結果

問題 No.395 永遠の17歳
ユーザー GoryudyumaGoryudyuma
提出日時 2018-05-08 12:08:22
言語 Scala(Beta)
(3.4.0)
結果
AC  
実行時間 955 ms / 1,000 ms
コード長 2,407 bytes
コンパイル時間 12,192 ms
コンパイル使用メモリ 252,776 KB
実行使用メモリ 63,464 KB
最終ジャッジ日時 2023-09-12 19:01:02
合計ジャッジ時間 28,951 ms
ジャッジサーバーID
(参考情報)
judge13 / judge11
このコードへのチャレンジ
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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 AC 945 ms
62,332 KB
testcase_01 AC 955 ms
62,296 KB
testcase_02 AC 947 ms
62,416 KB
testcase_03 AC 939 ms
62,344 KB
testcase_04 AC 943 ms
62,400 KB
testcase_05 AC 938 ms
63,464 KB
testcase_06 AC 935 ms
62,500 KB
testcase_07 AC 925 ms
62,268 KB
testcase_08 AC 934 ms
62,340 KB
testcase_09 AC 944 ms
62,620 KB
testcase_10 AC 931 ms
62,772 KB
testcase_11 AC 937 ms
62,672 KB
testcase_12 AC 950 ms
62,912 KB
testcase_13 AC 938 ms
62,480 KB
testcase_14 AC 946 ms
63,356 KB
testcase_15 AC 940 ms
62,372 KB
testcase_16 AC 941 ms
62,384 KB
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ソースコード

diff #

import java.util.Scanner

import scala.collection.Searching._
import scala.annotation.tailrec
import scala.collection.mutable
import scala.collection.immutable._
import scala.io.StdIn.readLine

class IUnionFind(val size: Int) {

  private case class Node(var parent: Option[Int], var treeSize: Int)

  private val nodes = Array.fill[Node](size)(new Node(None, 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) => root(p)
  }
}

object Main {
  val m = (1 << 9) - 1

  def solve(sc: => Scanner): Unit = {
    val A = sc.nextInt - 7
    println(if (A <= 7) (-1) else (A))
  }

  def recursive(now: Int, A: Array[List[Int]]): Int = {
    if (A(now).size == 0) (now) else {
      val next = A(now).head
      A(now) = A(now).filter(_ != next)
      A(next) = A(next).filter(_ != now)
      recursive(next, A)
    }
  }

  def check(A: Array[List[Int]]): Boolean = {
    A.map(_.size == 0).fold(true)((a, b) => a & b)
  }

  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)
  }

  def calc(v: Long): Long = (v + 1) * v / 2

  def gcd(i: Long, j: Long): Long = {
    if (i < j) (gcd(j, i)) else (if (j == 0) (i) else (gcd(j, i % j)))
  }

  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)
}
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