diff --git a/2023/02/README.md b/2023/02/README.md new file mode 100644 index 0000000..e7bdf59 --- /dev/null +++ b/2023/02/README.md @@ -0,0 +1,59 @@ +# 2023 Day 02: Cube Conundrum +Copyright (c) Eric Wastl +#### [Direct Link](https://adventofcode.com/2023/day/2) + +## Part 1 + +You're launched high into the atmosphere! The apex of your trajectory just barely reaches the surface of a large island floating in the sky. You gently land in a fluffy pile of leaves. It's quite cold, but you don't see much snow. An Elf runs over to greet you. + +The Elf explains that you've arrived at **Snow Island** and apologizes for the lack of snow. He'll be happy to explain the situation, but it's a bit of a walk, so you have some time. They don't get many visitors up here; would you like to play a game in the meantime? + +As you walk, the Elf shows you a small bag and some cubes which are either red, green, or blue. Each time you play this game, he will hide a secret number of cubes of each color in the bag, and your goal is to figure out information about the number of cubes. + +To get information, once a bag has been loaded with cubes, the Elf will reach into the bag, grab a handful of random cubes, show them to you, and then put them back in the bag. He'll do this a few times per game. + +You play several games and record the information from each game (your puzzle input). Each game is listed with its ID number (like the `11` in `Game 11: ...`) followed by a semicolon-separated list of subsets of cubes that were revealed from the bag (like `3 red, 5 green, 4 blue`). + +For example, the record of a few games might look like this: + +``` +Game 1: 3 blue, 4 red; 1 red, 2 green, 6 blue; 2 green +Game 2: 1 blue, 2 green; 3 green, 4 blue, 1 red; 1 green, 1 blue +Game 3: 8 green, 6 blue, 20 red; 5 blue, 4 red, 13 green; 5 green, 1 red +Game 4: 1 green, 3 red, 6 blue; 3 green, 6 red; 3 green, 15 blue, 14 red +Game 5: 6 red, 1 blue, 3 green; 2 blue, 1 red, 2 green +``` + +In game 1, three sets of cubes are revealed from the bag (and then put back again). The first set is 3 blue cubes and 4 red cubes; the second set is 1 red cube, 2 green cubes, and 6 blue cubes; the third set is only 2 green cubes. + +The Elf would first like to know which games would have been possible if the bag contained **only 12 red cubes, 13 green cubes, and 14 blue cubes**? + +In the example above, games 1, 2, and 5 would have been **possible** if the bag had been loaded with that configuration. However, game 3 would have been **impossible** because at one point the Elf showed you 20 red cubes at once; similarly, game 4 would also have been **impossible** because the Elf showed you 15 blue cubes at once. If you add up the IDs of the games that would have been possible, you get **`8`**. + +Determine which games would have been possible if the bag had been loaded with only 12 red cubes, 13 green cubes, and 14 blue cubes. **What is the sum of the IDs of those games?