結果
| 問題 | No.390 最長の数列 | 
| コンテスト | |
| ユーザー |  | 
| 提出日時 | 2021-05-29 13:14:00 | 
| 言語 | Nim (2.2.0) | 
| 結果 | 
                                AC
                                 
                             | 
| 実行時間 | 93 ms / 5,000 ms | 
| コード長 | 1,360 bytes | 
| コンパイル時間 | 3,661 ms | 
| コンパイル使用メモリ | 87,896 KB | 
| 実行使用メモリ | 14,176 KB | 
| 最終ジャッジ日時 | 2024-11-07 21:21:31 | 
| 合計ジャッジ時間 | 5,146 ms | 
| ジャッジサーバーID (参考情報) | judge4 / judge1 | 
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| ファイルパターン | 結果 | 
|---|---|
| sample | AC * 4 | 
| other | AC * 15 | 
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, 8) Warning: imported and not used: 'critbits' [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]
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 solve():int=
  var
    n = scan()
    mx = 10^6
    v = newseqwith(mx+1,false)
    dpt = newseqwith(mx+1,0)
    add1 = false
  for i in 0..<n:
    v[scan()] = true
  if v[1] == false:
    v[1]=true
    add1 = true
  
  proc bfs(s:int)=
    var
      # 一回素朴なBFS
      # (p,cost)
      q = initDeque[(int,int)]()
    q.addLast((s,1))
    while q.len>0:
      var (p,cost) = q.popFirst()
      if dpt[p] > cost:continue
      dpt[p] = cost
      var m = 2
      while p*m <= mx:
        if v[p*m]:
          q.addLast((p*m,cost+1))
          break
        m+=1
  #bfs(1)
  dpt[1]=1
  for i in 1..mx:
    var m = 2
    if v[i]:
      while i*m<=mx:
        if v[i*m]:
          dpt[i*m].max=dpt[i]+1
        m+=1
  #echo dpt[0..12]
  if add1:
    return dpt.max()-1
  else:
    return dpt.max()
  
  
echo solve()
            
            
            
        