結果

問題 No.1644 Eight Digits
ユーザー yakamotoyakamoto
提出日時 2021-08-13 21:28:27
言語 Kotlin
(1.9.23)
結果
AC  
実行時間 328 ms / 1,000 ms
コード長 3,646 bytes
コンパイル時間 16,282 ms
コンパイル使用メモリ 464,704 KB
実行使用メモリ 54,796 KB
最終ジャッジ日時 2024-10-03 17:12:04
合計ジャッジ時間 26,652 ms
ジャッジサーバーID
（参考情報） 		judge5 / judge4
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 309 ms
54,676 KB
testcase_01 AC 310 ms
54,640 KB
testcase_02 AC 307 ms
54,524 KB
testcase_03 AC 319 ms
54,568 KB
testcase_04 AC 315 ms
54,536 KB
testcase_05 AC 308 ms
54,564 KB
testcase_06 AC 319 ms
54,796 KB
testcase_07 AC 312 ms
54,648 KB
testcase_08 AC 310 ms
54,524 KB
testcase_09 AC 321 ms
54,756 KB
testcase_10 AC 316 ms
54,656 KB
testcase_11 AC 321 ms
54,628 KB
testcase_12 AC 318 ms
54,700 KB
testcase_13 AC 322 ms
54,572 KB
testcase_14 AC 325 ms
54,700 KB
testcase_15 AC 317 ms
54,600 KB
testcase_16 AC 325 ms
54,664 KB
testcase_17 AC 328 ms
54,540 KB
testcase_18 AC 314 ms
54,652 KB
testcase_19 AC 322 ms
54,632 KB
testcase_20 AC 326 ms
54,720 KB
testcase_21 AC 323 ms
54,700 KB
testcase_22 AC 325 ms
54,676 KB
testcase_23 AC 318 ms
54,668 KB
testcase_24 AC 316 ms
54,532 KB
testcase_25 AC 314 ms
54,604 KB
testcase_26 AC 314 ms
54,640 KB
testcase_27 AC 313 ms
54,624 KB
権限があれば一括ダウンロードができます
コンパイルメッセージ
Main.kt:147:11: warning: expected performance impact from inlining is insignificant. Inlining works best for functions with parameters of functional types
  private inline fun debug(a: LongArray) {
          ^
Main.kt:151:11: warning: expected performance impact from inlining is insignificant. Inlining works best for functions with parameters of functional types
  private inline fun debug(a: IntArray) {
          ^
Main.kt:155:11: warning: expected performance impact from inlining is insignificant. Inlining works best for functions with parameters of functional types
  private inline fun debug(a: BooleanArray) {
          ^
Main.kt:159:11: warning: expected performance impact from inlining is insignificant. Inlining works best for functions with parameters of functional types
  private inline fun toString(a: BooleanArray) = run{a.map { if (it) 1 else 0 }.joinToString("")}
          ^
Main.kt:161:11: warning: expected performance impact from inlining is insignificant. Inlining works best for functions with parameters of functional types
  private inline fun debugDim(A: Array<LongArray>) {
          ^
Main.kt:168:11: warning: expected performance impact from inlining is insignificant. Inlining works best for functions with parameters of functional types
  private inline fun debugDim(A: Array<IntArray>) {
          ^
Main.kt:175:11: warning: expected performance impact from inlining is insignificant. Inlining works best for functions with parameters of functional types
  private inline fun debugDim(A: Array<BooleanArray>) {
          ^
Main.kt:192:11: warning: expected performance impact from inlining is insignificant. Inlining works best for functions with parameters of functional types
  private inline fun assert(b: Boolean) = run{if (!b) throw AssertionError()}
          ^

