from itertools import product, chain
from utils import open_day

class Board:
    cells: list[int | None]
    width: int
    height: int
    col_hits: list[int]
    row_hits: list[int]
    has_bingo: bool
    unmarked_sum: int
    def __init__(self, cells: list[list[int]]):
        self.width = len(cells[0])
        self.height = len(cells)
        self.col_hits = [0] * self.width
        self.row_hits = [0] * self.height
        self.unmarked_sum = 0
        self.cells = []
        for cell in chain.from_iterable(cells):
            self.unmarked_sum += cell
            self.cells.append(cell)
        self.has_bingo = False
    def call(self, num: int):
        for y, x in product(range(self.height), range(self.width)):
            cell = self.cells[x + self.width * y]
            if cell == num:
                self.col_hits[x] += 1
                self.row_hits[y] += 1
                self.unmarked_sum -= cell
                self.has_bingo = (
                    any(hits == self.height for hits in self.col_hits) or
                    any(hits == self.width for hits in self.row_hits)
                )
                return
    @staticmethod
    def from_string(s: str) -> 'Board':
        return Board([[int(n) for n in l.split()] for l in s.split('\n')])

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):
            if i in won: continue
            board.call(num)
            if board.has_bingo:
                won.add(i)
                wins.append(num * board.unmarked_sum)
    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 = [Board.from_string(b) for b in boards]

part1, part2 = solve(nums, boards)
print(part1)
print(part2)