結果
問題 | No.1184 Hà Nội |
ユーザー | nimon |
提出日時 | 2020-08-22 13:39:52 |
言語 | Nim (2.0.2) |
結果 |
CE
(最新)
AC
(最初)
|
実行時間 | - |
コード長 | 16,981 bytes |
コンパイル時間 | 1,186 ms |
コンパイル使用メモリ | 83,808 KB |
最終ジャッジ日時 | 2024-11-14 23:32:31 |
合計ジャッジ時間 | 1,598 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
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コンパイルエラー時のメッセージ・ソースコードは、提出者また管理者しか表示できないようにしております。(リジャッジ後のコンパイルエラーは公開されます)
ただし、clay言語の場合は開発者のデバッグのため、公開されます。
ただし、clay言語の場合は開発者のデバッグのため、公開されます。
コンパイルメッセージ
stack trace: (most recent call last) Main.nim(224, 19) inputs macros.nim(1219, 27) expectKind /home/judge/data/code/Main.nim(458, 1) template/generic instantiation of `inputs` from here /home/judge/data/code/Main.nim(459, 3) Error: Expected one of {nnkIdent, nnkPar}, got nnkTupleConstr
ソースコード
when NimMajor <= 0 and NimMinor <= 18: import future else: import sugar # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # when defined release: {.checks: off.} # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # from typetraits import arity from sequtils import map, mapIt, newSeqWith, toSeq from strutils import split, parseInt, parseFloat, parseBool, parseEnum, parseBiggestInt when NimMajor == 0 and NimMinor >= 14: from strutils import parseBiggestUInt import macros from terminal import setForegroundColor, ForegroundColor, resetAttributes proc warn(message: string) = when not defined release: stderr.setForegroundColor(fgYellow) stderr.write("注意: ") stderr.resetAttributes stderr.writeLine message when not declared parseBiggestUInt: proc parseBiggestUInt(s: string): uint64 = uint64(parseInt(s)) when not declared SomeFloat: type SomeFloat = float | float64 | float32 when not defined nimHasRunnableExamples: template runnableExamples*(body: untyped) = discard proc parseT(s: string; T: typedesc): auto = ## `parse` 系関数のジェネリック版 ## `T` が `SomeOrdinal | SomeFloat` (subranges を含む) でない場合,そのまま `s` を返す runnableExamples: doAssert parseT("12", int) == 12 doAssert parseT("12", uint) == 12 doAssert parseT("12", int64) == 12 doAssert parseT("12", float32) == 12.0 doAssert parseT("Yes", bool) == true when T is SomeSignedInt: cast[T](parseBiggestInt(s)) elif T is SomeUnsignedInt: cast[T](parseBiggestUInt(s)) elif T is SomeFloat: cast[T](parseFloat(s)) elif T is enum: parseEnum[T](s) elif T is bool: parseBool(s) elif T is char: s[0] else: s proc unpackWithParse*(input: openArray[string]; T: typedesc[tuple]): T = ## 文字列配列を `T` で指定された `tuple` に `parse` しながら変換する runnableExamples: let t = unpackWithParse(@["1", "1", "1", "1", "1"], 4, tuple[a: int8, b: uint32, c: float64, d: bool]) doAssert int8 is t.a.type and t.a == 1 doAssert uint32 is t.b.type and t.b == 1 doAssert float64 is t.c.type and t.c == 1.0 doAssert bool is t.d.type and t.d == true doAssert tuple[a: int8, b: uint32, c: float64, d: bool] is t.type var i = 0 for x in result.fields: if i > input.high: warn "元の配列の長さが " & $T.arity & " 未満だから,一部デフォルト値になってるよ" break x = parseT(input[i], x.type) i.inc result proc