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| author | 2021-12-02 17:49:29 +0100 | |
|---|---|---|
| committer | 2021-12-02 17:49:29 +0100 | |
| commit | 824eaed0232ca337ff67f0cf0269f474e0471e2f (patch) | |
| tree | ec8b04f8716b80d15353bfc9c9408a5f98affa85 /day2/__init__.py | |
| parent | 4dec21f362c03136e9811a4f4c162fcd8c50544e (diff) | |
| download | 2021-824eaed0232ca337ff67f0cf0269f474e0471e2f.tar.gz 2021-824eaed0232ca337ff67f0cf0269f474e0471e2f.tar.bz2 2021-824eaed0232ca337ff67f0cf0269f474e0471e2f.zip | |
Day2 part1
Diffstat (limited to 'day2/__init__.py')
| -rw-r--r-- | day2/__init__.py | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/day2/__init__.py b/day2/__init__.py new file mode 100644 index 0000000..e16787f --- /dev/null +++ b/day2/__init__.py | |||
| @@ -0,0 +1,44 @@ | |||
| 1 | from dataclasses import dataclass | ||
| 2 | from typing import Iterator, List | ||
| 3 | |||
| 4 | from aoc import BaseAssignment | ||
| 5 | |||
| 6 | @dataclass | ||
| 7 | class Instruction: | ||
| 8 | direction: str | ||
| 9 | steps: int | ||
| 10 | |||
| 11 | class Assignment(BaseAssignment): | ||
| 12 | def parse_item(self, item: str) -> Instruction: | ||
| 13 | direction, steps = item.split(' ') | ||
| 14 | return Instruction(direction=direction, steps=int(steps)) | ||
| 15 | |||
| 16 | def read_input(self, example = False) -> List[Instruction]: | ||
| 17 | return list(super().read_input(example)) | ||
| 18 | |||
| 19 | class AssignmentOne(Assignment): | ||
| 20 | depth = 0 | ||
| 21 | horizontal = 0 | ||
| 22 | |||
| 23 | def run(self, input: List[Instruction]) -> int: | ||
| 24 | for instruction in input: | ||
| 25 | match instruction.direction: | ||
| 26 | case 'forward': | ||
| 27 | self.horizontal += instruction.steps | ||
| 28 | case 'up': | ||
| 29 | self.depth -= instruction.steps | ||
| 30 | case 'down': | ||
| 31 | self.depth += instruction.steps | ||
| 32 | |||
| 33 | return self.depth * self.horizontal | ||
| 34 | |||
| 35 | |||
| 36 | |||
| 37 | class AssignmentTwo(Assignment): | ||
| 38 | def run(self, input: List) -> int: | ||
| 39 | new_input = [ | ||
| 40 | input[i - 2] + input[i - 1] + input[i] | ||
| 41 | for i in range(2, len(input)) | ||
| 42 | ] | ||
| 43 | |||
| 44 | return AssignmentOne(path='').run(new_input) | ||