** + +## Part 2 + +The Elf says they've stopped producing snow because they aren't getting any **water**! He isn't sure why the water stopped; however, he can show you how to get to the water source to check it out for yourself. It's just up ahead! + +As you continue your walk, the Elf poses a second question: in each game you played, what is the **fewest number of cubes of each color** that could have been in the bag to make the game possible? + +Again consider the example games from earlier: + +``` +Game 1: 3 blue, 4 red; 1 red, 2 green, 6 blue; 2 green +Game 2: 1 blue, 2 green; 3 green, 4 blue, 1 red; 1 green, 1 blue +Game 3: 8 green, 6 blue, 20 red; 5 blue, 4 red, 13 green; 5 green, 1 red +Game 4: 1 green, 3 red, 6 blue; 3 green, 6 red; 3 green, 15 blue, 14 red +Game 5: 6 red, 1 blue, 3 green; 2 blue, 1 red, 2 green +``` + +- In game 1, the game could have been played with as few as 4 red, 2 green, and 6 blue cubes. If any color had even one fewer cube, the game would have been impossible. +- Game 2 could have been played with a minimum of 1 red, 3 green, and 4 blue cubes. +- Game 3 must have been played with at least 20 red, 13 green, and 6 blue cubes. +- Game 4 required at least 14 red, 3 green, and 15 blue cubes. +- Game 5 needed no fewer than 6 red, 3 green, and 2 blue cubes in the bag. + +The **power** of a set of cubes is equal to the numbers of red, green, and blue cubes multiplied together. The power of the minimum set of cubes in game 1 is `48`. In games 2-5 it was `12`, `1560`, `630`, and `36`, respectively. Adding up these five powers produces the sum **`2286`**. + +For each game, find the minimum set of cubes that must have been present. **What is the sum of the power of these sets?** diff --git a/2023/02/code.py b/2023/02/code.py new file mode 100644 index 0000000..18b756c --- /dev/null +++ b/2023/02/code.py @@ -0,0 +1,41 @@ +# SPDX-License-Identifier: MIT +# Copyright (c) 2023 Akumatic +# +# https://adventofcode.com/2023/day/2 + +import re + +def read_file(filename: str = "input.txt") -> list: + with open(f"{__file__.rstrip('code.py')}{filename}", "r") as f: + return [parse_game(line.strip()) for line in f.readlines()] + +def parse_game(game: str) -> list: + result = list() + sets = game.split(": ")[1].split("; ") + for cubes in sets: + numbers = [int(num) for num in re.findall(r'\d+', cubes)] + colors = re.findall(r'(red|blue|green)', cubes) + result.append(list(zip(numbers, colors))) + return result + +def game_is_possible(sets: list) -> bool: + limits = {"red": 12, "green": 13, "blue": 14} + return all(not any(cubes[0] > limits[cubes[1]] for cubes in _set) for _set in sets) + +def calculate_power(sets: list) -> int: + dice = {"red": 0, "green": 0, "blue": 0} + for _set in sets: + for cubes in _set: + dice[cubes[1]] = max(cubes[0], dice[cubes[1]]) + return dice["red"] * dice["green"] * dice["blue"] + +def part1(games: list) -> int: + return sum(id + 1 for id, game in enumerate(games) if game_is_possible(game)) + +def part2(games: list) -> int: + return sum(calculate_power(game) for game in games) + +if __name__ == "__main__": + vals = read_file() + print(f"Part 1: {part1(vals)}") + print(f"Part 2: {part2(vals)}") \ No newline at end of file