input(T: typedesc[string]): string = stdin.readLine proc input(T: typedesc[SomeOrdinal | SomeFloat | char]): auto = input(string).parseT(T) proc input(T: typedesc[seq[string]]): auto = input(string).split proc input(T: typedesc[seq[char]]): auto = toSeq(input(string).items) proc input[E: SomeOrdinal | SomeFloat](T: typedesc[seq[E]]): auto = input(seq[string]).mapIt(it.parseT(E.type)) proc input(T: typedesc[tuple]): auto = input(seq[string]).unpackWithParse(T) proc toTupleType(parTuple: NimNode): NimNode {.compileTime.} = ## `nnkPar` で表現されてる名前付きタプルを `tuple[]` 形式に変換する ## `nnkPar` が名前付きタプルじゃない場合は,そのまま返す runnableExamples: static: doAssert((quote do: (a: int, b: float)).toTupleType == (quote do: tuple[a: int, b: float])) doAssert((quote do: (a, b: int)).toTupleType == (quote do: tuple[a, b: int])) doAssert((quote do: (int, int)).toTupleType == (quote do: (int, int))) doAssert((quote do: ()).toTupleType == (quote do: ())) if parTuple.len == 0 or parTuple.findChild(it.kind == nnkExprColonExpr) == nil: # () or (T, U, ...) result = parTuple else: result = newTree(nnkTupleTy) var identDefs = newTree(nnkIdentDefs) for field in parTuple: if field.kind == nnkIdent: # (a, b, ..., x: T) の a, b, ... 部分 (x 以外) identDefs.add(field) field.copyChildrenTo(identDefs) if field.kind != nnkIdent: # (..., x: T, y: ...) の x: T 部分 identDefs.add(newEmptyNode()) result.add(identDefs) identDefs = newTree(nnkIdentDefs) proc seqInputCall(bracketTree: NimNode): NimNode {.compileTime.} = ## `seq[N, seq[M, ..., [seq[T]]...]]` を `newSeqWith(N, newSeqWith(M, ..., input(seq[T])...))` にする if bracketTree.kind != nnkBracketExpr: case bracketTree.kind: of nnkPar: # x: (Field0: ...) result = newCall("input", bracketTree.toTupleType) else: # x: T result = newCall("input", bracketTree) else: case bracketTree.len: of 2: # seq[N, ... seq[T] ...] の seq[T] if bracketTree[^1].kind == nnkBracketExpr: error("seq[seq[T]] みたいな書き方はできないって言ったでしょ! seq[N, seq[T]] みたいに書き直してっ") result = newCall("input", bracketTree) of 3: # それ以外 (seq[N, ...]) result = newCall("newSeqWith", bracketTree[1], seqInputCall(bracketTree[^1])) else: error("変な入力があるよ") proc appendedProcCallBlocks(procCalls: NimNode; i: int): NimNode = ## `procCalls[i]` の関数呼び出しを ## .. code-block:: Nim ## block: ## var it = procCall(...) ## という形に変換しながらつなげていく ## 最後だけは ## .. code-block:: Nim ## block: ## var it = lastProcCall(...) ## it ## というようにして `it` を返すようにする let it = ident("it") let procCall = procCalls[i] result = newStmtList(quote do: var `it` = `procCall` ) if i == procCalls.len - 1: # 最後の要素だけは it を返すようにする result.add(it) else: result.add(appendedProcCallBlocks(procCalls, i + 1)) result = newBlockStmt(result) proc inputsImpl(pre, post: NimNode): NimNode {.compileTime.} = ## pre で指定された変数に post の結果を入れる # input() 部分の生成 var inputCall: NimNode case pre.kind: of nnkPar: # (x, y, ...): ... result = newTree(nnkVarTuple) pre.copyChildrenTo(result) result.add(newEmptyNode()) case post[0].kind: of nnkPar: # (x, y, ...): (T, T, ...) inputCall = newCall("input", post[0].toTupleType) of nnkTupleTy: # (x, y, ...): tuple[Field0: ...] inputCall = newCall("input", post) else: # (x, y, ...): T var parTupleTy = newTree(nnkPar) for _ in 0..