#39346 (Scala(Beta)) No.251 大きな桁の復習問題(1)

提出ソース

結果

問題	No.251 大きな桁の復習問題(1)
ユーザー	ともき
提出日時	2015-07-25 06:51:29
言語	Scala(Beta) (3.6.2)
結果	CE (最新) AC (最初)
実行時間	-
コード長	6,955 bytes
コンパイル時間	6,744 ms
コンパイル使用メモリ	232,416 KB
最終ジャッジ日時	2024-11-14 19:07:17
合計ジャッジ時間	7,633 ms
ジャッジサーバーID （参考情報）	judge5 / judge1

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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。

コンパイルメッセージ

[31m[31m-- [E100] Syntax Error: Main.scala:43:14 ---------------------------------------[0m[0m
[31m43 |[0m    [33mval[0m n,m = nextBigInt
[31m[31m   |[0m              ^^^^^^^^^^[0m
[31m   |[0m    [33mmethod[0m [35mnextBigInt[0m in [33mclass[0m [35mMyConsole[0m must be called with () argument
[31m   |[0m
[31m   |[0m longer explanation available when compiling with `-explain`
[31m[31m-- [E100] Syntax Error: Main.scala:83:70 ---------------------------------------[0m[0m
[31m83 |[0m    [33mdef[0m [36mreadIntVector[0m()    : [35mVector[0m[[35mInt[0m]    = parseLineToVector(() => nextInt)
[31m[31m   |[0m                                                                      ^^^^^^^[0m
[31m   |[0m       [33mmethod[0m [35mnextInt[0m in [33mclass[0m [35mMyConsole[0m must be called with () argument
[31m   |[0m
[31m   |[0m longer explanation available when compiling with `-explain`
[31m[31m-- [E100] Syntax Error: Main.scala:84:70 ---------------------------------------[0m[0m
[31m84 |[0m    [33mdef[0m [36mreadLongVector[0m()   : [35mVector[0m[[35mLong[0m]   = parseLineToVector(() => nextLong)
[31m[31m   |[0m                                                                      ^^^^^^^^[0m
[31m   |[0m      [33mmethod[0m [35mnextLong[0m in [33mclass[0m [35mMyConsole[0m must be called with () argument
[31m   |[0m
[31m   |[0m longer explanation available when compiling with `-explain`
[31m[31m-- [E100] Syntax Error: Main.scala:85:70 ---------------------------------------[0m[0m
[31m85 |[0m    [33mdef[0m [36mreadStringVector[0m() : [35mVector[0m[[35mString[0m] = parseLineToVector(() => nextString)
[31m[31m   |[0m                                                                      ^^^^^^^^^^[0m
[31m   |[0m    [33mmethod[0m [35mnextString[0m in [33mclass[0m [35mMyConsole[0m must be called with () argument
[31m   |[0m
[31m   |[0m longer explanation available when comp

