結果

問題 No.926 休日の平均
ユーザー Goryudyuma
提出日時 2020-01-02 19:35:58
言語 Scala(Beta)
(3.6.2)
結果
AC  
実行時間 971 ms / 2,000 ms
コード長 7,076 bytes
コンパイル時間 17,930 ms
コンパイル使用メモリ 280,924 KB
実行使用メモリ 65,012 KB
最終ジャッジ日時 2024-11-22 18:16:49
合計ジャッジ時間 41,935 ms
ジャッジサーバーID
(参考情報)
judge2 / judge3
このコードへのチャレンジ
(要ログイン)
ファイルパターン 結果
other AC * 24
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

//import java.util.Scanner
import java.io._
import java.nio.file.Files._
import java.nio.file.Path
import java.util.StringTokenizer
import scala.collection.immutable._
import scala.io.Codec
/**
* Scala implementation of a faster java.util.Scanner
* See: http://codeforces.com/blog/entry/7018
*/
class Scanner(reader: LineNumberReader) extends Iterable[String] with AutoCloseable {
def this(reader: BufferedReader) = this(new LineNumberReader(reader))
def this(reader: Reader) = this(new BufferedReader(reader))
def this(inputStream: InputStream)(implicit codec: Codec) = this(new InputStreamReader(inputStream, codec.charSet))
def this(path: Path)(implicit codec: Codec) = this(newBufferedReader(path, codec.charSet))
def this(file: File)(implicit codec: Codec) = this(file.toPath)(codec)
def this(str: String) = this(new StringReader(str))
override def iterator: Iterator[String] = for {
line <- Iterator.continually(reader.readLine()).takeWhile(_ != null)
tokenizer = new StringTokenizer(line)
tokens <- Iterator.continually(tokenizer).takeWhile(_.hasMoreTokens)
} yield tokens.nextToken()
private[this] var current = iterator
def hasNext: Boolean = current.hasNext
@inline def next(): String = current.next()
/**
* This is different from Java's scanner.nextLine
* The Java one is a misnomer since it actually travel to end of current line
* This one actually does fetch the next line
*/
def nextLine(): String = {
val line = reader.readLine()
current = iterator
line
}
def lineNumber: Int = reader.getLineNumber
def nextString(): String = next()
def nextBoolean(): Boolean = next().toBoolean
def nextByte(radix: Int = 10): Byte = java.lang.Byte.parseByte(next(), radix)
def nextShort(radix: Int = 10): Short = java.lang.Short.parseShort(next(), radix)
def nextInt(radix: Int = 10): Int = java.lang.Integer.parseInt(next(), radix)
def nextLong(radix: Int = 10): Long = java.lang.Long.parseLong(next(), radix)
def nextBigInt(radix: Int = 10): BigInt = BigInt(next(), radix)
def nextFloat(): Float = next().toFloat
def nextDouble(): Double = next().toDouble
def nextBigDecimal(): BigDecimal = BigDecimal(next())
override def close(): Unit = reader.close()
}
class IUnionFind(val size: Int) {
private case class Node(var parent: Option[Int], var treeSize: Int)
private val nodes = Array.fill[Node](size)(Node(None, treeSize = 1))
def union(t1: Int, t2: Int): IUnionFind = {
if (t1 == t2) return this
val root1 = root(t1)
val root2 = root(t2)
if (root1 == root2) return this
val node1 = nodes(root1)
val node2 = nodes(root2)
if (node1.treeSize < node2.treeSize) {
node1.parent = Some(t2)
node2.treeSize += node1.treeSize
} else {
node2.parent = Some(t1)
node1.treeSize += node2.treeSize
}
this
}
def connected(t1: Int, t2: Int): Boolean = t1 == t2 || root(t1) == root(t2)
def root(t: Int): Int = nodes(t).parent match {
case None => t
case Some(p) =>
nodes(t).parent = Some(root(p))
nodes(t).parent.get
}
}
object Main {
def solve(sc: => Scanner): Unit = {
val A, B, C = sc.nextLong()
println(1.0 * A * C / B)
}
implicit class implicitInt(val N: Int) {