<pre.len: parTupleTy.add(post[0]) # (int, int, int, ...) みたいなのを作ってる inputCall = newCall("input", parTupleTy) else: # x: ... result = newTree(nnkIdentDefs).add(pre).add(newEmptyNode()) case post[0].kind: of nnkPar: # x: (Field0: ...) inputCall = newCall("input", post[0].toTupleType) of nnkBracketExpr: inputCall = seqInputCall(post[0]) else: # x: T inputCall = newCall("input", post[0]) # 関数部分の生成(ある場合)と結合 if post.len > 1: let it = ident("it") var itStmts = when NimMajor == 0 and NimMinor < 17: newStmtList(quote do: (var `it` = `inputCall`)) # 入力の読み込み else: newStmtList(quote do: (var `it` {.used.} = `inputCall`)) itStmts.add(appendedProcCallBlocks(post, 1)) # 関数の適用 result.add(newTree(nnkStmtListExpr, newBlockStmt(itStmts))) # 結合 else: result.add(inputCall) # 結合 macro inputs*(body: untyped): untyped = ## 入力を受け取る ## 宣言の後に `it` を用いた式を(`y` みたいに用いなくてもいいんだけど)いくつでもかくことができ, ## その返り値が変数の値となる ## 式中で型が変わってもいい(下の例の `u`, `y` とか見たいな感じ) ## ## .. code-block:: Nim ## inputs: ## a: int ## b: string ## c: (x: char, y: float) ## d: tuple[x: char, y: float] ## e: (u, v: BiggestInt) ## f: tuple[u, v: int] ## g: seq[int] ## h: seq[a, seq[int]] ## i: seq[a, (s, t: int)] ## (j, k, l): int ## (m, n): (char, float) ## o: seq[a, string] ## (p): int ## q: seq[int]; it.sorted(system.cmp) ## r: seq[float]; it.sorted(cmp).filterIt(it > 0) ## s: seq[char] ## t: seq[2, seq[a, int]] ## u: string; parseInt(it); abs(-it) ## (_, v): (a: char, b: char) ## (w, x): tuple[a, b: char] ## y: int; "hoge" expectKind(body, nnkStmtList) result = newTree(nnkStmtList) var letSection = newTree(nnkLetSection) for decl in body: case decl[0].kind: of nnkIdent: # x: ... letSection.add(inputsImpl(decl[0], decl[1])) of nnkPar: expectMinLen(decl[0], 1) if decl[0].len == 1: # (x): ... これは x: ... と同じ扱いにしたい letSection.add(inputsImpl(decl[0][0], decl[1])) else: # (x, y, ...): ... letSection.add(inputsImpl(decl[0], decl[1])) else: expectKind(decl[0], {nnkIdent, nnkPar}) result.add(letSection) # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # proc `ceilDiv`*[T](x, y: T): T = x div y + ord(x mod y != 0) proc `//=`*(x: var SomeInteger; y: SomeInteger) = x = x div y proc `%=`*(x: var SomeInteger; y: SomeInteger) = x = x mod y proc `<?=`*[T](x: var T; y: T) = x = min(x, y) proc `>?=`*[T](x: var T; y: T) = x = max(x, y) # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # proc withIndex*[T](s: openArray[T]): seq[tuple[i: int, v: T]] = (0..s.high).mapIt((it, s[it])) # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # template countIt*[T](a: openArray[T]; pred: untyped): int = var result = 0 for it {.inject.