diff --git a/2023/02/input.txt b/2023/02/input.txt new file mode 100644 index 0000000..61950d0 --- /dev/null +++ b/2023/02/input.txt @@ -0,0 +1,100 @@ +Game 1: 10 green, 5 blue; 1 red, 9 green, 10 blue; 5 blue, 6 green, 2 red; 7 green, 9 blue, 1 red; 2 red, 10 blue, 10 green; 7 blue, 1 red +Game 2: 7 green, 5 red, 3 blue; 4 blue, 7 green, 8 red; 9 blue, 4 green; 6 green, 3 red, 4 blue +Game 3: 2 green, 4 blue, 13 red; 15 blue, 9 red, 3 green; 3 red, 18 blue, 3 green; 6 red, 4 green, 2 blue; 6 blue, 13 red +Game 4: 9 red, 1 green, 13 blue; 3 red; 2 blue, 6 red, 1 green; 12 blue, 2 red +Game 5: 1 red, 8 green; 2 red, 8 green, 8 blue; 1 red, 11 green; 5 blue, 11 green; 11 blue, 2 green; 10 blue, 2 red, 1 green +Game 6: 1 red, 12 blue; 20 blue, 3 green, 2 red; 4 red, 15 blue +Game 7: 13 red, 9 green, 1 blue; 8 green, 2 red, 6 blue; 4 green, 5 blue; 7 red, 3 green, 7 blue; 19 red, 5 blue, 1 green +Game 8: 11 red, 14 green, 4 blue; 2 blue, 5 green, 16 red; 18 blue, 11 red, 2 green; 2 blue, 15 red; 13 green, 8 blue +Game 9: 7 green, 5 blue, 11 red; 10 red, 7 green, 4 blue; 1 red; 6 green, 2 blue, 9 red; 8 green, 10 red, 6 blue; 5 red, 5 green, 7 blue +Game 10: 4 blue, 2 green, 1 red; 5 green, 2 red, 1 blue; 3 green, 8 blue, 1 red; 2 blue, 6 green, 2 red; 1 red, 4 green, 2 blue +Game 11: 3 red, 4 blue; 8 blue, 7 green, 2 red; 7 blue, 1 red, 6 green; 13 blue, 4 green +Game 12: 2 red, 3 blue, 4 green; 2 blue, 9 red, 8 green; 10 red, 1 blue; 1 green, 7 red, 3 blue; 7 red, 2 blue, 9 green +Game 13: 12 red, 6 green, 2 blue; 15 green, 2 red, 4 blue; 7 green, 1 red, 3 blue +Game 14: 9 green, 4 red; 6 blue, 1 red, 7 green; 3 blue, 5 green +Game 15: 7 red, 3 green, 2 blue; 3 blue, 4 green; 4 blue, 4 green, 9 red +Game 16: 12 blue, 11 green, 4 red; 8 blue, 9 red, 10 green; 9 green, 11 blue, 13 red; 10 red, 5 blue, 6 green; 2 red; 2 blue, 5 green, 5 red +Game 17: 3 red, 2 green, 2 blue; 1 blue, 3 red, 1 green; 10 green +Game 18: 3 green, 1 blue, 4 red; 12 red, 5 green; 3 red, 3 green, 3 blue; 13 red, 2 blue +Game 19: 13 blue, 8 green, 6 red; 10 red, 12 blue; 8 green, 13 red, 9 blue; 13 green, 3 red, 5 blue; 5 green, 1 blue, 2 red +Game 20: 19 red, 13 blue, 4 green; 1 red, 4 green, 8 blue; 14 red, 6 blue, 7 green; 11 red, 13 blue, 8 green +Game 21: 3 green, 13 red, 7 blue; 1 blue, 1 green, 1 red; 3 blue, 15 red, 5 green; 3 blue, 15 red, 2 green; 6 green, 9 red, 14 blue +Game 22: 2 red, 6 green, 4 blue; 6 green, 2 red; 1 blue, 4 red, 3 green; 11 green, 7 blue, 1 red; 4 red, 8 green, 3 blue +Game 23: 14 blue; 3 green, 2 red, 3 blue; 5 blue, 1 red +Game 24: 12 red; 5 blue, 16 red; 2 blue, 1 green, 16 red; 1 green, 11 red; 2 blue, 8 red, 1 green +Game 25: 4 red, 11 blue, 1 green; 7 red, 9 blue; 6 blue, 10 green +Game 26: 3 green, 13 red; 7 blue, 13 red, 5 green; 5 blue, 8 green, 11 red; 7 blue, 18 green, 6 red +Game 27: 6 green, 6 red, 5 blue; 2 blue, 4 green, 11 red; 15 red, 6 green; 4 green, 12 red, 2 blue; 3 blue, 5 red +Game 28: 16 blue, 6 red, 1 green; 7 red, 4 green, 10 blue; 1 red, 4 green +Game 29: 5 blue, 4 red; 6 blue, 3 red, 4 green; 2 green, 4 red, 5 