ソースコード

raw source code

プレゼンテーションモードにする


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import scala.annotation.tailrec
import net.pushl.io.MyConsole
// Document: http://www.scala-lang.org/api/current/#package
// -----------------------------------------------------------------------------
class Solver(val stdio: MyConsole){
  import stdio._ // shadow Console.~
  // def pow(x: BigInt, n: BigInt, mod: Long) : BigInt = {
  //   if(n == 0)
  //     BigInt(1)
  //   else{
  //     val t = pow((x*x)%mod,n/2,mod)
  //     if(n % 2 == 1) (t*x) % mod
  //     else t % mod
  //   }
  // }
  // def pow(x: Long, n: BigInt, mod: Long) : Long = {
  //   if(n == 0)
  //     1
  //   else{
  //     val t = pow((x*x)%mod,n/2,mod)
  //     if(n % 2 == 1) (t*x) % mod
  //     else t % mod
  //   }
  // }
  // def pow(x: Long, n: BigInt, mod: Long) : Long = {
  //   @tailrec
  //   def powi(x: Long, n: BigInt, res: Long) : Long = {
  //     if(n == 0)
  //       res
  //     else if(n == 1)
  //       (x*res)%mod
  //     else if((n & BigInt(1)) == BigInt(1))
  //       powi((x*x)%mod,n >> 1,(res*x)%mod)
  //     else
  //       powi((x*x)%mod,n >> 1,res)
  //   }
  //   powi(x,n,1)
  // }
  def main() : Unit = {
    val mod = 129402307
    val n,m = nextBigInt
    println(n.modPow(m,mod))
    // println(pow(n,m,mod))
    // println(pow((n % mod).toLong, m ,mod))
  }
}
// ----------------------------------------------------------------------------0
// ----------------------------------------------------------------------------0
object Main {
  def main(args: Array[String]) : Unit = {
    val console = new MyConsole(Console.in, Console.out, Console.err)
    val solver  = new Solver(console)
    solver.main()
    console.flush()
  }
}
package net.pushl.io {
  import java.io.{BufferedReader, PrintWriter, PrintStream, PushbackReader}
  class MyConsole(val in: BufferedReader, val _out: PrintStream,
                  val err: PrintStream) {
    // PrintWriter do not flush automatically
    val out = new PrintWriter(_out,false)
    // If argument is null, there are ambiguous which function will be called
    def print(obj: Any)                  = out.print(if(obj == null) "null" else obj.toString)
    def println()                        = out.println()
    def println(obj: Any)                = out.println(obj)
    def printf(text: String, args: Any*) = out.printf(text.format(args : _*))
    // NOTE: YOU MUST FLUSH BEFORE END OF MAIN
    def flush()                          = out.flush()
    def debugln(obj: Any)                = err.println(obj)
    def readIntVector()    : Vector[Int]    = parseLineToVector(() => nextInt)
    def readLongVector()   : Vector[Long]   = parseLineToVector(() => nextLong)
    def readStringVector() : Vector[String] = parseLineToVector(() => nextString)
    def nextInt()          : Int            = nextLong().toInt
    def nextBigInt()       : BigInt         = BigInt(nextString())
    def nextBigDecimal(  ) : BigDecimal     = BigDecimal(nextString())
    def nextDouble()       : Double         = nextString().toDouble
    def nextLong() : Long = {
      if(!goNextValuable())
        throw new NoSuchElementException("Reading long failed")
      val sgn = if(peek == '-') -1l else 1
      if(sgn == -1l) read()
      if(peek < '0' || '9' < peek)
        throw new NumberFormatException(s"readLong found only '-' or no number")
      @tailrec
      def readLong(next: Int, cur: Long) : Long =
        if('0' <= next && next <= '9')
          readLong(readWithoutCheckingPeeked(), cur*10 + next-'0')
        else if(isEnd(next) || isSpaceOrControl(next))
          sgn*cur
        else
          throw new NumberFormatException(s"readLong found strange byte $next")
      val res = readLong(read(),0)
      skipTrailingSpaces()
      res
    }
    def nextString() : String = {
      if(!goNextValuable())
        throw new NoSuchElementException("Reading String failed")
      val builder = new StringBuilder
      @tailrec
      def appendCode(next: Int) : String = {
        if(isEnd(next) || isSpaceOrControl(next)){
          builder.toString
        }else{
          builder.append(next.toChar)
          appendCode(readWithoutCheckingPeeked())
        }
      }
      val res = appendCode(read())
      skipTrailingSpaces()
      res
    }
    // TODO: refactoring to marge nextString
    def readLine() : String = {
      if(isEnd(peek))
        throw new NoSuchElementException("Reading Line failed")
      val builder = new StringBuilder
      @tailrec
      def appendCode(next: Int) : String = {
        if(isEnd(next) || isNewLine(next)){
          builder.toString
        }else{
          builder.append(next.toChar)
          appendCode(read())
        }
      }
      appendCode(read())
    }
    // helpers
    private[this] var peeked: Option[Int] = None
    private[this] var last = -1
    private def read() = {
      val res = peeked match {
          case None    => in.read()
          case Some(a) => { peeked = None; a }
        }
      last = res
      res
    }
    @inline private def readWithoutCheckingPeeked() = {
      val res = in.read()
      last = res
      res
    }
    @inline private def peek() =
      peeked match {
        case None    => {
          val res = in.read()
          peeked  = Some(res)
          res
        }
        case Some(a) => a
      }
    @inline private def isEnd(c: Int)    = c == -1
    @inline private def isNewLine(c: Int) = c == 10 || c == 13     // LF and CR
    @inline private def isThereReadable() = !isEnd(peek)
    // XXX: this limits c is ASCII?
    @inline private def isSpaceOrControl(c: Int) = (0 <= c && c <= 32) || c == 127
    @tailrec
    final private def goNextNotSpaceNorControl() : Unit =
      if(isSpaceOrControl(peek)){
        read()
        goNextNotSpaceNorControl()
      }
    final private def skipTrailingSpaces() : Unit = {
      @tailrec
      def skipTrailingSpacesAux() : Unit = {
        if(!isNewLine(last) && !isNewLine(peek) && isSpaceOrControl(peek)){
          read()
          skipTrailingSpacesAux()
        }
      }
      skipTrailingSpacesAux
      if(!isNewLine(last) && isNewLine(peek)) {val _ = read()}
    }
    @tailrec
    final private def skipTrailingSpacesAndNewline() : Unit =
      if(isNewLine(peek)){
        val _ = read() // windows causes error. maybe.
      }else if(isSpaceOrControl(peek)){
        read()
        skipTrailingSpacesAndNewline()
      }
    @inline private def goNextValuable() = {
      goNextNotSpaceNorControl()
      isThereReadable()
    }
    @inline private def parseLineToVector[X](parser: () => X) : Vector[X] = {
      import scala.collection.immutable.VectorBuilder
      val vb = new VectorBuilder[X]()
      @tailrec
      def parseLineToVectorAux(first: Boolean=false) : Vector[X] =
        if((!first && isNewLine(last)) || isNewLine(peek) || isEnd(peek)) {
          vb.result
        }else{
          vb += parser()
          parseLineToVectorAux()
        }
      parseLineToVectorAux(true)
    }
  }
}
 
 
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