結果
| 問題 |
No.852 連続部分文字列
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2021-03-10 20:18:02 |
| 言語 | Nim (2.2.0) |
| 結果 |
AC
|
| 実行時間 | 21 ms / 3,153 ms |
| コード長 | 837 bytes |
| コンパイル時間 | 4,553 ms |
| コンパイル使用メモリ | 87,816 KB |
| 実行使用メモリ | 15,764 KB |
| 最終ジャッジ日時 | 2024-10-12 10:25:58 |
| 合計ジャッジ時間 | 7,557 ms |
|
ジャッジサーバーID (参考情報) |
judge1 / judge4 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 41 |
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
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():float=
var
s = read()
n = s.len
dp = newseqwith(n,0)
occ = newseqwith(26,-1)
dp[0]=1
occ[s[0].ord-'a'.ord]=0
for i in 1..<n:
dp[i]=dp[i-1] + i - occ[s[i].ord-'a'.ord]
occ[s[i].ord-'a'.ord]=i
return 2.0*sum(dp).toFloat/(n.float*(n+1).float)
echo solve()