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 948 ms / 2,000 ms
コード長 3,296 bytes
コンパイル時間 16,260 ms
コンパイル使用メモリ 456,652 KB
実行使用メモリ 79,780 KB
最終ジャッジ日時 2024-04-22 17:12:34
合計ジャッジ時間 38,535 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 295 ms
54,224 KB
testcase_01 AC 287 ms
54,120 KB
testcase_02 AC 297 ms
54,112 KB
testcase_03 AC 291 ms
54,144 KB
testcase_04 AC 287 ms
54,092 KB
testcase_05 AC 299 ms
54,240 KB
testcase_06 AC 293 ms
54,036 KB
testcase_07 AC 294 ms
54,000 KB
testcase_08 AC 291 ms
54,032 KB
testcase_09 AC 287 ms
54,232 KB
testcase_10 AC 287 ms
54,016 KB
testcase_11 AC 287 ms
53,988 KB
testcase_12 AC 286 ms
53,976 KB
testcase_13 AC 290 ms
54,228 KB
testcase_14 AC 291 ms
54,144 KB
testcase_15 AC 289 ms
54,144 KB
testcase_16 AC 295 ms
54,064 KB
testcase_17 AC 298 ms
54,068 KB
testcase_18 AC 291 ms
54,084 KB
testcase_19 AC 286 ms
54,100 KB
testcase_20 AC 289 ms
54,128 KB
testcase_21 AC 290 ms
54,092 KB
testcase_22 AC 568 ms
73,360 KB
testcase_23 AC 439 ms
59,944 KB
testcase_24 AC 433 ms
58,864 KB
testcase_25 AC 528 ms
74,076 KB
testcase_26 AC 526 ms
76,860 KB
testcase_27 AC 510 ms
75,112 KB
testcase_28 AC 542 ms
77,616 KB
testcase_29 AC 465 ms
62,572 KB
testcase_30 AC 456 ms
60,824 KB
testcase_31 AC 530 ms
77,268 KB
testcase_32 AC 446 ms
62,124 KB
testcase_33 AC 374 ms
55,312 KB
testcase_34 AC 457 ms
63,308 KB
testcase_35 AC 530 ms
76,152 KB
testcase_36 AC 750 ms
73,100 KB
testcase_37 AC 479 ms
58,536 KB
testcase_38 AC 901 ms
79,760 KB
testcase_39 AC 368 ms
55,296 KB
testcase_40 AC 795 ms
75,952 KB
testcase_41 AC 554 ms
63,496 KB
testcase_42 AC 580 ms
64,960 KB
testcase_43 AC 385 ms
55,696 KB
testcase_44 AC 474 ms
58,196 KB
testcase_45 AC 838 ms
79,604 KB
testcase_46 AC 825 ms
79,780 KB
testcase_47 AC 948 ms
79,696 KB
testcase_48 AC 892 ms
79,432 KB
testcase_49 AC 850 ms
79,640 KB
testcase_50 AC 279 ms
54,084 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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