blue; 1 green, 7 blue, 4 red; 3 green, 2 blue, 4 red +Game 30: 2 green; 14 green, 1 blue, 2 red; 5 red, 14 green +Game 31: 9 blue, 6 red, 7 green; 20 red, 1 green, 15 blue; 6 blue, 7 green, 17 red; 2 blue, 3 green, 6 red; 1 red, 3 blue, 2 green; 5 green, 18 red, 6 blue +Game 32: 7 green, 9 blue, 8 red; 8 red, 13 green, 19 blue; 2 red, 9 blue, 3 green; 9 green, 6 blue, 6 red +Game 33: 6 blue, 12 red; 13 blue, 3 green, 15 red; 5 red, 10 blue, 4 green; 11 blue, 6 red +Game 34: 5 green, 16 blue, 6 red; 10 green, 1 blue, 4 red; 2 red, 7 blue, 6 green; 12 green, 4 blue, 4 red +Game 35: 11 green, 3 blue; 1 red, 6 blue, 10 green; 11 green, 3 blue; 1 red, 2 blue; 11 green, 3 blue, 1 red; 3 blue, 2 green +Game 36: 10 green, 6 red, 4 blue; 3 green, 3 blue, 5 red; 6 red, 5 blue, 10 green +Game 37: 8 red, 7 blue, 5 green; 8 blue, 5 green, 14 red; 8 red, 2 blue +Game 38: 4 green, 1 red, 4 blue; 8 green, 11 blue; 7 red, 5 blue +Game 39: 2 blue, 4 red, 4 green; 8 green, 8 red, 1 blue; 3 red +Game 40: 4 green, 3 red, 14 blue; 4 blue, 13 green, 3 red; 12 green, 2 red, 2 blue; 8 green, 1 red, 11 blue; 4 green, 1 red, 1 blue +Game 41: 4 red, 1 green, 2 blue; 4 red; 4 red +Game 42: 12 red, 8 blue, 1 green; 8 green, 6 red, 5 blue; 12 green, 3 red, 13 blue; 1 red, 2 green, 8 blue; 3 green, 5 red, 6 blue +Game 43: 12 green, 3 blue; 13 green, 7 red, 5 blue; 10 green, 4 red, 4 blue +Game 44: 6 green, 2 red, 4 blue; 10 green, 6 red; 5 blue, 15 red, 13 green; 1 blue, 6 red, 3 green; 9 red, 5 green, 3 blue; 6 green, 4 blue, 5 red +Game 45: 10 blue, 14 green; 2 green, 2 red, 12 blue; 7 green, 1 red; 8 blue, 6 green, 1 red +Game 46: 8 red, 10 green, 15 blue; 9 green, 3 red, 17 blue; 2 blue, 10 red, 5 green; 11 blue, 3 green, 9 red; 5 red, 11 blue, 1 green; 7 green, 5 red, 16 blue +Game 47: 10 blue, 1 green, 1 red; 3 red, 8 blue, 7 green; 8 red, 9 blue; 2 green, 8 red, 1 blue +Game 48: 5 blue, 2 green; 2 red, 7 green, 2 blue; 1 blue, 3 green, 1 red +Game 49: 2 green, 6 red, 5 blue; 6 green; 4 blue, 17 red, 5 green +Game 50: 5 blue, 10 green; 6 blue, 4 red, 9 green; 7 red, 4 blue; 7 red, 3 blue, 14 green; 5 blue, 10 green, 9 red; 13 green, 1 blue, 9 red +Game 51: 1 blue, 15 green; 6 green, 2 blue; 5 blue, 1 red, 12 green +Game 52: 3 red, 15 green; 7 blue, 1 red, 14 green; 8 green, 1 red, 12 blue; 1 red, 9 green, 7 blue +Game 53: 2 green, 4 red; 1 red, 1 blue; 3 blue, 1 green; 2 red, 2 blue, 2 green +Game 54: 7 blue, 13 red, 7 green; 1 red, 2 green; 11 red, 10 green, 5 blue; 10 red, 8 green, 5 blue; 8 green, 12 blue, 12 red +Game 55: 18 red, 3 green, 5 blue; 5 green, 3 blue, 7 red; 3 blue, 3 green, 4 red +Game 56: 14 red, 17 green, 2 blue; 5 green, 13 red, 1 blue; 11 red, 20 green +Game 57: 3 red, 6 green, 2 blue; 3 red, 2 green; 2 green, 5 red; 1 blue, 1 green, 2 red +Game 58: 7 blue, 5 green, 9 red; 10 red, 5 green, 9 blue; 2 blue, 3 red, 8 green; 8 blue, 9 red; 7 red, 3 blue, 7 green; 2 green, 7 red, 1 blue +Game 59: 4 green, 3 blue; 10 red, 4 green, 4 blue; 2 green, 14 red, 12 blue; 1 blue, 1 green, 13 red; 10 red, 3 green, 3 blue; 2 green +Game 60: 9 red, 13 blue; 2 