結果
| 問題 | No.2740 Old Maid |
| ユーザー |
👑  seekworser
|
| 提出日時 | 2024-04-23 09:58:23 |
| 言語 | Nim (2.0.2) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 14,363 bytes |
| コンパイル時間 | 4,133 ms |
| コンパイル使用メモリ | 69,852 KB |
| 実行使用メモリ | 29,760 KB |
| 最終ジャッジ日時 | 2024-10-15 09:52:28 |
| 合計ジャッジ時間 | 11,530 ms |
|
ジャッジサーバーID （参考情報） |
judge3 / judge4 |
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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 | TLE | - |
| testcase_01 | -- | - |
| testcase_02 | -- | - |
| testcase_03 | -- | - |
| testcase_04 | -- | - |
| testcase_05 | -- | - |
| testcase_06 | -- | - |
| testcase_07 | -- | - |
| testcase_08 | -- | - |
| testcase_09 | -- | - |
| testcase_10 | -- | - |
| testcase_11 | -- | - |
| testcase_12 | -- | - |
| testcase_13 | -- | - |
| testcase_14 | -- | - |
| testcase_15 | -- | - |
| testcase_16 | -- | - |
| testcase_17 | -- | - |
| testcase_18 | -- | - |
| testcase_19 | -- | - |
| testcase_20 | -- | - |
| testcase_21 | -- | - |
| testcase_22 | -- | - |
| testcase_23 | -- | - |
| testcase_24 | -- | - |
| testcase_25 | -- | - |
| testcase_26 | -- | - |
| testcase_27 | -- | - |
| testcase_28 | -- | - |
| testcase_29 | -- | - |
| testcase_30 | -- | - |
| testcase_31 | -- | - |
| testcase_32 | -- | - |
| testcase_33 | -- | - |
| testcase_34 | -- | - |
| testcase_35 | -- | - |
| testcase_36 | -- | - |
| testcase_37 | -- | - |
| testcase_38 | -- | - |
| testcase_39 | -- | - |
| testcase_40 | -- | - |
| testcase_41 | -- | - |
| testcase_42 | -- | - |
| testcase_43 | -- | - |
| testcase_44 | -- | - |
| testcase_45 | -- | - |
| testcase_46 | -- | - |
| testcase_47 | -- | - |
| testcase_48 | -- | - |
| testcase_49 | -- | - |
| testcase_50 | -- | - |
| testcase_51 | -- | - |
| testcase_52 | -- | - |
| testcase_53 | -- | - |
| testcase_54 | -- | - |
| testcase_55 | -- | - |
| testcase_56 | -- | - |
| testcase_57 | -- | - |
| testcase_58 | -- | - |
| testcase_59 | -- | - |
| testcase_60 | -- | - |
| testcase_61 | -- | - |
| testcase_62 | -- | - |
| testcase_63 | -- | - |
| testcase_64 | -- | - |
ソースコード
import macros;macro ImportExpand(s:untyped):untyped = parseStmt($s[2])
import macros
{.checks: off.}
# ImportExpand "cplib/tmpl/citrus.nim" <=== "when not declared CPLIB_TMPL_CITRUS:\n const CPLIB_TMPL_CITRUS* = 1\n {.warning[UnusedImport]: off.}\n {.hint[XDeclaredButNotUsed]: off.}\n import os\n import algorithm\n import sequtils\n import tables\n import macros\n import std/math\n import sets\n import strutils\n import strformat\n import sugar\n import streams\n import deques\n import bitops\n import heapqueue\n import options\n import hashes\n const MODINT998244353* = 998244353\n const MODINT1000000007* = 1000000007\n #[ include cplib/utils/infl ]#\n when not declared CPLIB_UTILS_INFL:\n const CPLIB_UTILS_INFL* = 1\n const INFi32* = 100100111.int32\n const INFL* = int(3300300300300300491)\n type double* = float64\n let readNext = iterator(getsChar: bool = false): string {.closure.} =\n while true:\n var si: string\n try: si = stdin.readLine\n except EOFError: yield \"\"\n for s in si.split:\n if getsChar:\n for i in 0..