} in items(a): if pred: result.inc result # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # proc reversed*(s: string): string = result = newString(s.len) for i, c in s: result[s.len - i - 1] = c # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # from sequtils import newSeqWith, allIt template newSeqWithImpl[T](lens: seq[int]; init: T; currentDimension, lensLen: static[int]): untyped = when currentDimension == lensLen: newSeqWith(lens[currentDimension - 1], init) else: newSeqWith(lens[currentDimension - 1], newSeqWithImpl(lens, init, currentDimension + 1, lensLen)) template newSeqWith*[T](lens: varargs[int]; init: T): untyped = assert(lens.allIt(it > 0)) newSeqWithImpl(@lens, init, 1, lens.len) # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # when not defined(release): template stderrEcho*(x: varargs[string, `$`]) = for v in x: stderr.write(v) stderr.writeLine "" template stderrEcho*[T](x: seq[seq[T]]) = for v in x: stderrEcho v template stderrEcho*(x: seq[string]) = for v in x: stderrEcho v else: template stderrEcho*(x: untyped) = discard # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # template useMint*(MOD: range[2..int.high]) = ## mint型を使えるようにする ## ## .. code-block:: Nim ## useMint(1_000_000_007) ## let (n, m) = (3.toMint, 5.toMint) type mint* {.inject.} = distinct int #--- 型変換 ---# proc toMint*(n: SomeInteger): mint = if n < -MOD: mint(n mod MOD + MOD) elif n < 0: mint(n + MOD) elif n >= MOD: mint(n mod MOD) else: mint(n) proc toInt*(n: mint): int = int(n) #--- 逆元 ---# proc inverse*(n: mint): mint = ## 逆元 O(log(MOD)) ## 非再帰extGcd版: ax + by = 1 を満たす x が b を法とした a の逆元 ## 参考: https://topcoder.g.hatena.ne.jp/iwiwi/20130105/1357363348 var (a, x, b, y) = (MOD, 0, n.toInt, 1) while b != 0: let tmp = a div b a -= tmp * b; swap(a, b) x -= tmp * y; swap(x, y) assert(x.toMint.toInt * n.toInt mod MOD == 1) return x.toMint proc `~`*(n: mint): mint = n.inverse #--- 単項演算子 ---# proc `+`*(n: mint): mint {.borrow.} proc `-`*(n: mint): mint = mint(MOD - n.toInt) proc `$`*(n: mint): string {.borrow.} #--- 二項演算子 ---# # 比較 # template extendComparisonOperatorToInt(op: untyped) = proc op*(n: mint; m: int): bool = op(n, m.toMint) proc op*(n: int; m: mint): bool = op(n.toMint, m) proc `<`*(n, m: mint): bool {.borrow.} extendComparisonOperatorToInt(`<`) proc `<=`*(n, m: mint): bool {.borrow.} extendComparisonOperatorToInt(`<=`) proc `==`*(n, m: mint): bool {.borrow.} extendComparisonOperatorToInt(`==`) # 算術 # template extendArithmeticOperatorToInt(op: untyped) = proc op*(n: mint; m: int): mint = op(n, m.toMint) proc op*(n: int; m: mint): mint = op(n.toMint, m) proc `mod`*(n, m: mint): mint = (n.toInt mod m.toInt).toMint proc `mod`*(n: mint, m: int): mint = (n.toInt mod m).toMint proc `mod`*(n: int, m: mint): mint = (n mod m.toInt).toMint proc `%`*(n, m: mint): mint = n mod m proc `%`*(n: mint; m: int): mint = n mod m proc `%`*(n: int; m: mint): mint = n mod m proc `+`*(n, m: mint): mint = (n.toInt + m.toInt).toMint extendArithmeticOperatorToInt(`+`) proc `-`*(n, m: mint): mint = n + (-m) extendArithmeticOperatorToInt(`-`) proc `*`*(n, m: mint): mint = (n.toInt * m.toInt).toMint extendArithmeticOperatorToInt(`*`) proc `div`*(n, m: mint): mint = # O(log(MOD)) n * m.inverse extendArithmeticOperatorToInt(`div`) proc `/`*(n, m: mint): mint = n div m extendArithmeticOperatorToInt(`/`) proc mul*(n: mint; m: int): mint = ## MOD が大きすぎるとき用の掛け算 O(log(m)) (足し算で掛け算を計算するので) result = m.toMint var (n, m) = (n, m) while m != 0: if (m and 1) == 1: result = result + n n = n + n m = m shr 1 proc mul*(n, m: mint): mint = mul(n, m.toInt) proc mul*(n: int; m: mint): mint = mul(m, n) # 算術代入 # proc `%=`*(n: var mint; m: mint | int) = (n = n % m.int) proc `+=`*(n: var mint; m: mint | int) = (n = n + m.int) proc `-=`*(n: var mint; m: mint | int) = (n = n - m.int) proc `*=`*(n: var mint; m: mint | int) = (n = n * m.int) proc `/=`*(n: var mint; m: mint | int) = (n = n / m.int) #--- 累乗 ---# proc pow*(n: mint; m: int): mint = # O(log(m)) if m < 0: return pow(n.inverse, -m) var (nn, mm) = (n, m) result = 1.toMint while mm != 0: if (mm and 1) == 1: result = result * nn nn = nn * nn mm = mm shr 1 proc pow*(n, m: mint): mint = n.pow(m.toInt) proc pow*(n: int; m: mint): mint = n.toMint.pow(m.toInt) proc `^`*(n, m: mint): mint = n.pow(m) proc `^`*(n: mint; m: int): mint = n.pow(m) proc `^`*(n: int; m: mint): mint = n.pow(m) # これは戻り値が mint でいいのか疑問ではある #--- その他関数 ---# proc succ*(x: mint; y: int = 1): mint = x + y proc succ*(x: mint; y: mint): mint = x + y proc pred*(x: mint; y: int = 1): mint = x - y proc pred*(x: mint; y: mint): mint = x - y proc inc*(x: var mint; y: int = 1) = (x += y) proc inc*(x: var mint; y: mint) = (x += y) proc dec*(x: var mint; y: int = 1) = (x -= y) proc dec*(x: var mint; y: mint) = (x -= y) template useNumberOfCases*(size = 3_000_000) = ## 場合の数(組み合わせとか)関係の関数も使えるようにする ## ## .. code-block:: Nim ## useMint(1_000_000_007) ## useNumberOfCases(1_000_000) ## let (n, m) = (3.toMint, 5.toMint) ## m.C(n) # => 10 proc init(): tuple[facs, facInvs: seq[mint]] = ## MODを法とした階乗テーブルとその逆元テーブルの作成 result = (newSeq[mint](size + 1), newSeq[mint](size + 1)) result.facs[0] = mint(1) for i in 1..size: result.facs[i] = result.facs[i - 1] * i result.facInvs[size] = result.facs[size].inverse for i in countdown(size - 1, 0): result.facInvs[i] = result.facInvs[i + 1] * (i + 1) let (facs, facInvs) = init() # const にすると too many iterations template extendNumberOfCases(f: untyped) = ## mint と int を混ぜたり,int だけで ## 使ってもいいように場合の数を求める関数を拡張する proc f*(n: mint; r: int): mint = f(n, mint(r)) proc f*(n: int; r: mint): mint = f(mint(n), r) proc f*(n, r: int): int = f(mint(n), mint(r)).toInt proc C*(n, r: mint): mint = let (n, r) = (n.toInt, r.toInt) if r < 0 or n < r: mint(0) else: facs[n] * facInvs[r] * facInvs[n - r] extendNumberOfCases(C) proc P*(n, r: mint): mint = let (n, r) = (n.toInt, r.toInt) if r < 0 or n < r: mint(0) else: facs[n] * facInvs[n - r] extendNumberOfCases(P) proc H*(n, r: mint): mint = if r == 0: mint(1) else: C(n + r - 1, r) extendNumberOfCases(H) # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # const MOD = 998244353 useMint(MOD) inputs: (N, L): int let M = (N + L - 1) div L echo 2.toMint^M - 1