結果

問題 No.844 split game
ユーザー dot_haraai
提出日時 2021-06-09 23:31:27
言語 Nim
(2.2.0)
結果
AC  
実行時間 100 ms / 2,000 ms
コード長 1,391 bytes
コンパイル時間 4,583 ms
コンパイル使用メモリ 87,296 KB
実行使用メモリ 16,384 KB
最終ジャッジ日時 2024-11-29 01:05:44
合計ジャッジ時間 9,066 ms
ジャッジサーバーID
(参考情報)
judge4 / judge3
このコードへのチャレンジ
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ファイルパターン 結果
sample AC * 4
other AC * 56
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
/home/judge/data/code/Main.nim(2, 18) Warning: Use the new 'sugar' module instead; future is deprecated [Deprecated]
/home/judge/data/code/Main.nim(1, 8) Warning: imported and not used: 'times' [UnusedImport]
/home/judge/data/code/Main.nim(2, 26) Warning: imported and not used: 'strformat' [UnusedImport]
/home/judge/data/code/Main.nim(2, 18) Warning: imported and not used: 'future' [UnusedImport]
/home/judge/data/code/Main.nim(2, 37) Warning: imported and not used: 'deques' [UnusedImport]
/home/judge/data/code/Main.nim(1, 41) Warning: imported and not used: 'algorithm' [UnusedImport]
/home/judge/data/code/Main.nim(1, 52) Warning: imported and not used: 'tables' [UnusedImport]
/home/judge/data/code/Main.nim(1, 60) Warning: imported and not used: 'sets' [UnusedImport]
/home/judge/data/code/Main.nim(1, 66) Warning: imported and not used: 'lists' [UnusedImport]
/home/judge/data/code/Main.nim(1, 73) Warning: imported and not used: 'intsets' [UnusedImport]
/home/judge/data/code/Main.nim(2, 8) Warning: imported and not used: 'critbits' [UnusedImport]

ソースコード

diff #

import times, strutils, sequtils, math, algorithm, tables, sets, lists, intsets
import critbits, future, strformat, deques
template `max=`(x,y) = x = max(x,y)
template `min=`(x,y) = x = min(x,y)
template `mod=`(x,y) = x = x mod y
template scan2 = (scan(), scan())
template scan3 = (scan(), scan())
let read* = iterator: string {.closure.} =
    while true: (for s in stdin.readLine.split: yield s)
proc scan(): int = read().parseInt
proc scanf(): float = read().parseFloat
proc toInt(c:char): int =
    return int(c) - int('0')



proc solve():int=
  var
    (n,m,a)=(scan(),scan(),scan())
    lrp = newseqwith(m,(scan()-1,scan(),scan()))
    dp = newseqwith(n+1,newseqwith(2,0))
    es = newseqwith(n+1,newseq[int]())
    ps = newseqwith(n+1,newseq[int]())
  for (l,r,p) in lrp:
    es[r].add(l)
    ps[r].add(p)
  # 右端から左端をたどれるようにする
  #echo es
  #echo ps
  for r in 1..n:
    dp[r][0].max=max(dp[r-1])
    dp[r][1] = dp[r][0]-a
    for lIdx in 0..<es[r].len:
      var
        l = es[r][lIdx]
        p = ps[r][lIdx]
      if l == 0 and r == n:
        dp[r][1].max=dp[l][1]+p
      elif l == 0:
        dp[r][1].max=dp[l][1]-a+p
      elif r == n:
        dp[r][1].max=dp[l][0]-a+p
        dp[r][1].max=dp[l][1]+p
      else:
        dp[r][1].max=dp[l][0]-a-a+p
        dp[r][1].max=dp[l][1]-a+p
  #echo dp.join("\n")
  return dp[^1].max()

  
echo solve()
0