結果

問題 No.1512 作文
ユーザー yakamotoyakamoto
提出日時 2021-05-21 21:34:00
言語 Kotlin
(1.9.23)
結果
AC  
実行時間 769 ms / 2,000 ms
コード長 3,551 bytes
コンパイル時間 16,683 ms
コンパイル使用メモリ 465,940 KB
実行使用メモリ 94,368 KB
最終ジャッジ日時 2024-10-10 08:02:36
合計ジャッジ時間 37,053 ms
ジャッジサーバーID
（参考情報） 		judge4 / judge2
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 346 ms
60,396 KB
testcase_01 AC 353 ms
60,316 KB
testcase_02 AC 349 ms
60,424 KB
testcase_03 AC 340 ms
60,456 KB
testcase_04 AC 713 ms
78,972 KB
testcase_05 AC 769 ms
79,056 KB
testcase_06 AC 734 ms
79,052 KB
testcase_07 AC 724 ms
79,600 KB
testcase_08 AC 704 ms
79,444 KB
testcase_09 AC 421 ms
61,440 KB
testcase_10 AC 426 ms
61,576 KB
testcase_11 AC 417 ms
61,516 KB
testcase_12 AC 427 ms
61,520 KB
testcase_13 AC 426 ms
61,536 KB
testcase_14 AC 483 ms
64,104 KB
testcase_15 AC 484 ms
64,244 KB
testcase_16 AC 482 ms
64,084 KB
testcase_17 AC 480 ms
64,056 KB
testcase_18 AC 482 ms
64,072 KB
testcase_19 AC 489 ms
64,420 KB
testcase_20 AC 484 ms
64,176 KB
testcase_21 AC 327 ms
60,384 KB
testcase_22 AC 332 ms
60,472 KB
testcase_23 AC 356 ms
60,444 KB
testcase_24 AC 354 ms
60,720 KB
testcase_25 AC 343 ms
60,716 KB
testcase_26 AC 342 ms
60,216 KB
testcase_27 AC 328 ms
60,340 KB
testcase_28 AC 334 ms
60,496 KB
testcase_29 AC 328 ms
60,464 KB
testcase_30 AC 324 ms
60,596 KB
testcase_31 AC 327 ms
60,580 KB
testcase_32 AC 330 ms
60,408 KB
testcase_33 AC 323 ms
60,400 KB
testcase_34 AC 334 ms
60,592 KB
testcase_35 AC 399 ms
61,364 KB
testcase_36 AC 402 ms
61,224 KB
testcase_37 AC 400 ms
61,340 KB
testcase_38 AC 428 ms
60,872 KB
testcase_39 AC 419 ms
61,060 KB
testcase_40 AC 687 ms
94,368 KB
testcase_41 AC 529 ms
93,680 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

data class Entry(val len: Int, val s: Int, val t: Int): Comparable<Entry> {
  override fun compareTo(other: Entry): Int {
    if (s != other.s) return s.compareTo(other.s)
    return t.compareTo(other.t)
  }
}
class Solver(stream: InputStream, private val out: java.io.PrintWriter) {
  private val reader = BufferedReader(InputStreamReader(stream), 32768)

  private val N = ni()
  fun solve() {
    val E = mutableListOf<Entry>()
    for (i in 0 until N) {
      val s = ns()
      var ok = true
      for (j in 0 until s.length - 1) {
        ok = ok && s[j] <= s[j + 1]
      }
      if (!ok) continue
      E += Entry(s.length, s.first()-'a', s.last()-'a')
    }
    E.sort()
    debug{"${E.joinToString(" ")}"}
    val dp = LongArray(26)
    for (i in E.size - 1 downTo 0) {
      for (j in E[i].t until 26) {
        dp[E[i].s] = max(dp[E[i].s], dp[j] + E[i].len)
      }
    }
    out.println(dp.max())
  }













































  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())}
}

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