def times[B](function: Int => B): IndexedSeq[B] = (0 until N).map(function)
}
def calc(N: Long): Long = {
if (N == 0) 0 else if (N % 9 == 0) 9 else N % 9
}
def time(s: String): Int =
s.substring(0, 2).toInt * 60 + s.substring(3, 5).toInt
def getPermutation(begin: Long = 0): Stream[Long] =
Stream.cons(begin, getPermutation(begin + 1))
def getFibonacci(prevprev: Long = 0, prev: Long = 1): Stream[Long] =
Stream.cons(prevprev, getFibonacci(prev, prevprev + prev))
var memo: Map[(Long, Long), Long] = Map[(Long, Long), Long]()
@scala.annotation.tailrec
def recursive2(X: Set[Long], Y: Stream[Long]): Long = if (X.contains(Y.head)) X.size else recursive2(X + Y.head, Y.tail)
def check(i: Int, X: String): Long = {
if (X == "") 0 else check(i, X.tail) * i + X.head.toString.toLong
}
def shift(n: Long): Long = {
if (n == 0) 0
else if (n == 1) 1
else shift(n - 1) << 1
}
def unShift(n: Long): Long = {
if (n == 0) 0
else unShift(n >> 1) + 1
}
@scala.annotation.tailrec
def gcd(i: Long, j: Long): Long = {
if (i < j) gcd(j, i)
else if (j == 0) i
else gcd(j, i % j)
}
def primeFactors(i: Long): List[Long] = primeFactors_(i, 1).sorted
def primeFactors_(i: Long, j: Long): List[Long] = {
if (j * j > i) List.empty else if (i % j == 0) primeFactors_(i, j + 1) ++ List[Long](j, i / j) else primeFactors_(i, j + 1)
}
def main(args: Array[String]): Unit = {
val sc: Scanner = new Scanner(System.in)
solve(sc)
}
}
object Util {
def getPermutation(begin: Long = 0): Stream[Long] =
Stream.cons(begin, getPermutation(begin + 1))
def getPrimeList: Stream[Long] =
getPrimeListRecursive(getPermutation(begin = 2))
private def getPrimeListRecursive(A: Stream[Long]): Stream[Long] =
Stream.cons(A.head, getPrimeListRecursive(A.tail.filter(_ % A.head != 0)))
def fib(a: Long = 0, b: Long = 1, mod: Long = Long.MaxValue): Stream[Long] = a #:: fib(b % mod, (a + b) % mod, mod)
}
object ArabicRoman {
type =?>[A, B] = PartialFunction[A, B]
private val codeTable: List[(Int, String)] = List(
(1000, "M"), (900, "CM"), (500, "D"), (400, "CD"), (100, "C"),
(90, "XC"), (50, "L"), (40, "XL"), (10, "X"), (9, "IX"), (5, "V"), (4, "IV"), (1, "I"))
val arabicToRoman: Int =?> String = {
case src if src >= 1 && src <= 3999 =>
@scala.annotation.tailrec
def convert(left: Int, cont: String = "", code: List[(Int, String)] = codeTable): String = {
val (unitVal, unitChar) = code.head
left - unitVal match {
case n if n == 0 => cont + unitChar
case n if n > 0 => convert(n, cont + unitChar, code)
case _ => convert(left, cont, code.tail)
}
}
convert(src)
}
val romanToArabic: String =?> Int = {
case src if Option(src).exists { s => {
s.nonEmpty && """[^MDCLXVI]""".r.findFirstMatchIn(s.toUpperCase).isEmpty
}
} =>
@scala.annotation.tailrec
def convert(left: String, cont: Int = 0, code: List[(Int, String)] = codeTable): Int = {
val (unitVal, unitChar) = code.head
left.splitAt(unitChar.length) match {
case ("", _) => cont
case (`unitChar`, tail) => convert(tail, cont + unitVal, code)
case _ => convert(left, cont, code.tail)
}
}
convert(src.toUpperCase())
}
}
object PowMod {
def naivePowMod(a: Long, k: Long, m: Long): Long = {
var t: Long = 1
val aMod: Long = a % m
for (_ <- 1L to k) {
t = ((t % m) * aMod) % m
}
t.toInt
}
def powMod(a: Long, k: Long, m: Long): Long = {
if (k == 0) 1
else {
val t = powMod(a, k / 2, m)
if ((k % 2) == 0) (t * t) % m else (((t * t) % m) * a) % m
}
}
}
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