結果
問題 |
No.844 split game
|
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 |
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 |
(要ログイン)
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()