#1169800 (PyPy3) No.2809 Sort Query

• 問題: No.2809 Sort Query
• ユーザー: detteiuu
• 提出日時: 2026-06-28 23:59:27
• 言語: PyPy3 (7.3.17)
• 結果: WA
• 実行時間: -
• コード長: 5,385 bytes
• コンパイル時間: 521 ms
• コンパイル使用メモリ: 85,248 KB
• 実行使用メモリ: 230,736 KB
• 最終ジャッジ日時: 2026-06-29 00:01:09
• 合計ジャッジ時間: 89,587 ms
• ジャッジサーバーID （参考情報）: judge2_0 / judge3_1

ファイルパターン	結果
other	AC * 68 WA * 3

ソースコード

from sys import stdin
input = stdin.readline
# https://github.com/tatyam-prime/SortedSet/blob/main/BucketList.py
import math
from typing import Generic, Iterable, Iterator, TypeVar
T = TypeVar('T')

class BucketList(Generic[T]):
    BUCKET_RATIO = 16
    SPLIT_RATIO = 24
    
    def __init__(self, a: Iterable[T] = []) -> None:
        a = list(a)
        n = self.size = len(a)
        num_bucket = int(math.ceil(math.sqrt(n / self.BUCKET_RATIO)))
        self.a = [a[n * i // num_bucket : n * (i + 1) // num_bucket] for i in range(num_bucket)]

    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:
        if len(self) != len(other): return False
        for x, y in zip(self, other):
            if x != y: return False
        return True
    
    def __len__(self) -> int:
        return self.size
    
    def __repr__(self) -> str:
        return "BucketList" + str(self.a)
    
    def __str__(self) -> str:
        return str(list(self))

    def __contains__(self, x: T) -> bool:
        "Return True if x is in the bucket list. / O(N)"
        for y in self:
            if x == y: return True
        return False
    
    def _insert(self, a: list[T], b: int, i: int, x: T) -> None:
        a.insert(i, x)
        self.size += 1
        if len(a) > len(self.a) * self.SPLIT_RATIO:
            mid = len(a) >> 1
            self.a[b:b+1] = [a[:mid], a[mid:]]

    def insert(self, i: int, x: T) -> None:
        "Insert x at the i-th position. / O(√N)"
        if self.size == 0:
            if i != 0 and i != -1: raise IndexError
            self.a = [[x]]
            self.size = 1
            return
        if i < 0:
            for b, a in enumerate(reversed(self.a)):
                i += len(a)
                if i >= 0: return self._insert(a, len(self.a) + ~b, i, x)
        else:
            for b, a in enumerate(self.a):
                if i <= len(a): return self._insert(a, b, i, x)
                i -= len(a)
        raise IndexError

    def append(self, x: T) -> None:
        "Append x to the end of the list. / amortized O(1)"
        if self.size == 0:
            self.a = [[x]]
            self.size = 1
            return
        a = self.a[-1]
        return self._insert(a, len(self.a) - 1, len(a), x)
    
    def extend(self, a: Iterable[T]) -> None:
        for x in a: self.append(x)
    
    def __getitem__(self, i: int) -> T:
        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, a: list[T], b: int, i: int) -> T:
        ans = a.pop(i)
        self.size -= 1
        if not a: del self.a[b]
        return ans
    
    def pop(self, i: int = -1) -> T:
        "Remove and return the i-th element. / O(√N) / O(-i) if i < 0"
        if i < 0:
            for b, a in enumerate(reversed(self.a)):
                i += len(a)
                if i >= 0: return self._pop(a, ~b, i)
        else:
            for b, a in enumerate(self.a):
                if i < len(a): return self._pop(a, b, i)
                i -= len(a)
        raise IndexError

    def count(self, x: T) -> int:
        "Return the number of occurrences of x. / O(N)"
        return sum(1 for y in self if x == y)

    def index(self, x: T) -> int:
        "Return the index of the first occurrence of x, raise ValueError if not found. / O(N)"
        for i, y in enumerate(self):
            if x == y: return i
        raise ValueError
    
    def remove(self, x: T) -> None:
        "Remove the first occurrence of x, raise ValueError if not found. / O(N)"
        self.pop(self.index(x))

    def clear(self) -> None:
        self.a = []
        self.size = 0

    def reverse(self) -> None:
        self.a.reverse()
        for a in self.a: a.reverse()

    def copy(self) -> 'BucketList[T]':
        return BucketList(self)
    
N, Q = map(int, input().split())
A = list(map(int, input().split()))
query = [list(map(int, input().split())) for _ in range(Q)]

B = BucketList(A)
flag = False
update = []
for q in query:
    if q[0] == 1:
        k, x = q[1:]
        k -= 1
        B.pop(k)
        B.insert(k, x)
        update.append((k, x))
    elif q[0] == 2:
        if not flag:
            C = sorted(B)
            B = BucketList(C)
            update = []
            flag = True
        else:
            S = set()
            que = []
            while update:
                idx, x = update.pop()
                if idx not in S:
                    que.append((idx, x))
                    S.add(idx)
            que.sort(key=lambda x:x[0])
            for idx, x in que[::-1]:
                B.pop(idx)
            for idx, x in que:
                left = 0
                right = len(B)
                while left+1 < right:
                    mid = (left+right)//2
                    if B[mid] < x:
                        left = mid
                    else:
                        right = mid
                B.insert(right, x)
            que = []
    else:
        k = q[1]-1
        print(B[k])