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 598 ms / 1,000 ms
コード長 3,003 bytes
コンパイル時間 12,402 ms
コンパイル使用メモリ 430,812 KB
実行使用メモリ 67,100 KB
最終ジャッジ日時 2023-08-08 22:58:30
合計ジャッジ時間 40,037 ms
ジャッジサーバーID
（参考情報） 		judge15 / judge13
このコードへのチャレンジ（β）

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 268 ms
53,776 KB
testcase_01 AC 252 ms
53,716 KB
testcase_02 AC 234 ms
53,632 KB
testcase_03 AC 471 ms
59,748 KB
testcase_04 AC 505 ms
62,292 KB
testcase_05 AC 345 ms
57,420 KB
testcase_06 AC 341 ms
57,508 KB
testcase_07 AC 452 ms
60,008 KB
testcase_08 AC 497 ms
60,564 KB
testcase_09 AC 445 ms
60,388 KB
testcase_10 AC 388 ms
57,548 KB
testcase_11 AC 426 ms
58,044 KB
testcase_12 AC 436 ms
57,764 KB
testcase_13 AC 375 ms
57,492 KB
testcase_14 AC 375 ms
57,324 KB
testcase_15 AC 394 ms
57,572 KB
testcase_16 AC 506 ms
60,388 KB
testcase_17 AC 450 ms
57,500 KB
testcase_18 AC 470 ms
59,500 KB
testcase_19 AC 392 ms
57,400 KB
testcase_20 AC 524 ms
62,488 KB
testcase_21 AC 494 ms
62,288 KB
testcase_22 AC 462 ms
59,808 KB
testcase_23 AC 503 ms
59,808 KB
testcase_24 AC 507 ms
62,172 KB
testcase_25 AC 414 ms
57,512 KB
testcase_26 AC 545 ms
62,296 KB
testcase_27 AC 553 ms
60,188 KB
testcase_28 AC 562 ms
66,796 KB
testcase_29 AC 555 ms
66,336 KB
testcase_30 AC 566 ms
66,056 KB
testcase_31 AC 582 ms
66,288 KB
testcase_32 AC 567 ms
66,540 KB
testcase_33 AC 556 ms
66,532 KB
testcase_34 AC 570 ms
66,608 KB
testcase_35 AC 576 ms
66,964 KB
testcase_36 AC 551 ms
66,768 KB
testcase_37 AC 558 ms
66,900 KB
testcase_38 AC 595 ms
67,056 KB
testcase_39 AC 598 ms
66,580 KB
testcase_40 AC 573 ms
66,632 KB
testcase_41 AC 550 ms
67,100 KB
testcase_42 AC 563 ms
66,576 KB
testcase_43 AC 562 ms
66,564 KB
testcase_44 AC 557 ms
66,760 KB
testcase_45 AC 559 ms
66,176 KB
testcase_46 AC 557 ms
66,604 KB
testcase_47 AC 588 ms
66,716 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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