結果
| 問題 |
No.807 umg tours
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2021-06-07 23:13:20 |
| 言語 | Nim (2.2.0) |
| 結果 |
AC
|
| 実行時間 | 414 ms / 4,000 ms |
| コード長 | 1,704 bytes |
| コンパイル時間 | 4,170 ms |
| コンパイル使用メモリ | 87,376 KB |
| 実行使用メモリ | 36,904 KB |
| 最終ジャッジ日時 | 2024-11-25 05:21:54 |
| 合計ジャッジ時間 | 10,323 ms |
|
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
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| ファイルパターン | 結果 |
|---|---|
| other | AC * 26 |
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()=
var
n = scan()
m = scan()
es = newseqwith(n,newseq[int]())
cs = newseqwith(n,newseq[int]())
for i in 0..<m:
var
(a,b,c) = (scan()-1,scan()-1,scan())
es[a].add(b)
es[b].add(a)
cs[a].add(c)
cs[b].add(c)
# 無視した最大重みの辺を保持してbfsは?
var
cost = newseqwith(n,newseqwith(2,int.high.div(4)))
proc bfs(s:int)=
# (コスト、頂点、チケット使用フラグ)
var q = initDeque[(int,int,int)]()
cost[s][0]=0
cost[s][1]=0
q.addLast((0,s,0))
q.addLast((0,s,1))
while q.len>0:
var
(cst,v,ticket) = q.popFirst()
if cost[v][ticket]<cst:continue
for nIdx in 0..<es[v].len:
var
nxt = es[v][nIdx]
c = cs[v][nIdx]
if cost[nxt][0] > cost[v][0]+c:
cost[nxt][0] = cost[v][0]+c
q.addLast((cost[nxt][0],nxt,0))
if cost[nxt][1] > min(cost[v][0],cost[v][1]+c):
cost[nxt][1] = min(cost[v][0],cost[v][1]+c)
q.addLast((cost[nxt][1],nxt,1))
bfs(0)
#echo cost.join("\n")
for i in 0..<n:
echo cost[i][0]+cost[i][1]
solve()