advent-of-code/2022/day10_cathode.py

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2022-12-10 19:24:03 +01:00
def main(filename: str, expected_part_1: int = None, expected_part_2: int = None):
print(f"\n+ Running on {filename}")
with open(filename) as f:
data = f.read().strip().split("\n")
data = parse_data(data)
solution_part_1 = solve_part_1(data)
print(f"1. Found {solution_part_1}")
if expected_part_1:
assert expected_part_1 == solution_part_1
solution_part_2 = solve_part_2(data)
print(f"2. Found {solution_part_2}")
if expected_part_2:
assert expected_part_2 == solution_part_2
DataType = list[str]
def parse_data(data: list[str]) -> DataType:
return data
def solve_part_1(data: DataType) -> int:
total = 0
register = 1
clock = 0
expected_cycles = [20, 60, 100, 140, 180, 220]
for instruction in data:
match instruction.split():
case ["noop"]:
clock += 1
if clock in expected_cycles:
print(f"{clock=}, {register=}")
total += register * clock
case ["addx", value]:
clock += 1
if clock in expected_cycles:
print(f"{clock=}, {register=}")
total += register * clock
clock += 1
if clock in expected_cycles:
print(f"{clock=}, {register=}")
total += register * clock
register += int(value)
return total
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def solve_part_2(data: DataType) -> None:
register = 1
clock = 0
for instruction in data:
match instruction.split():
case ["noop"]:
clock += 1
end_of_cycle(clock, register)
case ["addx", value]:
clock += 1
end_of_cycle(clock, register)
clock += 1
end_of_cycle(clock, register)
register += int(value)
def end_of_cycle(clock: int, register: int) -> None:
if (clock % 40 - 1) in sprite_indices(register):
char = "#"
else:
char = "."
if clock % 40 == 0:
end = "\n"
else:
end = ""
print(char, end=end)
def sprite_indices(register: int) -> tuple[int, int, int]:
return register - 1, register, register + 1
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if __name__ == "__main__":
main("inputs/day10-test1", expected_part_1=13140)
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main("inputs/day10", expected_part_1=12560)