結果
| 問題 |
No.2665 Minimize Inversions of Deque
|
| コンテスト | |
| ユーザー |
 Yakumo221
|
| 提出日時 | 2024-03-08 21:49:42 |
| 言語 | PyPy3 (7.3.15) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 7,433 bytes |
| コンパイル時間 | 487 ms |
| コンパイル使用メモリ | 82,648 KB |
| 実行使用メモリ | 267,992 KB |
| 最終ジャッジ日時 | 2024-09-29 19:29:59 |
| 合計ジャッジ時間 | 4,338 ms |
|
ジャッジサーバーID （参考情報） |
judge4 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 1 TLE * 1 -- * 38 |
ソースコード
# library from https://prd-xxx.hateblo.jp/entry/2020/02/07/114818
class Deque:
def __init__(self, src_arr=[], max_size=300000):
self.N = max(max_size, len(src_arr)) + 1
self.buf = list(src_arr) + [None] * (self.N - len(src_arr))
self.head = 0
self.tail = len(src_arr)
def __index(self, i):
l = len(self)
if not -l <= i < l: raise IndexError('index out of range: ' + str(i))
if i < 0:
i += l
return (self.head + i) % self.N
def __extend(self):
ex = self.N - 1
self.buf[self.tail+1 : self.tail+1] = [None] * ex
self.N = len(self.buf)
if self.head > 0:
self.head += ex
def is_full(self):
return len(self) >= self.N - 1
def is_empty(self):
return len(self) == 0
def append(self, x):
if self.is_full(): self.__extend()
self.buf[self.tail] = x
self.tail += 1
self.tail %= self.N
def appendleft(self, x):
if self.is_full(): self.__extend()
self.buf[(self.head - 1) % self.N] = x
self.head -= 1
self.head %= self.N
def pop(self):
if self.is_empty(): raise IndexError('pop() when buffer is empty')
ret = self.buf[(self.tail - 1) % self.N]
self.tail -= 1
self.tail %= self.N
return ret
def popleft(self):
if self.is_empty(): raise IndexError('popleft() when buffer is empty')
ret = self.buf[self.head]
self.head += 1
self.head %= self.N
return ret
def __len__(self):
return (self.tail - self.head) % self.N
def __getitem__(self, key):
return self.buf[self.__index(key)]
def __setitem__(self, key, value):
self.buf[self.__index(key)] = value
def __str__(self):
return 'Deque({0})'.format(str(list(self)))
# 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
def solve():
n = int(input())
plist = list(map(int, input().split()))
deq = Deque()
deq.append(plist[0])
ss = SortedSet()
ss.add(plist[0])
tento = 0
f = plist[0]
for i in range(1, n):
p = plist[i]
low = ss.index(p)
up = i - low
if low > up:
tento += up
deq.append(p)
elif low == up:
if f < p:
tento += up
deq.append(p)
else:
tento += low
f = p
deq.appendleft(p)
else:
tento += low
f = p
deq.appendleft(p)
ss.add(p)
print(tento)
print(*deq)
q = int(input())
while q:
q -= 1
solve()