<s.len():\n yield s[i..i]\n else:\n if s.isEmptyOrWhitespace: continue\n yield s\n proc input*(t: typedesc[string]): string = readNext()\n proc input*(t: typedesc[char]): char = readNext(true)[0]\n proc input*(t: typedesc[int]): int = readNext().parseInt\n proc input*(t: typedesc[float]): float = readNext().parseFloat\n macro input*(t: typedesc, n: varargs[int]): untyped =\n var repStr = \"\"\n for arg in n:\n repStr &= &\"({arg.repr}).newSeqWith \"\n parseExpr(&\"{repStr}input({t})\")\n macro input*(ts: varargs[auto]): untyped =\n var tupStr = \"\"\n for t in ts:\n tupStr &= &\"input({t.repr}),\"\n parseExpr(&\"({tupStr})\")\n macro input*(n: int, ts: varargs[auto]): untyped =\n for typ in ts:\n if typ.typeKind != ntyAnything:\n error(\"Expected typedesc, got \" & typ.repr, typ)\n parseExpr(&\"({n.repr}).newSeqWith input({ts.repr})\")\n proc `fmtprint`*(x: int or string or char or bool): string = return $x\n proc `fmtprint`*(x: float or float32 or float64): string = return &\"{x:.16f}\"\n proc `fmtprint`*[T](x: seq[T] or Deque[T] or HashSet[T] or set[T]): string = return x.toSeq.join(\" \")\n proc `fmtprint`*[T, N](x: array[T, N]): string = return x.toSeq.join(\" \")\n proc `fmtprint`*[T](x: HeapQueue[T]): string =\n var q = x\n while q.len != 0:\n result &= &\"{q.pop()}\"\n if q.len != 0: result &= \" \"\n proc `fmtprint`*[T](x: CountTable[T]): string =\n result = x.pairs.toSeq.mapIt(&\"{it[0]}: {it[1]}\").join(\" \")\n proc `fmtprint`*[K, V](x: Table[K, V]): string =\n result = x.pairs.toSeq.mapIt(&\"{it[0]}: {it[1]}\").join(\" \")\n proc print*(prop: tuple[f: File, sepc: string, endc: string, flush: bool], args: varargs[string, `fmtprint`]) =\n for i in 0..<len(args):\n prop.f.write(&\"{args[i]}\")\n if i != len(args) - 1: prop.f.write(prop.sepc) else: prop.f.write(prop.endc)\n if prop.flush: prop.f.flushFile()\n proc print*(args: varargs[string, `fmtprint`]) = print((f: stdout, sepc: \" \", endc: \"\\n\", flush: false), args)\n const LOCAL_DEBUG{.booldefine.} = false\n macro getSymbolName(x: typed): string = x.toStrLit\n macro debug*(args: varargs[untyped]): untyped =\n when LOCAL_DEBUG:\n result = newNimNode(nnkStmtList, args)\n template prop(e: string = \"\"): untyped = (f: stderr, sepc: \"\", endc: e, flush: true)\n for i, arg in args:\n if arg.kind == nnkStrLit:\n result.add(quote do: print(prop(), \"\\\"\", `arg`, \"\\\"\"))\n else:\n result.add(quote do: print(prop(\": \"), getSymbolName(`arg`)))\n result.add(quote do: print(prop(), `arg`))\n if i != args.len - 1: result.add(quote do: print(prop(), \", \"))\n else: result.add(quote do: print(prop(), \"\\n\"))\n else:\n return (quote do: discard)\n proc `%`*(x: SomeInteger, y: SomeInteger): int =\n result = x mod y\n if y > 0 and result < 0: result += y\n if y < 0 and result > 0: result += y\n proc `//`*(x: SomeInteger, y: SomeInteger): int =\n result = x div y\n if y > 0 and result * y > x: result -= 1\n if y < 0 and result * y < x: result -= 1\n proc `^`*(x: SomeInteger, y: SomeInteger): int = x xor y\n proc `&`*(x: SomeInteger, y: SomeInteger): int = x and y\n proc `|`*(x: SomeInteger, y: SomeInteger): int = x or y\n proc `>>`*(x: SomeInteger, y: SomeInteger): int = x shr y\n proc `<<`*(x: SomeInteger, y: SomeInteger): int = x shl y\n proc `%=`*(x: var SomeInteger, y: SomeInteger): void = x = x % y\n proc `//=`*(x: var SomeInteger, y: SomeInteger): void = x = x // y\n proc `^=`*(x: var SomeInteger, y: SomeInteger): void = x = x ^ y\n proc `&=`*(x: var SomeInteger, y: SomeInteger): void = x = x & y\n proc `|=`*(x: var SomeInteger, y: SomeInteger): void = x = x | y\n proc `>>=`*(x: var SomeInteger, y: SomeInteger): void = x = x >> y\n proc `<<=`*(x: var SomeInteger, y: SomeInteger): void = x = x << y\n proc `[]`*(x, n: int): bool = (x and (1 shl n)) != 0\n proc `[]=`*(x: var int, n: int, i: bool) =\n if i: x = x or (1 << n)\n else: (if x[n]: x = x xor (1 << n))\n proc pow*(a, n: int, m = INFL): int =\n var\n rev = 1\n a = a\n n = n\n while n > 0:\n if n % 2 != 0: rev = (rev * a) mod m\n if n > 1: a = (a * a) mod m\n n >>= 1\n return rev\n #[ include cplib/math/isqrt ]#\n when not declared CPLIB_MATH_ISQRT:\n const CPLIB_MATH_ISQRT* = 1\n proc isqrt*(n: int): int =\n var x = n\n var y = (x + 1) shr 1\n while y < x:\n x = y\n y = (x + n div x) shr 1\n return x\n proc chmax*[T](x: var T, y: T): bool {.discardable.