結果
| 問題 |
No.995 タピオカオイシクナーレ
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2021-06-02 15:22:35 |
| 言語 | Nim (2.2.0) |
| 結果 |
AC
|
| 実行時間 | 74 ms / 2,000 ms |
| コード長 | 1,716 bytes |
| コンパイル時間 | 5,902 ms |
| コンパイル使用メモリ | 86,272 KB |
| 実行使用メモリ | 5,248 KB |
| 最終ジャッジ日時 | 2024-11-15 07:40:54 |
| 合計ジャッジ時間 | 7,616 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
(要ログイン)
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 23 |
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(2, 37) Warning: imported and not used: 'deques' [UnusedImport] /home/judge/data/code/Main.nim(2, 18) Warning: imported and not used: 'future' [UnusedImport] /home/judge/data/code/Main.nim(1, 66) Warning: imported and not used: 'lists' [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(2, 26) Warning: imported and not used: 'strformat' [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)+y).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 xgcd(a,b:int):(int,int,int)=
var
b = b
x0=1
y0=0
x1=0
y1=1
q:int
a = a
while b!=0:
(q,a,b) = (a.div(b),b,a.mod(b))
(x0,x1)=(x1,x0-q*x1)
(y0,y1)=(y1,y0-q*y1)
return (a,x0,y0)
# modの逆元
proc modinv(a,m:int):int=
var (g,x,y)=xgcd(a,m)
if g!=1:
return -1
else:
return x mod m
# modPow
# 無いので作る
# なんか畳み込んで上手いことやるやつ
proc modPow(x,b,m:int):int=
if x == 0:
return 0
#echo x,", ",b
if b == 1:
return x
return (modPow((x^2) mod m, b div 2, m) * x^(b mod 2)) mod m
proc solve():int=
var
n = scan()
m = scan()
k = scan()
p = scan()
q = scan()
b = newseqwith(n,scan())
md = 10^9+7
(p,q) = (p.div(gcd(p,q)),q.div(gcd(p,q)))
var
multi = (modPow((q-2*p).mod(md),k,md)*modInv(modPow(q,k,md),md)).mod(md)
for i in 0..<n:
if i<m: #b1==1/2
var
t = ((multi*modinv(2,md)+modinv(2,md)).mod(md)*b[i]).mod(md)
result+=t
else:
var
t = ((multi*modinv(md-2,md)+modinv(2,md)).mod(md)*b[i]).mod(md)
result+=t
result.mod=md
#echo "multi:", multi
echo solve()