結果

問題 No.1650 Moving Coins
ユーザー yakamotoyakamoto
提出日時 2021-08-20 21:58:34
言語 Kotlin
(1.9.23)
結果
AC  
実行時間 950 ms / 2,000 ms
コード長 3,785 bytes
コンパイル時間 20,267 ms
コンパイル使用メモリ 455,728 KB
実行使用メモリ 101,720 KB
最終ジャッジ日時 2024-04-22 04:32:21
合計ジャッジ時間 40,702 ms
ジャッジサーバーID
（参考情報） 		judge4 / judge5
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 293 ms
50,152 KB
testcase_01 AC 290 ms
50,100 KB
testcase_02 AC 290 ms
49,856 KB
testcase_03 AC 533 ms
74,224 KB
testcase_04 AC 503 ms
67,932 KB
testcase_05 AC 504 ms
71,332 KB
testcase_06 AC 509 ms
72,704 KB
testcase_07 AC 558 ms
84,504 KB
testcase_08 AC 765 ms
88,692 KB
testcase_09 AC 791 ms
88,804 KB
testcase_10 AC 762 ms
89,204 KB
testcase_11 AC 778 ms
88,908 KB
testcase_12 AC 740 ms
88,332 KB
testcase_13 AC 747 ms
88,460 KB
testcase_14 AC 774 ms
88,676 KB
testcase_15 AC 691 ms
88,328 KB
testcase_16 AC 795 ms
88,964 KB
testcase_17 AC 775 ms
88,780 KB
testcase_18 AC 787 ms
88,532 KB
testcase_19 AC 950 ms
101,720 KB
testcase_20 AC 876 ms
91,740 KB
testcase_21 AC 905 ms
95,804 KB
testcase_22 AC 848 ms
86,968 KB
testcase_23 AC 862 ms
87,164 KB
testcase_24 AC 525 ms
72,908 KB
testcase_25 AC 536 ms
76,576 KB
testcase_26 AC 578 ms
84,852 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:152:11: 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:156:11: 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:160:11: 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:164:11: 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:166:11: 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:173:11: 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:180:11: 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:197:11: 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 Ans(val i: Int, val dir: Char)
class Solver(stream: InputStream, private val out: java.io.PrintWriter) {
  private val reader = BufferedReader(InputStreamReader(stream), 32768)

  fun solve() {
    val N = ni()
    val A = na(N, -1)
    val B = na(N, -1)
    val wait = mutableListOf<Int>()
    val ans = mutableListOf<Ans>()

    fun moveL(i: Int) {
      val dist = A[i] - B[i]
      for (cnt in 0 until dist) {
        ans += Ans(i, 'L')
      }
    }

    fun moveR(i: Int) {
      val dist = B[i] - A[i]
      for (cnt in 0 until dist) {
        ans += Ans(i, 'R')
      }
    }

    fun consume() {
      for (i in wait.size - 1 downTo 0) {
        moveR(wait[i])
      }

      wait.clear()
    }

    for (i in 0 until N) {
      if (B[i] - A[i] > 0) {
        wait += i
      }
      else {
        moveL(i)
        consume()
      }
    }
    consume()

    out.println(ans.size)
    for (i in ans) {
      out.println("${i.i + 1} ${i.dir}")
    }
  }













































  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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