mirror of
https://github.com/Crocmagnon/advent-of-code.git
synced 2024-11-16 03:34:00 +01:00
54 lines
1.4 KiB
Python
54 lines
1.4 KiB
Python
from collections import defaultdict
|
|
|
|
|
|
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
|
|
|
|
|
|
def parse_data(data: list[str]) -> dict[int, int]:
|
|
dct = defaultdict(int)
|
|
for x in map(int, data[0].split(",")):
|
|
dct[x] += 1
|
|
return dct
|
|
|
|
|
|
def solve_part_1(data) -> int:
|
|
for _ in range(80):
|
|
data = _run_day(data)
|
|
return sum(data.values())
|
|
|
|
|
|
def _run_day(data: dict[int, int]) -> dict[int, int]:
|
|
new_data = defaultdict(int)
|
|
for k, v in data.items():
|
|
if k == 0:
|
|
new_data[6] += v
|
|
new_data[8] += v
|
|
else:
|
|
new_data[k - 1] += v
|
|
return new_data
|
|
|
|
|
|
def solve_part_2(data) -> int:
|
|
for _ in range(256):
|
|
data = _run_day(data)
|
|
return sum(data.values())
|
|
|
|
|
|
if __name__ == "__main__":
|
|
main("inputs/day06-test1", expected_part_1=5934, expected_part_2=26984457539)
|
|
main("inputs/day06", expected_part_1=345793)
|