結果

問題 No.3198 Monotonic Query
コンテスト
ユーザー 学ぶマン
提出日時 2025-07-11 21:35:51
言語 PyPy3
(7.3.15)
結果
AC  
実行時間 352 ms / 3,000 ms
コード長 4,983 bytes
コンパイル時間 340 ms
コンパイル使用メモリ 82,108 KB
実行使用メモリ 92,760 KB
最終ジャッジ日時 2025-07-12 10:52:11
合計ジャッジ時間 8,021 ms
ジャッジサーバーID
（参考情報） 		judge1 / judge4
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ファイルパターン 結果
other AC * 22
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 # 

import sys, math
sys.setrecursionlimit(10**8)
sys.set_int_max_str_digits(0)
INF = 10**18
MOD = 998244353
from bisect import bisect_left, bisect_right
from collections import deque, defaultdict, Counter
from itertools import product, combinations, permutations, groupby, accumulate
from heapq import heapify, heappop, heappush
def I():   return sys.stdin.readline().rstrip()
def II():  return int(sys.stdin.readline().rstrip())
def IS():  return sys.stdin.readline().rstrip().split()
def MII(): return map(int, sys.stdin.readline().rstrip().split())
def LI():  return list(sys.stdin.readline().rstrip())
def TII(): return tuple(map(int, sys.stdin.readline().rstrip().split()))
def LII(): return list(map(int, sys.stdin.readline().rstrip().split()))
def LSI(): return list(map(str, sys.stdin.readline().rstrip().split()))
def GMI(): return list(map(lambda x: int(x) - 1, sys.stdin.readline().rstrip().split()))
def kiriage(a, b): return (a+b-1)//b
def chmax(DP,i,v):
    if DP[i] < v: DP[i] = v
def chmin(DP,i,v):
    if DP[i] > v: DP[i] = v
#def check(i:int, j:int): return 0 <= i < H and 0 <= j < W

INF = 10**18
import typing

def _ceil_pow2(n: int) -> int:
    x = 0
    while (1 << x) < n:
        x += 1
    return x

class SegTree:
    def __init__(self,
                op: typing.Callable[[typing.Any, typing.Any], typing.Any],
                e: typing.Any,
                v: typing.Union[int, typing.List[typing.Any]]) -> None:
        self._op = op
        self._e = e

        if isinstance(v, int):
            v = [e] * v

        self._n = len(v)
        self._log = _ceil_pow2(self._n)
        self._size = 1 << self._log
        self._d = [e] * (2 * self._size)

        for i in range(self._n):
            self._d[self._size + i] = v[i]
        for i in range(self._size - 1, 0, -1):
            self._update(i)

    def set(self, p: int, x: typing.Any) -> None:
        assert 0 <= p < self._n

        p += self._size
        self._d[p] = x
        for i in range(1, self._log + 1):
            self._update(p >> i)

    def get(self, p: int) -> typing.Any:
        assert 0 <= p < self._n

        return self._d[p + self._size]

    def prod(self, left: int, right: int) -> typing.Any:
        assert 0 <= left <= right <= self._n
        sml = self._e
        smr = self._e
        left += self._size
        right += self._size

        while left < right:
            if left & 1:
                sml = self._op(sml, self._d[left])
                left += 1
            if right & 1:
                right -= 1
                smr = self._op(self._d[right], smr)
            left >>= 1
            right >>= 1

        return self._op(sml, smr)

    def all_prod(self) -> typing.Any:
        return self._d[1]

    def max_right(self, left: int, f: typing.Callable[[typing.Any], bool]) -> int:
        assert 0 <= left <= self._n
        assert f(self._e)

        if left == self._n:
            return self._n

        left += self._size
        sm = self._e

        first = True
        while first or (left & -left) != left:
            first = False
            while left % 2 == 0:
                left >>= 1
            if not f(self._op(sm, self._d[left])):
                while left < self._size:
                    left *= 2
                    if f(self._op(sm, self._d[left])):
                        sm = self._op(sm, self._d[left])
                        left += 1
                return left - self._size
            sm = self._op(sm, self._d[left])
            left += 1

        return self._n

    def min_left(self, right: int, f: typing.Callable[[typing.Any], bool]) -> int:
        assert 0 <= right <= self._n
        assert f(self._e)

        if right == 0:
            return 0

        right += self._size
        sm = self._e

        first = True
        while first or (right & -right) != right:
            first = False
            right -= 1
            while right > 1 and right % 2:
                right >>= 1
            if not f(self._op(self._d[right], sm)):
                while right < self._size:
                    right = 2 * right + 1
                    if f(self._op(self._d[right], sm)):
                        sm = self._op(self._d[right], sm)
                        right -= 1
                return right + 1 - self._size
            sm = self._op(self._d[right], sm)

        return 0

    def _update(self, k: int) -> None:
        self._d[k] = self._op(self._d[2 * k], self._d[2 * k + 1])

    def __str__(self): # for debug
        arr = [self.prod(i,i+1) for i in range(self._n)]
        print(str(arr))

Q = II()

def op(x, y):
    return max(x, y)
E = 0
arr = [0]*(Q + 1)
st = SegTree(op, E, arr)
pos = 0
ansl = []
for i in range(Q):
    a, b = MII()

    if a == 1:
        x = b
        st.set(pos, x)
        pos += 1
    
    else:
        k = b
        # [pos - k, pos] の区間の最大値は？
        ans = st.prod(pos - k, pos)
        ansl.append(ans)

print(*ansl, sep='\n')
0