green, 5 red, 9 blue; 3 green, 10 blue +Game 61: 2 red, 8 green, 4 blue; 3 green, 2 red; 10 red, 9 green, 12 blue; 11 green, 17 blue, 3 red; 7 green, 1 red, 14 blue +Game 62: 1 green, 5 red, 13 blue; 5 blue, 1 green, 8 red; 2 green, 8 blue, 3 red; 1 green, 8 red +Game 63: 8 green, 15 red, 2 blue; 4 blue, 3 red, 12 green; 4 green, 1 blue, 17 red; 9 green, 18 red, 4 blue +Game 64: 7 blue, 17 red, 17 green; 3 blue, 4 green, 3 red; 4 red, 19 green, 1 blue; 11 blue, 14 red; 4 blue, 19 green, 7 red; 1 red, 10 green, 11 blue +Game 65: 1 blue, 17 red, 5 green; 17 red, 3 blue, 2 green; 10 blue, 9 green +Game 66: 5 blue, 6 red; 8 red, 2 blue, 1 green; 2 green, 3 blue; 8 blue, 10 red; 1 green, 2 red, 5 blue; 1 red, 3 blue +Game 67: 12 green, 16 blue, 12 red; 15 red, 1 blue, 3 green; 10 red, 3 green, 10 blue; 2 blue, 6 green, 6 red; 9 red, 8 blue, 7 green +Game 68: 10 red, 7 blue; 12 blue, 9 red; 12 blue, 9 red, 2 green +Game 69: 14 blue, 3 red, 3 green; 7 green, 7 red, 2 blue; 8 blue, 4 green, 8 red; 6 blue, 14 red, 3 green +Game 70: 7 blue, 6 green, 2 red; 2 red, 4 blue, 4 green; 2 red, 5 blue, 3 green; 6 green, 2 blue; 5 blue, 2 red, 2 green +Game 71: 7 green, 15 blue, 3 red; 15 blue, 15 red, 2 green; 10 red, 9 blue; 6 green, 20 blue, 11 red; 12 blue, 3 green, 7 red; 1 red, 7 blue +Game 72: 2 green, 9 blue, 7 red; 5 green, 3 blue, 5 red; 10 blue, 8 red, 7 green +Game 73: 18 blue, 5 red, 1 green; 18 blue, 3 red, 9 green; 2 red, 4 blue, 9 green; 5 blue, 5 red; 2 blue, 10 green, 6 red +Game 74: 1 blue, 10 green, 5 red; 4 green, 12 blue, 6 red; 7 red, 13 green, 3 blue; 5 blue, 8 green, 4 red +Game 75: 4 red, 2 blue, 5 green; 2 blue, 7 red, 4 green; 2 blue, 4 green, 3 red; 12 green, 2 blue; 10 green, 1 blue, 2 red +Game 76: 8 green, 6 blue, 5 red; 1 red, 2 blue, 9 green; 7 red, 9 green; 5 green, 1 blue, 11 red +Game 77: 3 blue, 10 red, 9 green; 7 blue, 6 red, 4 green; 4 red, 1 green, 8 blue +Game 78: 2 blue, 1 red, 14 green; 11 green, 1 blue; 15 green, 1 red +Game 79: 3 green, 17 blue, 1 red; 3 red, 2 blue, 10 green; 13 blue, 11 green, 5 red; 16 blue, 2 green, 16 red; 11 green, 1 blue, 14 red +Game 80: 7 red, 10 blue, 5 green; 6 blue, 6 green, 8 red; 6 blue, 3 green, 5 red +Game 81: 1 blue, 14 red, 6 green; 1 red, 13 blue, 12 green; 2 green, 15 red, 15 blue +Game 82: 5 blue, 8 red, 6 green; 19 blue, 4 green; 9 green, 15 blue, 3 red +Game 83: 19 red, 15 green, 2 blue; 17 red, 4 green, 1 blue; 13 green, 18 red +Game 84: 9 green, 14 red; 11 green, 14 red, 1 blue; 1 blue, 2 red, 3 green; 13 green, 10 red; 1 green, 5 red +Game 85: 4 red, 2 green, 11 blue; 8 blue, 3 red; 4 red, 1 blue, 5 green; 2 red, 3 green; 1 green, 8 red, 12 blue +Game 86: 5 blue, 1 red; 8 blue; 2 red, 1 green, 12 blue; 12 blue, 2 red +Game 87: 3 red, 10 green, 3 blue; 13 blue, 6 red, 2 green; 1 green, 2 red, 10 blue +Game 88: 10 red, 3 green, 8 blue; 3 red, 18 blue, 2 green; 3 green, 15 blue; 15 green, 16 blue, 8 red +Game 89: 10 blue, 1 red; 4 green, 9 red, 13 blue; 10 red, 3 green, 12 blue; 2 green, 1 red, 16 blue; 10 blue, 1 red, 6 green +Game 90: 4 red, 2 blue, 15 green; 5 red, 1 