} = (if x < y: (x = y; return true; ) return false)\n proc chmin*[T](x: var T, y: T): bool {.discardable.} = (if x > y: (x = y; return true; ) return false)\n proc `max=`*[T](x: var T, y: T) = x = max(x, y)\n proc `min=`*[T](x: var T, y: T) = x = min(x, y)\n proc at*(x: char, a = '0'): int = int(x) - int(a)\n proc Yes*(b: bool = true): void = print(if b: \"Yes\" else: \"No\")\n proc No*(b: bool = true): void = Yes(not b)\n proc YES_upper*(b: bool = true): void = print(if b: \"YES\" else: \"NO\")\n proc NO_upper*(b: bool = true): void = Yes_upper(not b)\n const DXY* = [(0, -1), (0, 1), (-1, 0), (1, 0)]\n const DDXY* = [(1, -1), (1, 0), (1, 1), (0, -1), (0, 1), (-1, -1), (-1, 0), (-1, 1)]\n macro exit*(statement: untyped): untyped = (quote do: (`statement`; quit()))\n proc initHashSet[T](): Hashset[T] = initHashSet[T](0)\n"
import strutils, sequtils, algorithm, math, sugar, options
ImportExpand "cplib/collections/tatyamset.nim" <=== "# https://github.com/tatyam-prime/SortedSet/blob/main/SortedMultiset.py\nwhen not declared CPLIB_COLLECTIONS_TATYAMSET:\n import algorithm\n import math\n import sequtils\n import sugar\n import options\n const CPLIB_COLLECTIONS_TATYAMSET* = 1\n\n const BUCKET_RATIO = 16\n const SPLIT_RATIO = 24\n type SortedMultiSet*[T] = ref object\n size: int\n arr*: seq[seq[T]]\n proc initSortedMultiset*[T](v: seq[T] = @[]): SortedMultiSet[T] =\n #Make a new SortedMultiset from seq. / O(N) if sorted / O(N log N)\n var v = v\n if not isSorted(v):\n v.sort()\n var n = len(v)\n var bucket_size = int(ceil(sqrt(n/BUCKET_RATIO)))\n var arr = collect(newseq): (for i in 0..<bucket_size: v[(n*i div bucket_size) ..< (n*(i+1) div bucket_size)])\n result = SortedMultiSet[T](size: n, arr: arr)\n\n # def __reversed__(self) -> Iterator[T]:\n # for i in reversed(self.a):\n # for j in reversed(i): yield j\n\n # def __eq__(self, other) -> bool:\n # return list(self) == list(other)\n\n proc len*(self: SortedMultiSet): int =\n return self.size\n\n # def __repr__(self) -> str:\n # return \"SortedMultiset\" + str(self.a)\n\n # proc `$`*(self:SortedMultiSet):string=\n # var s = $(toseq(self))\n # return \"{\" & s[1 : len(s) - 1] & \"}\"\n\n proc position[T](self: SortedMultiSet[T], x: T): (int, int) =\n #\"return the bucket, index of the bucket and position in which x should be. self must not be empty.\"\n for i, a in self.arr:\n if x <= a[^1]:\n return (i, a.lowerBound(x))\n return (len(self.arr)-1, self.arr[^1].lowerBound(x))\n\n proc contains*[T](self: SortedMultiSet[T], x: T): bool =\n if self.size == 0: return false\n var (i, j) = self.position(x)\n return j != len(self.arr[i]) and self.arr[i][j] == x\n\n proc incl*[T](self: SortedMultiSet[T], x: T) =\n #\"Add an element. / O(√N)\"\n if self.size == 0:\n self.arr = @[@[x]]\n self.size = 1\n return\n var (b, i) = self.position(x)\n self.arr[b].insert(x, i)\n self.size += 1\n if len(self.arr[b]) > len(self.arr) * SPLIT_RATIO:\n var mid = len(self.arr[b]) shr 1\n self.arr.insert(self.arr[b][mid..<len(self.arr[b])], b+1)\n self.arr[b] = self.arr[b][0..<mid]\n\n proc innerpop[T](self: SortedMultiSet[T], b: int, i: int): T{.discardable.