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Solve day 2 part 2

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Gabriel Augendre 2022-12-02 14:18:43 +01:00
parent ec3209ef08
commit defec8c7da
2 changed files with 42 additions and 9 deletions
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2
2022/day01_calories.py
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@ -34,4 +34,4 @@ def solve_part_2(data: list[int]) -> int:
if __name__ == "__main__": if __name__ == "__main__":
main("inputs/day01-test1", expected_part_1=24000, expected_part_2=45000) main("inputs/day01-test1", expected_part_1=24000, expected_part_2=45000)
main("inputs/day01", expected_part_1=70296) main("inputs/day01", expected_part_1=70296, expected_part_2=205381)

49
2022/day02_rock_paper_scissors.py
View file

@ -11,14 +11,15 @@ def main(filename: str, expected_part_1: int = None, expected_part_2: int = None
with open(filename) as f: with open(filename) as f:
data = f.read().strip().split("\n") data = f.read().strip().split("\n")
data = parse_data(data) parsed_data = parse_data_part_1(data)
solution_part_1 = solve_part_1(data) solution_part_1 = solve_part_1(parsed_data)
print(f"1. Found {solution_part_1}") print(f"1. Found {solution_part_1}")
if expected_part_1: if expected_part_1:
assert expected_part_1 == solution_part_1 assert expected_part_1 == solution_part_1
solution_part_2 = solve_part_2(data) parsed_data = parse_data_part_2(data)
solution_part_2 = solve_part_2(parsed_data)
print(f"2. Found {solution_part_2}") print(f"2. Found {solution_part_2}")
if expected_part_2: if expected_part_2:
assert expected_part_2 == solution_part_2 assert expected_part_2 == solution_part_2
@ -40,11 +41,25 @@ class Shape(enum.IntEnum):
"Z": cls.SCISSORS, "Z": cls.SCISSORS,
}[letter] }[letter]
def winner_for_opponent(self) -> Shape:
return {
self.SCISSORS: self.ROCK,
self.ROCK: self.PAPER,
self.PAPER: self.SCISSORS,
}[self]
def loser_for_opponent(self) -> Shape:
return {
self.ROCK: self.SCISSORS,
self.PAPER: self.ROCK,
self.SCISSORS: self.PAPER,
}[self]
@dataclasses.dataclass @dataclasses.dataclass
class Round: class Round:
opponent: Shape opponent: Shape
me: Shape me: Shape | None = None
@property @property
def value(self) -> int: def value(self) -> int:
@ -67,11 +82,19 @@ class Round:
def draw(self) -> bool: def draw(self) -> bool:
return self.opponent == self.me return self.opponent == self.me
def complete(self, instruction: str):
if instruction == "X":
self.me = self.opponent.loser_for_opponent()
elif instruction == "Y":
self.me = self.opponent
else:
self.me = self.opponent.winner_for_opponent()
DataType = list[Round] DataType = list[Round]
def parse_data(data: list[str]) -> DataType: def parse_data_part_1(data: list[str]) -> DataType:
rounds = [] rounds = []
for round in data: # noqa: A001 for round in data: # noqa: A001
opponent, me = round.split(" ") opponent, me = round.split(" ")
@ -79,12 +102,22 @@ def parse_data(data: list[str]) -> DataType:
return rounds return rounds
def parse_data_part_2(data: list[str]) -> DataType:
rounds = []
for round in data: # noqa: A001
opponent, instruction = round.split(" ")
r = Round(Shape.from_input(opponent))
r.complete(instruction)
rounds.append(r)
return rounds
def solve_part_1(data: DataType) -> int: def solve_part_1(data: DataType) -> int:
return sum([round.value for round in data]) # noqa: A001 return sum([round.value for round in data]) # noqa: A001
def solve_part_2(data: DataType) -> int: def solve_part_2(data: DataType) -> int:
return 0 return sum([round.value for round in data]) # noqa: A001
@pytest.mark.parametrize( @pytest.mark.parametrize(
@ -130,5 +163,5 @@ def test_round_defeat(opponent, me):
if __name__ == "__main__": if __name__ == "__main__":
main("inputs/day02-test1", expected_part_1=15) main("inputs/day02-test1", expected_part_1=15, expected_part_2=12)
main("inputs/day02") main("inputs/day02", expected_part_1=12156, expected_part_2=10835)