結果

問題 No.2204 Palindrome Splitting (No Rearrangement ver.)
ユーザー yakamotoyakamoto
提出日時 2023-02-03 22:24:09
言語 Kotlin
(1.9.23)
結果
AC  
実行時間 447 ms / 2,000 ms
コード長 3,796 bytes
コンパイル時間 18,526 ms
コンパイル使用メモリ 440,396 KB
実行使用メモリ 74,564 KB
最終ジャッジ日時 2023-09-15 18:28:17
合計ジャッジ時間 30,242 ms
ジャッジサーバーID
（参考情報） 		judge11 / judge15
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 256 ms
50,516 KB
testcase_01 AC 260 ms
50,272 KB
testcase_02 AC 255 ms
50,492 KB
testcase_03 AC 349 ms
65,612 KB
testcase_04 AC 299 ms
57,628 KB
testcase_05 AC 308 ms
53,128 KB
testcase_06 AC 402 ms
74,372 KB
testcase_07 AC 419 ms
74,212 KB
testcase_08 AC 398 ms
66,108 KB
testcase_09 AC 385 ms
74,372 KB
testcase_10 AC 421 ms
74,416 KB
testcase_11 AC 400 ms
65,916 KB
testcase_12 AC 412 ms
74,268 KB
testcase_13 AC 436 ms
74,084 KB
testcase_14 AC 444 ms
74,564 KB
testcase_15 AC 391 ms
74,532 KB
testcase_16 AC 357 ms
57,892 KB
testcase_17 AC 367 ms
66,308 KB
testcase_18 AC 447 ms
74,272 KB
testcase_19 AC 400 ms
74,416 KB
testcase_20 AC 423 ms
74,136 KB
testcase_21 AC 413 ms
74,180 KB
testcase_22 AC 415 ms
74,328 KB
testcase_23 AC 412 ms
74,164 KB
testcase_24 AC 423 ms
74,124 KB
testcase_25 AC 427 ms
74,236 KB
testcase_26 AC 434 ms
74,248 KB
testcase_27 AC 382 ms
66,264 KB
testcase_28 AC 421 ms
74,212 KB
testcase_29 AC 428 ms
74,276 KB
testcase_30 AC 265 ms
50,284 KB
testcase_31 AC 264 ms
50,452 KB
testcase_32 AC 422 ms
65,944 KB
testcase_33 AC 429 ms
74,416 KB
testcase_34 AC 258 ms
50,464 KB
testcase_35 AC 437 ms
65,832 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:141:11: 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:145:11: 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:149:11: 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:153:11: 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: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<LongArray>) {
          ^
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<IntArray>) {
          ^
Main.kt:169:11: 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:186:11: 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
//val MOD = 998244353

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

  fun solve() {
    val S = ns()
    val N = S.length
    val pali = Array(N){BooleanArray(N + 1)}
    for (i in 0 until N) {
      pali[i][i] = true
      pali[i][i + 1] = true
    }
    for (len in 2 .. N) {
      for (i in 0 .. N - len) {
        if (pali[i + 1][i + len - 1]) {
          if (S[i] == S[i + len - 1]) {
            pali[i][i + len] = true
          }
        }
      }
    }
    val dp = IntArray(N + 1){-1}
    dp[0] = N
    for (i in 0 until N) {
      for (j in i + 1 .. N) {
        if (pali[i][j]) {
          val cost = min(dp[i], j - i)
          if (dp[j] == -1) {
            dp[j] = cost
          }
          else {
            dp[j] = max(dp[j], cost)
          }
        }
      }
    }
    out.println(dp[N])
  }













































  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(FileOutputStream("./out.txt"))
      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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