結果

問題 No.1702 count good string
ユーザー yakamotoyakamoto
提出日時 2021-10-08 22:37:42
言語 Kotlin
(1.9.23)
結果
AC  
実行時間 392 ms / 2,000 ms
コード長 3,588 bytes
コンパイル時間 17,883 ms
コンパイル使用メモリ 453,852 KB
実行使用メモリ 52,244 KB
最終ジャッジ日時 2024-07-23 05:40:07
合計ジャッジ時間 35,499 ms
ジャッジサーバーID
（参考情報） 		judge1 / 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 304 ms
51,016 KB
testcase_01 AC 314 ms
50,944 KB
testcase_02 AC 309 ms
51,196 KB
testcase_03 AC 306 ms
51,136 KB
testcase_04 AC 308 ms
51,384 KB
testcase_05 AC 309 ms
51,304 KB
testcase_06 AC 308 ms
51,296 KB
testcase_07 AC 305 ms
51,144 KB
testcase_08 AC 306 ms
50,936 KB
testcase_09 AC 309 ms
51,056 KB
testcase_10 AC 308 ms
51,044 KB
testcase_11 AC 309 ms
51,228 KB
testcase_12 AC 307 ms
51,276 KB
testcase_13 AC 373 ms
52,036 KB
testcase_14 AC 392 ms
51,940 KB
testcase_15 AC 374 ms
51,972 KB
testcase_16 AC 366 ms
51,712 KB
testcase_17 AC 356 ms
51,692 KB
testcase_18 AC 370 ms
52,084 KB
testcase_19 AC 370 ms
51,864 KB
testcase_20 AC 364 ms
52,056 KB
testcase_21 AC 359 ms
51,952 KB
testcase_22 AC 367 ms
51,712 KB
testcase_23 AC 305 ms
50,960 KB
testcase_24 AC 312 ms
51,380 KB
testcase_25 AC 309 ms
51,108 KB
testcase_26 AC 306 ms
51,268 KB
testcase_27 AC 310 ms
51,108 KB
testcase_28 AC 308 ms
51,056 KB
testcase_29 AC 303 ms
51,076 KB
testcase_30 AC 311 ms
51,292 KB
testcase_31 AC 312 ms
51,224 KB
testcase_32 AC 308 ms
51,388 KB
testcase_33 AC 373 ms
51,740 KB
testcase_34 AC 364 ms
51,880 KB
testcase_35 AC 364 ms
51,668 KB
testcase_36 AC 382 ms
52,244 KB
testcase_37 AC 380 ms
51,972 KB
testcase_38 AC 383 ms
52,116 KB
testcase_39 AC 363 ms
51,856 KB
testcase_40 AC 389 ms
52,108 KB
testcase_41 AC 367 ms
51,848 KB
testcase_42 AC 384 ms
51,964 KB
testcase_43 AC 360 ms
51,668 KB
testcase_44 AC 369 ms
51,968 KB
testcase_45 AC 306 ms
51,088 KB
testcase_46 AC 312 ms
51,232 KB
testcase_47 AC 305 ms
51,084 KB
testcase_48 AC 307 ms
51,036 KB
testcase_49 AC 306 ms
51,092 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:31:14: warning: name shadowed: idx
        for (idx in 9 downTo 1) {
             ^
Main.kt:130:11: 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: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: IntArray) {
          ^
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: BooleanArray) {
          ^
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 toString(a: BooleanArray) = run{a.map { if (it) 1 else 0 }.joinToString("")}
          ^
Main.kt:144:11: 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:151:11: 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:158:11: 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:175:11: 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)

  fun solve() {
    val N = ni()
    val S = ns()

    val dp = Array(2){LongArray(10)}
    dp[0][0] = 1
    val YUKICODER = "yukicoder"
    for (i in 0 until N) {
      val idx = YUKICODER.indexOf(S[i])
      if (S[i] != '?' && idx == -1) continue // 含めれない

      if (S[i] != '?') {
        dp[0][idx + 1] = (dp[0][idx + 1] + dp[0][idx + 0]) % MOD
        dp[1][idx + 1] = (dp[1][idx + 1] + dp[1][idx + 0]) % MOD
      }
      else {
        for (idx in 9 downTo 1) {
          dp[1][idx] = (dp[1][idx] + dp[0][idx - 1]) % MOD
        }
      }
    }
    val ans = (dp[0][9] + dp[1][9]) % MOD
    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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