結果

問題 No.1199 お菓子配り-2
ユーザー yakamotoyakamoto
提出日時 2020-08-28 23:14:43
言語 Kotlin
(1.9.23)
結果
AC  
実行時間 786 ms / 1,000 ms
コード長 3,003 bytes
コンパイル時間 16,560 ms
コンパイル使用メモリ 451,020 KB
実行使用メモリ 93,904 KB
最終ジャッジ日時 2024-04-26 15:09:06
合計ジャッジ時間 50,516 ms
ジャッジサーバーID
（参考情報） 		judge1 / judge4
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 292 ms
53,284 KB
testcase_01 AC 293 ms
53,308 KB
testcase_02 AC 284 ms
53,060 KB
testcase_03 AC 558 ms
73,660 KB
testcase_04 AC 786 ms
86,716 KB
testcase_05 AC 413 ms
56,404 KB
testcase_06 AC 420 ms
57,188 KB
testcase_07 AC 629 ms
78,436 KB
testcase_08 AC 652 ms
86,804 KB
testcase_09 AC 567 ms
74,608 KB
testcase_10 AC 465 ms
59,444 KB
testcase_11 AC 524 ms
69,408 KB
testcase_12 AC 531 ms
69,628 KB
testcase_13 AC 480 ms
59,800 KB
testcase_14 AC 427 ms
58,824 KB
testcase_15 AC 435 ms
57,704 KB
testcase_16 AC 635 ms
86,360 KB
testcase_17 AC 555 ms
69,152 KB
testcase_18 AC 659 ms
86,316 KB
testcase_19 AC 490 ms
62,856 KB
testcase_20 AC 733 ms
87,328 KB
testcase_21 AC 609 ms
86,264 KB
testcase_22 AC 597 ms
73,048 KB
testcase_23 AC 628 ms
84,584 KB
testcase_24 AC 583 ms
86,488 KB
testcase_25 AC 475 ms
59,912 KB
testcase_26 AC 670 ms
86,548 KB
testcase_27 AC 648 ms
86,608 KB
testcase_28 AC 745 ms
93,736 KB
testcase_29 AC 674 ms
93,904 KB
testcase_30 AC 665 ms
93,368 KB
testcase_31 AC 672 ms
93,380 KB
testcase_32 AC 662 ms
93,616 KB
testcase_33 AC 685 ms
93,728 KB
testcase_34 AC 669 ms
93,716 KB
testcase_35 AC 679 ms
93,532 KB
testcase_36 AC 661 ms
93,432 KB
testcase_37 AC 754 ms
93,552 KB
testcase_38 AC 731 ms
93,804 KB
testcase_39 AC 714 ms
93,484 KB
testcase_40 AC 721 ms
93,760 KB
testcase_41 AC 719 ms
93,880 KB
testcase_42 AC 708 ms
93,660 KB
testcase_43 AC 728 ms
93,320 KB
testcase_44 AC 722 ms
93,640 KB
testcase_45 AC 691 ms
93,540 KB
testcase_46 AC 687 ms
93,636 KB
testcase_47 AC 674 ms
93,328 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:131:11: 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:135:11: 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:139:11: 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:143:11: 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:150:11: 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:167:11: 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 M = ni()
    val mat = Array(N){nal(M)}

    val INF = -1e18.toLong()

    val dp = Array(2){LongArray(N + 1){INF} }
    dp[0][0] = 0
    for (i in 0 until N) {
      for (x in 0 until 2) {
        if (dp[x][i] == INF) continue
        var sum = mat[i].sum()
        if (x == 1) sum *= -1
        dp[x][i + 1] = max(dp[x][i + 1], dp[x][i])
        dp[x xor 1][i + 1] = max(dp[x xor 1][i + 1], dp[x][i] + sum)
      }
    }

    out.println(max(dp[0][N], dp[1][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 map(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 map(n: Int, f: (Int) -> Int): IntArray {
    val res = IntArray(n)
    for (i in 0 until n) {
      res[i] = f(i)
    }
    return res
  }

  private inline fun debug(msg: () -> String) {
    if (isDebug) System.err.println(msg())
  }

  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 { 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)
      }
    }
  }

  /**
   * 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()}
}

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