結果

問題 No.580 旅館の予約計画
ユーザー ThetaTheta
提出日時 2022-12-16 13:15:40
言語 Python3
(3.11.6 + numpy 1.26.0 + scipy 1.11.3)
結果
AC  
実行時間 83 ms / 2,000 ms
コード長 2,191 bytes
コンパイル時間 336 ms
コンパイル使用メモリ 11,036 KB
実行使用メモリ 9,252 KB
最終ジャッジ日時 2023-08-09 20:55:16
合計ジャッジ時間 3,685 ms
ジャッジサーバーID
(参考情報)
judge12 / judge13
このコードへのチャレンジ(β)

テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 20 ms
8,888 KB
testcase_01 AC 20 ms
8,792 KB
testcase_02 AC 20 ms
8,672 KB
testcase_03 AC 20 ms
8,828 KB
testcase_04 AC 20 ms
8,740 KB
testcase_05 AC 20 ms
8,900 KB
testcase_06 AC 20 ms
8,760 KB
testcase_07 AC 27 ms
8,848 KB
testcase_08 AC 21 ms
8,820 KB
testcase_09 AC 22 ms
8,828 KB
testcase_10 AC 24 ms
8,776 KB
testcase_11 AC 27 ms
8,716 KB
testcase_12 AC 31 ms
8,812 KB
testcase_13 AC 24 ms
8,880 KB
testcase_14 AC 27 ms
8,876 KB
testcase_15 AC 83 ms
9,076 KB
testcase_16 AC 57 ms
9,252 KB
testcase_17 AC 58 ms
9,032 KB
testcase_18 AC 57 ms
9,168 KB
testcase_19 AC 81 ms
9,112 KB
testcase_20 AC 44 ms
9,168 KB
testcase_21 AC 46 ms
9,144 KB
testcase_22 AC 28 ms
9,076 KB
testcase_23 AC 34 ms
9,084 KB
testcase_24 AC 41 ms
9,168 KB
testcase_25 AC 37 ms
9,072 KB
testcase_26 AC 23 ms
8,856 KB
testcase_27 AC 21 ms
8,840 KB
testcase_28 AC 21 ms
8,808 KB
testcase_29 AC 21 ms
8,724 KB
testcase_30 AC 37 ms
9,068 KB
testcase_31 AC 50 ms
9,100 KB
testcase_32 AC 34 ms
9,084 KB
testcase_33 AC 69 ms
9,192 KB
testcase_34 AC 34 ms
9,224 KB
testcase_35 AC 20 ms
8,892 KB
権限があれば一括ダウンロードができます

ソースコード

diff #

from functools import total_ordering


@total_ordering
class OrderTime:
    def __init__(self, day: int, hour: int, minute: int) -> None:
        self.hour = hour
        self.minute = minute
        self.day = day

    @property
    def time_tuple(self) -> tuple[int, int, int]:
        return self.day, self.hour, self.minute

    def __eq__(self, __o: object) -> bool:
        if not isinstance(__o, OrderTime):
            raise ValueError
        return self.time_tuple == __o.time_tuple

    def __lt__(self, __o: object) -> bool:
        if not isinstance(__o, OrderTime):
            raise ValueError
        return self.time_tuple < __o.time_tuple

    def __str__(self) -> str:
        return f"{self.day} {self.hour}:{self.minute}"


class Order:
    def __init__(self, enter_day, enter_hour, enter_minute, out_day, out_hour, out_minute) -> None:
        self.enter_time = OrderTime(enter_day, enter_hour, enter_minute)
        self.out_time = OrderTime(out_day, out_hour, out_minute)

    def can_stay(self, _o: object) -> bool:
        if not isinstance(_o, Order):
            raise ValueError
        return self.out_time < _o.enter_time


def main():
    n, m = map(int, input().split())
    orders: list[Order] = []
    for _ in range(m):
        enter_day, enter_time, out_day, out_time = input().split()
        enter_day = int(enter_day)
        out_day = int(out_day)
        enter_hour, enter_minute = map(int, enter_time.split(":"))
        out_hour, out_minute = map(int, out_time.split(":"))
        orders.append(Order(enter_day, enter_hour, enter_minute,
                            out_day, out_hour, out_minute))

    orders.sort(key=lambda order: order.out_time)

    ctr = 0
    rooms = [Order(1, 23, 50, 1, 23, 59) for _ in range(n)]

    for order in orders:
        next_order = [-1, (-1, -1, -1)]
        for room_idx, room in enumerate(rooms):
            if room.can_stay(order) and next_order[1] < room.out_time.time_tuple:
                next_order = [room_idx, room.out_time.time_tuple]
        if next_order[0] == -1:
            continue
        rooms[next_order[0]] = order
        ctr += 1

    print(ctr)


if __name__ == "__main__":
    main()
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