結果

問題 No.674 n連勤
ユーザー strangerxxxstrangerxxx
提出日時 2023-12-01 17:46:07
言語 PyPy3
(7.3.15)
結果
AC  
実行時間 472 ms / 2,000 ms
コード長 8,255 bytes
コンパイル時間 405 ms
コンパイル使用メモリ 82,304 KB
実行使用メモリ 87,328 KB
最終ジャッジ日時 2024-09-26 15:46:06
合計ジャッジ時間 5,307 ms
ジャッジサーバーID
（参考情報） 		judge4 / judge3
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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 60 ms
68,352 KB
testcase_01 AC 68 ms
68,096 KB
testcase_02 AC 63 ms
68,096 KB
testcase_03 AC 62 ms
68,608 KB
testcase_04 AC 61 ms
68,608 KB
testcase_05 AC 60 ms
68,864 KB
testcase_06 AC 59 ms
68,748 KB
testcase_07 AC 59 ms
68,480 KB
testcase_08 AC 60 ms
68,480 KB
testcase_09 AC 62 ms
68,288 KB
testcase_10 AC 60 ms
68,480 KB
testcase_11 AC 100 ms
78,720 KB
testcase_12 AC 167 ms
79,568 KB
testcase_13 AC 116 ms
78,720 KB
testcase_14 AC 169 ms
78,848 KB
testcase_15 AC 166 ms
79,048 KB
testcase_16 AC 382 ms
84,892 KB
testcase_17 AC 393 ms
85,756 KB
testcase_18 AC 472 ms
87,328 KB
testcase_19 AC 106 ms
79,104 KB
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ソースコード

diff # 

def main():
    import sys

    input = sys.stdin.readline
    d, q = map(int, input().split())
    rs = RangeSet()
    ans = 0
    for _ in range(q):
        a, b = map(int, input().split())
        rs.add(a, b + 1)
        l, r = rs.covered_by(a, a + 1)
        ans = max(ans, r - l)
        print(ans)


# https://github.com/tatyam-prime/SortedSet/blob/main/SortedSet.py
import math
from bisect import bisect_left, bisect_right
from typing import Generic, Iterable, Iterator, List, Tuple, TypeVar, Optional

T = TypeVar("T")


class SortedSet(Generic[T]):
    BUCKET_RATIO = 50
    REBUILD_RATIO = 170

    def _build(self, a: Optional[List[T]] = None) -> None:
        "Evenly divide `a` into buckets."
        if a is None:
            a = list(self)
        size = len(a)
        bucket_size = int(math.ceil(math.sqrt(size / self.BUCKET_RATIO)))
        self.a = [
            a[size * i // bucket_size : size * (i + 1) // bucket_size]
            for i in range(bucket_size)
        ]

    def __init__(self, a: Iterable[T] = []) -> None:
        "Make a new SortedSet from iterable. / O(N) if sorted and unique / O(N log N)"
        a = list(a)
        self.size = len(a)
        if not all(a[i] < a[i + 1] for i in range(len(a) - 1)):
            a = sorted(set(a))
        self._build(a)

    def __iter__(self) -> Iterator[T]:
        for i in self.a:
            for j in i:
                yield j

    def __reversed__(self) -> Iterator[T]:
        for i in reversed(self.a):
            for j in reversed(i):
                yield j

    def __eq__(self, other) -> bool:
        return list(self) == list(other)

    def __len__(self) -> int:
        return self.size

    def __repr__(self) -> str:
        return "SortedSet" + str(self.a)

    def __str__(self) -> str:
        s = str(list(self))
        return "{" + s[1 : len(s) - 1] + "}"

    def _position(self, x: T) -> Tuple[List[T], int]:
        "Find the bucket and position which x should be inserted. self must not be empty."
        for a in self.a:
            if x <= a[-1]:
                break
        return (a, bisect_left(a, x))

    def __contains__(self, x: T) -> bool:
        if self.size == 0:
            return False
        a, i = self._position(x)
        return i != len(a) and a[i] == x

    def add(self, x: T) -> bool:
        "Add an element and return True if added. / O(√N)"
        if self.size == 0:
            self.a = [[x]]
            self.size = 1
            return True
        a, i = self._position(x)
        if i != len(a) and a[i] == x:
            return False
        a.insert(i, x)
        self.size += 1
        if len(a) > len(self.a) * self.REBUILD_RATIO:
            self._build()
        return True

    def _pop(self, a: List[T], i: int) -> T:
        ans = a.pop(i)
        self.size -= 1
        if not a:
            self._build()
        return ans

    def discard(self, x: T) -> bool:
        "Remove an element and return True if removed. / O(√N)"
        if self.size == 0:
            return False
        a, i = self._position(x)
        if i == len(a) or a[i] != x:
            return False
        self._pop(a, i)
        return True