ソースコード

diff # 

import java.io.BufferedReader
import java.io.InputStream
import java.io.InputStreamReader
import java.lang.AssertionError
import java.util.*
import kotlin.math.abs
import kotlin.math.max
import kotlin.math.min

val MOD = 1_000_000_007

fun permutation(N: Int, f: (IntArray) -> Unit) {
  val A = IntArray(N){it}
  fun swap(i: Int, j: Int) {
    val tmp = A[i]
    A[i] = A[j]
    A[j] = tmp
  }

  fun step(n: Int) {
    when(n) {
      1 -> f(A)
      else -> {
        for (i in 0 until n) {
          step(n - 1)
          if (n % 2 == 0) {
            swap(i, n - 1)
          } else {
            swap(0, n - 1)
          }
        }
      }
    }
  }

  step(N)
}

class Solver(stream: InputStream, private val out: java.io.PrintWriter) {
  private val reader = BufferedReader(InputStreamReader(stream), 32768)

  fun solve() {
    val K = ni()
    var ans = 0
    permutation(8) { A ->
      var a = 0
      var ten = 1
      for (i in A.indices) {
        a += (A[i] + 1) * ten
        ten *= 10
      }
      if (a % K == 0) ans++
    }
    out.println(ans)
  }













































  private val isDebug = try {
    // なんか本番でエラーでる
    System.getenv("MY_DEBUG") != null
  } catch (t: Throwable) {
    false
  }

  private var tokenizer: StringTokenizer? = null
  private fun next(): String {
    while (tokenizer == null || !tokenizer!!.hasMoreTokens()) {
      tokenizer = StringTokenizer(reader.readLine())
    }
    return tokenizer!!.nextToken()
  }

  private fun ni() = next().toInt()
  private fun nl() = next().toLong()
  private fun ns() = next()
  private fun na(n: Int, offset: Int = 0): IntArray {
    return IntArray(n) { ni() + offset }
  }
  private fun nal(n: Int, offset: Int = 0): LongArray {
    val res = LongArray(n)
    for (i in 0 until n) {
      res[i] = nl() + offset
    }
    return res
  }

  private fun na2(n: Int, offset: Int = 0): Array<IntArray> {
    val a  = Array(2){IntArray(n)}
    for (i in 0 until n) {
      for (e in a) {
        e[i] = ni() + offset
      }
    }
    return a
  }

  private inline fun debug(msg: () -> String) {
    if (isDebug) System.err.println(msg())
  }

  /**
   * コーナーケースでエラー出たりするので、debug(dp[1])のように添え字付きの場合はdebug{}をつかうこと
   */
  private inline fun debug(a: LongArray) {
    debug { a.joinToString(" ") }
  }

  private inline fun debug(a: IntArray) {
    debug { a.joinToString(" ") }
  }

  private inline fun debug(a: BooleanArray) {
    debug { toString(a) }
  }

  private inline fun toString(a: BooleanArray) = run{a.map { if (it) 1 else 0 }.joinToString("")}

  private inline fun debugDim(A: Array<LongArray>) {
    if (isDebug) {
      for (a in A) {
        debug(a)
      }
    }
  }
  private inline fun debugDim(A: Array<IntArray>) {
    if (isDebug) {
      for (a in A) {
        debug(a)
      }
    }
  }
  private inline fun debugDim(A: Array<BooleanArray>) {
    if (isDebug) {
      for (a in A) {
        debug(a)
      }
    }
  }

  /**
   * 勝手にimport消されるのを防ぎたい
   */
  private fun hoge() {
    min(1, 2)
    max(1, 2)
    abs(-10)
  }

  private inline fun assert(b: Boolean) = run{if (!b) throw AssertionError()}
  private inline fun assert(b: Boolean, f: () -> String) = run{if (!b) throw AssertionError(f())}

  companion object {
    // TestRunnerから呼びたいので単純なmainじゃだめ
    fun main() {
      val out = java.io.PrintWriter(System.out)
      Solver(System.`in`, out).solve()
      out.flush()
    }
  }
}

/**
 * judgeから呼ばれる
 */
fun main() = Solver.main()
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