} =\n var b = b\n if b < 0:\n b = self.size + b\n var ans = self.arr[b][i]\n self.arr[b].delete(i)\n self.size -= 1\n if len(self.arr[b]) == 0: self.arr.delete(b)\n return ans\n\n proc excl*[T](self: SortedMultiSet[T], x: T): bool{.discardable.} =\n #\"Remove an element and return True if removed. / O(√N)\"\n if self.size == 0: return false\n var (b, i) = self.position(x)\n if i == len(self.arr[b]) or self.arr[b][i] != x: return false\n self.innerpop(b, i)\n return true\n\n proc lt*[T](self: SortedMultiSet[T], x: T): Option[T] =\n #\"Find the largest element < x, or None if it doesn't exist.\"\n for i in countdown(len(self.arr)-1, 0, 1):\n if self.arr[i][0] < x:\n return some(self.arr[i][lowerBound(self.arr[i], x) - 1])\n return none(T)\n\n proc le*[T](self: SortedMultiSet[T], x: T): Option[T] =\n #\"Find the largest element <= x, or None if it doesn't exist.\"\n for i in countdown(len(self.arr)-1, 0, 1):\n if self.arr[i][0] <= x:\n return some(self.arr[i][upperBound(self.arr[i], x) - 1])\n return none(T)\n\n proc gt*[T](self: SortedMultiSet[T], x: T): Option[T] =\n #\"Find the smallest element > x, or None if it doesn't exist.\"\n for i in 0..<len(self.arr):\n if self.arr[i][^1] > x:\n return some(self.arr[i][upperBound(self.arr[i], x)])\n return none(T)\n\n proc ge*[T](self: SortedMultiSet[T], x: T): Option[T] =\n #\"Find the smallest element >= x, or None if it doesn't exist.\"\n for i in 0..<len(self.arr):\n if self.arr[i][^1] >= x:\n return some(self.arr[i][lowerBound(self.arr[i], x)])\n return none(T)\n\n proc `[]`*[T](self: SortedMultiSet[T], i: int): T =\n var i = i\n #\"Return the i-th element.\"\n if i < 0:\n for j in countdown(len(self.arr)-1, 0, 1):\n i += len(self.arr[j])\n if i >= 0: return self.arr[j][i]\n else:\n for j in 0..<len(self.arr):\n if i < len(self.arr[j]): return self.arr[j][i]\n i -= len(self.arr[j])\n raise newException(IndexDefect, \"index \" & $i & \" not in 0 .. \" & $(self.size-1))\n\n proc pop*[T](self: SortedMultiSet[T], i: int = -1): T =\n #\"Pop and return the i-th element.\"\n var i = i\n if i < 0:\n for b in countdown(len(self.arr)-1, 0, 1):\n i += len(self.arr[b])\n if i >= 0: return self.innerpop(not b, i)\n else:\n for b in 0..<len(self.arr):\n if i < len(self.arr[b]): return self.innerpop(b, i)\n i -= len(self.arr[b])\n raise newException(IndexDefect, \"index \" & $i & \" not in 0 .. \" & $(self.size-1))\n\n proc index*[T](self: SortedMultiSet[T], x: T): int =\n #\"Count the number of elements < x.\"\n for i in 0..<len(self.arr):\n if self.arr[i][^1] >= x:\n return result + lowerBound(self.arr[i], x)\n result += len(self.arr[i])\n\n proc index_right*[T](self: SortedMultiSet[T], x: T): int =\n #\"Count the number of elements <= x.\"\n for i in 0..<len(self.arr):\n if self.arr[i][^1] > x:\n return result + upperBound(self.arr[i], x)\n result += len(self.arr[i])\n proc count*[T](self: SortedMultiSet[T], x: T): int =\n #\"Count the number of x.\"\n return self.index_right(x) - self.index(x)\n\n iterator items*[T](self: SortedMultiSet[T]): T =\n for i in 0..<len(self.arr):\n for j in self.arr[i]:\n yield j\n"
var n = stdin.readLine.parseInt
var p = stdin.readLine.split.map(parseint)
var pi = newSeq[int](n)
for i in 0..<n: pi[p[i]] = i
var st, rem = initSortedMultiSet[int]()
for i in 0..<n:
st.incl(i * 1000000 + p[i])
rem.incl(i)
# var ans = newSeq[int]()
# for i in 0..<n//2:
# var x, y: int
# for xi in rem:
# x = xi
# var idx = st.index(pi[x] * 1000000 + x)
# if idx == st.len - 1: continue
# var y = (st[idx + 1]) % 1000000
# ans.add(@[x, y])
# rem.excl(x)
# rem.excl(y)
# st.excl(pi[x] * 1000000 + x)
# st.excl(pi[y] * 1000000 + y)
# break
# print(ans.mapit(it+1))