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from utils import open_day
from dataclasses import dataclass
@dataclass
class Cell:
num: int
marked: bool = False
Board = list[list[Cell]]
def bingo(board: Board) -> bool:
for row in board:
if all(cell.marked for cell in row):
return True
for x in range(len(board[0])):
if all(board[y][x].marked for y in range(len(board))):
return True
return False
def solve(nums: list[int], boards: list[Board]) -> tuple[int, int]:
won: set[int] = set()
wins: list[int] = []
num: int
for num in nums:
i: int
board: Board
for i, board in enumerate(boards):
total = 0
for row in board:
for cell in row:
if cell.num == num:
cell.marked = True
if not cell.marked:
total += cell.num
if i not in won and bingo(board):
won.add(i)
wins.append(num * total)
return wins[0], wins[-1]
nums: str | list[int]
boards: list[str] | list[Board]
nums, *boards = open_day(4).read().rstrip().split('\n\n')
nums = list(map(int, nums.split(',')))
boards = [[[Cell(int(n)) for n in l.split()] for l in b.split('\n')] for b in boards]
part1, part2 = solve(nums, boards)
print(part1)
print(part2)
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