104 lines
3.0 KiB
Python
104 lines
3.0 KiB
Python
def check_win(board):
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rows = [set(row) for row in board]
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cols = [set(col) for col in
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[[row[i] for row in board] for i in range(len(board[0]))]]
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for row in rows:
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if len(row) == 1 and row.issubset([1]):
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return True
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for col in cols:
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if len(col) == 1 and col.issubset([1]):
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return True
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return False
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def calc_score(board, checked, last_pick):
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sum = 0
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for i in range(len(board)):
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for j in range(len(board[i])):
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if checked[i][j] == 0:
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sum += board[i][j]
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return sum * last_pick
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def get_win_board(boards, checked):
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for board in range(len(boards)):
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if check_win(checked[board]):
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print("board", board, "won")
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return board
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return None
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def ingest(input):
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"""Ingest the input data"""
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input_seq = input[0]
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input.remove(input_seq)
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input_seq = [int(x) for x in input_seq.rstrip().split(",")]
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boards = []
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while input.count("\n") != 1:
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input.remove("\n")
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boards.append([[int(y) for y in x.rstrip().split()] for x in
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input[0:input.index("\n")]])
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input = input[input.index("\n"):len(input)]
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return (input_seq, boards)
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def check_spaces(boards, checked, num):
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for board in range(len(boards)):
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for row in range(len(boards[board])):
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for cell in range(len(boards[board][row])):
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if boards[board][row][cell] == num:
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checked[board][row][cell] = 1
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return checked
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def part1():
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input_seq = []
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boards = []
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with open("day04.in", "r") as f:
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input_seq, boards = ingest([line for line in f])
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checked = [[[0 for i in row] for row in board] for board in boards]
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score = 0
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for num in input_seq:
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checked = check_spaces(boards, checked, num)
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win_board = get_win_board(boards, checked)
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if win_board is not None:
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score = calc_score(boards[win_board], checked[win_board], num)
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break
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print("Winning score:", score)
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def part2():
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with open("day04.in2", "r") as f:
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input_seq, boards = ingest([line for line in f])
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checked = [[[0 for i in row] for row in board] for board in boards]
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win_boards = [0 for i in range(len(boards))]
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loosing_board = -1
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for num in input_seq:
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checked = check_spaces(boards, checked, num)
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if loosing_board != -1:
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score = calc_score(boards[loosing_board], checked[loosing_board],
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num)
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break
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for board in range(len(checked)):
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if check_win(checked[board]):
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win_boards[board] = 1
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if win_boards.count(0) == 1:
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loosing_board = win_boards.index(0)
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score = calc_score(boards[loosing_board], checked[loosing_board],
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num)
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print("board", loosing_board, "lost")
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print("Loosing score:", score)
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def main():
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print("=== PART 1 ===")
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part1()
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print("=== PART 2 ===")
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part2()
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if __name__ == "__main__":
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main()
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