結果

問題 No.2718 Best Consonance
ユーザー titiatitia
提出日時 2024-04-10 01:17:27
言語 PyPy3
(7.3.15)
結果
TLE  
実行時間 -
コード長 6,288 bytes
コンパイル時間 376 ms
コンパイル使用メモリ 82,364 KB
実行使用メモリ 268,896 KB
最終ジャッジ日時 2024-10-02 02:33:30
合計ジャッジ時間 77,232 ms
ジャッジサーバーID
（参考情報） 		judge5 / judge2
このコードへのチャレンジ
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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 174 ms
106,752 KB
testcase_01 AC 175 ms
106,880 KB
testcase_02 AC 175 ms
106,572 KB
testcase_03 AC 179 ms
106,368 KB
testcase_04 AC 181 ms
106,848 KB
testcase_05 AC 180 ms
106,496 KB
testcase_06 AC 184 ms
106,576 KB
testcase_07 AC 179 ms
106,880 KB
testcase_08 AC 180 ms
106,752 KB
testcase_09 AC 282 ms
115,328 KB
testcase_10 AC 285 ms
115,716 KB
testcase_11 AC 283 ms
115,992 KB
testcase_12 AC 291 ms
115,980 KB
testcase_13 AC 281 ms
115,712 KB
testcase_14 AC 3,045 ms
266,116 KB
testcase_15 AC 2,221 ms
235,880 KB
testcase_16 AC 2,409 ms
247,824 KB
testcase_17 AC 1,986 ms
221,244 KB
testcase_18 AC 2,610 ms
255,356 KB
testcase_19 AC 2,285 ms
235,332 KB
testcase_20 AC 3,003 ms
268,172 KB
testcase_21 AC 2,715 ms
261,076 KB
testcase_22 AC 2,796 ms
262,996 KB
testcase_23 AC 1,895 ms
214,616 KB
testcase_24 TLE -
testcase_25 TLE -
testcase_26 TLE -
testcase_27 TLE -
testcase_28 TLE -
testcase_29 TLE -
testcase_30 TLE -
testcase_31 TLE -
testcase_32 TLE -
testcase_33 TLE -
testcase_34 AC 179 ms
106,368 KB
testcase_35 AC 179 ms
106,496 KB
testcase_36 AC 315 ms
131,844 KB
testcase_37 AC 180 ms
107,008 KB
testcase_38 AC 317 ms
131,984 KB
testcase_39 AC 180 ms
107,008 KB
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ソースコード

diff # 

import sys
import io, os
input = io.BytesIO(os.read(0,os.fstat(0).st_size)).readline

from operator import itemgetter

# https://github.com/tatyam-prime/SortedSet/blob/main/SortedMultiset.py
import math
from bisect import bisect_left, bisect_right
from typing import Generic, Iterable, Iterator, List, Tuple, TypeVar, Optional
T = TypeVar('T')

class SortedMultiset(Generic[T]):
    BUCKET_RATIO = 16
    SPLIT_RATIO = 24
    
    def __init__(self, a: Iterable[T] = []) -> None:
        "Make a new SortedMultiset from iterable. / O(N) if sorted / O(N log N)"
        a = list(a)
        n = self.size = len(a)
        if any(a[i] > a[i + 1] for i in range(n - 1)):
            a.sort()
        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:
        return list(self) == list(other)
    
    def __len__(self) -> int:
        return self.size
    
    def __repr__(self) -> str:
        return "SortedMultiset" + 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, int]:
        "return the bucket, index of the bucket and position in which x should be. self must not be empty."
        for i, a in enumerate(self.a):
            if x <= a[-1]: break
        return (a, i, 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 count(self, x: T) -> int:
        "Count the number of x."
        return self.index_right(x) - self.index(x)

    def add(self, x: T) -> None:
        "Add an element. / O(√N)"
        if self.size == 0:
            self.a = [[x]]
            self.size = 1
            return
        a, b, i = self._position(x)
        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 _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 discard(self, x: T) -> bool:
        "Remove an element and return True if removed. / O(√N)"
        if self.size == 0: return False
        a, b, i = self._position(x)
        if i == len(a) or a[i] != x: return False
        self._pop(a, b, 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 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 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

# エラトステネスの篩を用いた素因数分解・約数列挙
MAX=200000+10 # 使いたい最大値を指定

# Sieve[i]で、iの最も小さい約数を返す。
Sieve=[i for i in range(MAX)]

for i in range(2,MAX):
    if Sieve[i]!=i:
        continue
    
    for j in range(i,MAX,i):
        if Sieve[j]==j:
            Sieve[j]=i

# 素因数分解
def fact(x):
    D=dict()
    while x!=1:
        k=Sieve[x]
        if k in D:
            D[k]+=1
        else:
            D[k]=1
        x//=k
    return D

# 約数列挙
def faclist(x):
    LIST=[1]
    while x!=1:
        k=Sieve[x]
        count=0
        while x%k==0:
            count+=1
            x//=k

        LIST2=[]
        for l in LIST:
            for i in range(1,count+1):
                LIST2.append(l*k**i)
        LIST+=LIST2

    return LIST

N=int(input())
A=[list(map(int,input().split())) for i in range(N)]

A.sort(key=itemgetter(1),reverse=True)
A.sort(key=itemgetter(0))
ANS=0

A2=[]
for a,b in A:
    if A2 and A2[-1][0]==a:
        ANS=max(ANS,b)
    else:
        A2.append((a,b))

A=A2

A.sort(key=lambda x:x[0]*x[1])

LIST=[SortedMultiset() for i in range(202020)]
SA=[[] for i in range(202020)]

for a,b in A:
    SA[a]=faclist(a)

    for f in SA[a]:
        if len(LIST[f])>0:
            x=LIST[f][-1]
            ANS=max(ANS,x*f//a)
            
    for f in SA[a]:
        LIST[f].add(b)


print(ANS)
0