結果
| 問題 | No.844 split game |
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2021-06-01 22:15:49 |
| 言語 | Nim (2.2.0) |
| 結果 |
AC
|
| 実行時間 | 151 ms / 2,000 ms |
| コード長 | 2,038 bytes |
| 記録 | |
| コンパイル時間 | 4,472 ms |
| コンパイル使用メモリ | 88,704 KB |
| 実行使用メモリ | 17,280 KB |
| 最終ジャッジ日時 | 2024-11-09 00:19:23 |
| 合計ジャッジ時間 | 8,737 ms |
|
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 4 |
| other | AC * 56 |
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(2, 8) Warning: imported and not used: 'critbits' [UnusedImport] /home/judge/data/code/Main.nim(1, 73) Warning: imported and not used: 'intsets' [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]
ソースコード
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 solveDP():int=
var
(n,m,a)=(scan(),scan(),scan())
lrp = newseqwith(m,(scan(),scan(),scan()))
le = newseqwith(n+2,newseq[int]())
re = newseqwith(n+2,newseq[int]())
dp = newseqwith(n+2,newseqwith(2,-int.high.div(4)))
lrp = lrp.sorted()
dp[1][1]=0
for idx,(l,r,p) in lrp:
le[l].add(idx)
re[r].add(idx)
for i in 1..n+1:
#echo "i:", i
if i>1:
dp[i][0].max=max(dp[i-1][0],dp[i-1][1])
dp[i][1].max=max(dp[i-1][0],dp[i-1][1])-a
for idx in le[i]:
#echo lrp[idx]
if lrp[idx][1]==n:
dp[lrp[idx][1]+1][1].max=max(lrp[idx][2]+dp[i][1],lrp[idx][2]+dp[i][0]-a)
else:
dp[lrp[idx][1]+1][1].max=max(lrp[idx][2]+dp[i][1],lrp[idx][2]+dp[i][0]-a)-a
#echo dp.join("\n")
#echo "###"
return dp[n+1].max()
proc solve():int=
var
(n,m,a)=(scan(),scan(),scan())
lrp = newseqwith(m,(scan()-1,scan()-1,scan()))
le = newseqwith(n+1,newseq[int]())
re = newseqwith(n+1,newseq[int]())
memo = initTable[(int,int,),int]()
lrp = lrp.sorted()
for idx,(l,r,p) in lrp:
le[l].add(idx)
re[r].add(idx)
# l-1とlのあいだ、rとr+1の間に黒線が存在するケース
proc recSolve(l,r:int):int=
echo l,", ", r
if memo.hasKey((l,r)):
return memo[(l,r)]
for idx in le[l]:
if lrp[idx][1]==r:
result.max=lrp[idx][2]
#
for m in l..<r:
result.max=(-a)+(recSolve(l,m)+recSolve(m+1,r))
memo[(l,r)]=result
return recSolve(0,n-1)
echo solveDP()