結果

問題 No.1583 Building Blocks
ユーザー yakamotoyakamoto
提出日時 2021-07-03 14:25:43
言語 Kotlin
(1.9.23)
結果
AC  
実行時間 381 ms / 2,000 ms
コード長 3,390 bytes
コンパイル時間 17,429 ms
コンパイル使用メモリ 462,144 KB
実行使用メモリ 60,408 KB
最終ジャッジ日時 2024-09-14 02:52:39
合計ジャッジ時間 34,885 ms
ジャッジサーバーID
（参考情報） 		judge6 / 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 320 ms
60,132 KB
testcase_01 AC 322 ms
60,192 KB
testcase_02 AC 326 ms
60,136 KB
testcase_03 AC 353 ms
60,104 KB
testcase_04 AC 337 ms
60,120 KB
testcase_05 AC 323 ms
60,200 KB
testcase_06 AC 350 ms
60,400 KB
testcase_07 AC 352 ms
60,360 KB
testcase_08 AC 326 ms
60,076 KB
testcase_09 AC 374 ms
60,196 KB
testcase_10 AC 326 ms
60,212 KB
testcase_11 AC 331 ms
60,036 KB
testcase_12 AC 358 ms
60,148 KB
testcase_13 AC 354 ms
60,252 KB
testcase_14 AC 348 ms
60,136 KB
testcase_15 AC 357 ms
60,380 KB
testcase_16 AC 350 ms
60,380 KB
testcase_17 AC 354 ms
60,280 KB
testcase_18 AC 339 ms
60,168 KB
testcase_19 AC 381 ms
60,240 KB
testcase_20 AC 364 ms
60,084 KB
testcase_21 AC 371 ms
60,120 KB
testcase_22 AC 370 ms
60,136 KB
testcase_23 AC 334 ms
60,108 KB
testcase_24 AC 359 ms
60,332 KB
testcase_25 AC 327 ms
60,296 KB
testcase_26 AC 362 ms
60,320 KB
testcase_27 AC 367 ms
60,256 KB
testcase_28 AC 358 ms
60,324 KB
testcase_29 AC 341 ms
60,176 KB
testcase_30 AC 330 ms
60,216 KB
testcase_31 AC 359 ms
60,408 KB
testcase_32 AC 364 ms
60,192 KB
testcase_33 AC 353 ms
60,236 KB
testcase_34 AC 325 ms
60,024 KB
testcase_35 AC 354 ms
60,320 KB
testcase_36 AC 355 ms
60,112 KB
testcase_37 AC 337 ms
60,064 KB
testcase_38 AC 322 ms
60,204 KB
testcase_39 AC 322 ms
60,160 KB
testcase_40 AC 326 ms
60,328 KB
testcase_41 AC 319 ms
60,176 KB
testcase_42 AC 319 ms
60,256 KB
testcase_43 AC 320 ms
60,192 KB
testcase_44 AC 319 ms
59,992 KB
testcase_45 AC 317 ms
60,192 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:13:26: warning: the corresponding parameter in the supertype 'Comparable' is named 'other'. This may cause problems when calling this function with named arguments.
  override fun compareTo(o: Block): Int = (w + s).compareTo(o.w + o.s)
                         ^
Main.kt:128:11: 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:132:11: 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:136:11: 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:140:11: 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:142:11: 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:149:11: 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:156:11: 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:173:11: warning: expected performance impact from inlining is insignificant. Inlining works best for functions with parameters of functional types
  private inlin

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 Block(val w: Int, val s: Int): Comparable<Block> {
  override fun compareTo(o: Block): Int = (w + s).compareTo(o.w + o.s)
}
class Solver(stream: InputStream, private val out: java.io.PrintWriter) {
  private val reader = BufferedReader(InputStreamReader(stream), 32768)

  fun solve() {
    val N = ni()
    val B = Array(N){Block(ni(), ni())}
    B.sort()

    val inf = 1e18.toLong() + 100
    val dp = LongArray(N + 1){inf}
    dp[0] = 0
    for (i in 0 until N) {
      for (j in i + 1 downTo 1) {
        if (dp[j - 1] == inf) continue
        if (B[i].s < dp[j - 1]) continue
        dp[j] = min(dp[j], dp[j - 1] + B[i].w)
      }
    }
    debug(dp)
    val ans = (1 .. N).filter { dp[it] != inf }.maxOrNull()
    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())}
}

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