blue, 12 green; 3 blue, 3 red, 7 green; 4 blue, 3 red, 7 green; 1 red, 2 green, 1 blue; 1 blue, 4 green, 3 red +Game 91: 16 red, 10 blue, 1 green; 13 green, 13 red, 19 blue; 11 blue, 12 green, 2 red +Game 92: 8 blue, 4 green, 5 red; 7 blue, 4 red; 2 green, 15 blue; 16 blue, 4 red; 1 red, 7 green, 16 blue; 11 blue, 1 red, 3 green +Game 93: 12 green, 2 blue, 2 red; 8 red, 16 green, 8 blue; 15 red, 4 blue, 7 green; 1 red, 4 blue, 15 green; 13 green, 5 red, 4 blue; 5 green, 8 blue, 12 red +Game 94: 13 green, 10 red; 11 red, 19 green, 1 blue; 1 blue, 10 red, 12 green; 18 green, 9 red, 1 blue; 8 green, 1 red +Game 95: 3 green, 4 blue; 2 red, 2 green, 2 blue; 7 red, 3 green +Game 96: 5 red, 7 green; 4 blue, 14 green, 10 red; 13 green; 13 green, 3 blue; 13 green, 1 red, 3 blue; 12 red, 1 green +Game 97: 2 green, 1 blue; 9 red; 4 blue, 8 red; 4 green, 1 red, 14 blue; 2 green, 9 blue; 1 red, 6 blue, 2 green +Game 98: 12 green, 9 blue, 13 red; 6 red, 7 blue; 2 blue, 2 green +Game 99: 9 red, 3 green, 10 blue; 10 red, 10 blue, 4 green; 2 green, 15 blue, 3 red; 12 blue, 4 red +Game 100: 15 blue, 6 red; 1 green, 2 red; 12 blue, 8 green, 1 red; 1 red, 7 blue diff --git a/2023/02/solution.txt b/2023/02/solution.txt new file mode 100644 index 0000000..c741ddb --- /dev/null +++ b/2023/02/solution.txt @@ -0,0 +1,2 @@ +Part 1: 2006 +Part 2: 84911 diff --git a/2023/02/test_code.py b/2023/02/test_code.py new file mode 100644 index 0000000..381c2cf --- /dev/null +++ b/2023/02/test_code.py @@ -0,0 +1,14 @@ +# SPDX-License-Identifier: MIT +# Copyright (c) 2023 Akumatic + +from code import read_file, part1, part2 + +def test(): + vals = read_file("test_input.txt") + assert part1(vals) == 8 + print("Passed Part 1") + assert part2(vals) == 2286 + print("Passed Part 2") + +if __name__ == "__main__": + test() diff --git a/2023/02/test_input.txt b/2023/02/test_input.txt new file mode 100644 index 0000000..295c36d --- /dev/null +++ b/2023/02/test_input.txt @@ -0,0 +1,5 @@ +Game 1: 3 blue, 4 red; 1 red, 2 green, 6 blue; 2 green +Game 2: 1 blue, 2 green; 3 green, 4 blue, 1 red; 1 green, 1 blue +Game 3: 8 green, 6 blue, 20 red; 5 blue, 4 red, 13 green; 5 green, 1 red +Game 4: 1 green, 3 red, 6 blue; 3 green, 6 red; 3 green, 15 blue, 14 red +Game 5: 6 red, 1 blue, 3 green; 2 blue, 1 red, 2 green diff --git a/2023/README.md b/2023/README.md index 52471fc..300f538 100644 --- a/2023/README.md +++ b/2023/README.md @@ -15,7 +15,7 @@ Collect stars by solving puzzles. Two puzzles will be made available on each day | Day | Part 1 | Part 2 | My Solution | Official Website | | --- | --- | --- |---| --- | | 01 | :white_check_mark: | :white_check_mark: | [Solution](01/code.py) | [Day 01](https://adventofcode.com/2023/day/1) | -| 02 | | | | [Day 02](https://adventofcode.com/2023/day/2) | +| 02 | :white_check_mark: | :white_check_mark: | [Solution](02/code.py) | [Day 02](https://adventofcode.com/2023/day/2) | | 03 | | | | [Day 03](https://adventofcode.com/2023/day/3) | | 04 | | | | [Day 04](https://adventofcode.com/2023/day/4) | | 05 | | | | [Day 05](https://adventofcode.com/2023/day/5) |