結果

問題 No.1425 Yet Another Cyclic Shifts Sorting
ユーザー yakamotoyakamoto
提出日時 2021-03-12 22:25:07
言語 Kotlin
(1.9.23)
結果
AC  
実行時間 913 ms / 2,000 ms
コード長 3,296 bytes
コンパイル時間 14,123 ms
コンパイル使用メモリ 456,924 KB
実行使用メモリ 79,820 KB
最終ジャッジ日時 2024-10-14 16:21:41
合計ジャッジ時間 38,683 ms
ジャッジサーバーID
（参考情報） 		judge4 / judge3
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 288 ms
53,720 KB
testcase_01 AC 284 ms
53,812 KB
testcase_02 AC 286 ms
53,812 KB
testcase_03 AC 279 ms
53,816 KB
testcase_04 AC 291 ms
53,868 KB
testcase_05 AC 296 ms
53,700 KB
testcase_06 AC 285 ms
53,836 KB
testcase_07 AC 285 ms
53,644 KB
testcase_08 AC 285 ms
53,560 KB
testcase_09 AC 285 ms
53,912 KB
testcase_10 AC 289 ms
53,796 KB
testcase_11 AC 288 ms
53,612 KB
testcase_12 AC 278 ms
53,752 KB
testcase_13 AC 286 ms
53,676 KB
testcase_14 AC 289 ms
53,784 KB
testcase_15 AC 280 ms
53,664 KB
testcase_16 AC 289 ms
53,904 KB
testcase_17 AC 286 ms
53,928 KB
testcase_18 AC 293 ms
53,576 KB
testcase_19 AC 277 ms
53,868 KB
testcase_20 AC 284 ms
53,888 KB
testcase_21 AC 282 ms
53,788 KB
testcase_22 AC 563 ms
73,168 KB
testcase_23 AC 411 ms
58,980 KB
testcase_24 AC 426 ms
58,380 KB
testcase_25 AC 483 ms
73,964 KB
testcase_26 AC 490 ms
76,616 KB
testcase_27 AC 562 ms
74,644 KB
testcase_28 AC 533 ms
77,392 KB
testcase_29 AC 465 ms
62,832 KB
testcase_30 AC 422 ms
59,560 KB
testcase_31 AC 511 ms
77,392 KB
testcase_32 AC 454 ms
62,404 KB
testcase_33 AC 358 ms
55,152 KB
testcase_34 AC 456 ms
62,836 KB
testcase_35 AC 524 ms
76,040 KB
testcase_36 AC 684 ms
72,308 KB
testcase_37 AC 461 ms
58,172 KB
testcase_38 AC 856 ms
79,448 KB
testcase_39 AC 355 ms
55,260 KB
testcase_40 AC 817 ms
75,668 KB
testcase_41 AC 537 ms
63,276 KB
testcase_42 AC 567 ms
65,252 KB
testcase_43 AC 386 ms
55,600 KB
testcase_44 AC 468 ms
58,156 KB
testcase_45 AC 901 ms
79,820 KB
testcase_46 AC 913 ms
79,396 KB
testcase_47 AC 896 ms
79,320 KB
testcase_48 AC 849 ms
79,260 KB
testcase_49 AC 850 ms
79,564 KB
testcase_50 AC 300 ms
53,816 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:134:11: 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:138:11: 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:142:11: 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:146:11: 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:148:11: 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:155:11: 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:162:11: 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:179:11: 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
class Solver(stream: InputStream, private val out: java.io.PrintWriter) {
  private val reader = BufferedReader(InputStreamReader(stream), 32768)

  private val N = ni()
  fun solve() {
    out.println(solve2())
  }
  fun solve2(): Int {
    val A = na(N).toList()
    val sorted = A.sorted()
    if (A == sorted) return 0

    val same = BooleanArray(N + 1)
    same[N] = true
    for (i in 0 until N) {
      same[i] = A[i] == sorted[i]
    }
    for (i in N - 2 downTo 0) {
      same[i] = same[i] && same[i + 1]
    }

    debug(same)

    var cnt = 0
    for (i in 1 until N) {
      if (A[i-1] <= A[i]) cnt++
      val cnt2 = cnt + (if(A[i] <= A[0]) 1 else 0)
      debug{"$i $cnt2"}
      if (same[i + 1] && cnt2 >= i) return 1
    }
    return 2
  }













































  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()}
}

fun main() {
  val out = java.io.PrintWriter(System.out)
  Solver(System.`in`, out).solve()
  out.flush()
}
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