    def lt(self, x: T) -> Optional[T]:
        "Find the largest element < x, or None if it doesn't exist."
        for a in reversed(self.a):
            if a[0] < x:
                return a[bisect_left(a, x) - 1]

    def le(self, x: T) -> Optional[T]:
        "Find the largest element <= x, or None if it doesn't exist."
        for a in reversed(self.a):
            if a[0] <= x:
                return a[bisect_right(a, x) - 1]

    def gt(self, x: T) -> Optional[T]:
        "Find the smallest element > x, or None if it doesn't exist."
        for a in self.a:
            if a[-1] > x:
                return a[bisect_right(a, x)]

    def ge(self, x: T) -> Optional[T]:
        "Find the smallest element >= x, or None if it doesn't exist."
        for a in self.a:
            if a[-1] >= x:
                return a[bisect_left(a, x)]

    def __getitem__(self, i: int) -> T:
        "Return the i-th element."
        if i < 0:
            for a in reversed(self.a):
                i += len(a)
                if i >= 0:
                    return a[i]
        else:
            for a in self.a:
                if i < len(a):
                    return a[i]
                i -= len(a)
        raise IndexError

    def pop(self, i: int = -1) -> T:
        "Pop and return the i-th element."
        if i < 0:
            for a in reversed(self.a):
                i += len(a)
                if i >= 0:
                    return self._pop(a, i)
        else:
            for a in self.a:
                if i < len(a):
                    return self._pop(a, i)
                i -= len(a)
        raise IndexError

    def index(self, x: T) -> int:
        "Count the number of elements < x."
        ans = 0
        for a in self.a:
            if a[-1] >= x:
                return ans + bisect_left(a, x)
            ans += len(a)
        return ans

    def index_right(self, x: T) -> int:
        "Count the number of elements <= x."
        ans = 0
        for a in self.a:
            if a[-1] > x:
                return ans + bisect_right(a, x)
            ans += len(a)
        return ans


class RangeSet:
    def __init__(self, inf=float("inf")) -> None:
        self.inf = inf
        self.st = SortedSet([(-inf, -inf), (inf, inf)])
        self.sum = 0

    def getindex(self, i) -> int:
        return self.st.index((i, self.inf)) - 1

    def getitem(self, i) -> int:
        return self.st.le((i, self.inf))

    def add(self, l: int, r: int) -> int:
        # 半開区間[l, r)を追加する
        # 追加した区間数を返す
        assert l <= r
        i, j = self.getitem(l)
        if i <= l and r <= j:
            return 0
        res = 0
        idx = self.getindex(l)
        if i <= l and l <= j:
            res -= j - i
            l = i
            self.st.pop(idx)
        else:
            idx += 1
        while r > self.st[idx][1]:
            i, j = self.st[idx]
            res -= j - i
            self.st.pop(idx)
        if self.st[idx][0] <= r:
            i, j = self.st[idx]
            res -= j - i
            self.st.pop(idx)
            r = j
        self.st.add((l, r))
        res += r - l
        self.sum += res
        return res

    def remove(self, l: int, r: int) -> int:
        # 半開区間[l, r)を削除する
        # 削除した区間数を返す
        assert l <= r
        i, j = self.getitem(l)
        idx = self.getindex(l)
        if i <= l and r <= j:
            self.st.pop(idx)
            if i < l:
                self.st.add((i, l))
            if r < j:
                self.st.add((r, j))
            res = r - l
            self.sum -= res
            return res
        res = 0
        if i <= l and l < j:
            res += j - l
            self.st.pop(idx)
            if i < l:
                self.st.add((i, l))
                idx += 1
        else:
            idx += 1
        while self.st[idx][1] <= r:
            i, j = self.st[idx]
            res += j - i
            self.st.pop(idx)
        if self.st[idx][0] < r:
            i, j = self.st[idx]
            res += r - i
            self.st.pop(idx)
            self.st.add((r, j))
        self.sum -= res
        return res

    def covered(self, l: int, r: int) -> bool:
        assert l <= r
        i, j = self.getitem(l)
        return i <= l and r < j

    def covered_by(self, l: int, r: int) -> bool:
        assert l <= r
        i, j = self.getitem(l)
        if i <= l and r <= j:
            return i, j
        return None, None

    def size(self) -> int:
        return self.sum

    def mex(self, m: int = 0) -> int:
        # m以上で範囲外の最小の整数を返す
        i, j = self.getitem(m)
        if i <= m and m < j:
            return j
        return m

    def get_all(self):
        return tuple(self.st)[1:-1]

    def __repr__(self) -> str:
        s = str(self.get_all())
        return "RangeSet{" + s[1:-1] + "}"

    def __str__(self) -> str:
        s = str(self.get_all())
        return "{" + s[1:-1] + "}"


if __name__ == "__main__":
    main()
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