| 197 | + for rule in rules_with_subrules: |
| 198 | + rules_with_subrules[rule] = rules_with_subrules[rule].replace( |
| 199 | + " " + str(nr) + " ", " ( " + regexes[nr] + " ) " |
| 200 | + ) |
| 201 | + |
| 202 | + regexes.update( |
| 203 | + { |
| 204 | + rule: rules_with_subrules[rule] |
| 205 | + .replace(" ", "") |
| 206 | + .replace("(a)", "a") |
| 207 | + .replace("(b)", "b") |
| 208 | + for rule in rules_with_subrules |
| 209 | + if len(ints(rules_with_subrules[rule])) == 0 |
| 210 | + } |
| 211 | + ) |
| 212 | + rules_with_subrules = { |
| 213 | + rule: rules_with_subrules[rule] |
| 214 | + for rule in rules_with_subrules |
| 215 | + if len(ints(rules_with_subrules[rule])) != 0 |
| 216 | + } |
| 217 | + |
| 218 | + regexes = {rule: regexes[rule] for rule in regexes} |
| 219 | + messages_OK = sum( |
| 220 | + [ |
| 221 | + 1 |
| 222 | + for message in messages.split("\n") |
| 223 | + if re.match("^" + regexes[0] + "$", message) |
| 224 | + ] |
| 225 | + ) |
| 226 | + puzzle_actual_result = messages_OK |
| 227 | + |
| 228 | +# -------------------------------- Outputs / results --------------------------------- # |
| 229 | + |
| 230 | +print("Case :", case_to_test, "- Part", part_to_test) |
| 231 | +print("Expected result : " + str(puzzle_expected_result)) |
| 232 | +print("Actual result : " + str(puzzle_actual_result)) |
| 233 | +# Date created: 2020-12-19 06:00:00.865376 |
| 234 | +# Part 1: 2020-12-19 06:24:39 |
| 235 | +# Part 1: 2020-12-19 07:22:52 |
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