結果

問題 No.2565 はじめてのおつかい
ユーザー chaemonchaemon
提出日時 2023-12-02 15:57:19
言語 Nim
(2.0.2)
結果
AC  
実行時間 91 ms / 2,000 ms
コード長 18,006 bytes
コンパイル時間 4,286 ms
コンパイル使用メモリ 97,960 KB
実行使用メモリ 16,548 KB
最終ジャッジ日時 2023-12-02 15:57:29
合計ジャッジ時間 8,904 ms
ジャッジサーバーID
(参考情報)
judge10 / judge13
このコードへのチャレンジ
(要ログイン)

テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 2 ms
6,548 KB
testcase_01 AC 1 ms
6,548 KB
testcase_02 AC 2 ms
6,548 KB
testcase_03 AC 91 ms
16,548 KB
testcase_04 AC 74 ms
16,548 KB
testcase_05 AC 2 ms
6,548 KB
testcase_06 AC 61 ms
9,088 KB
testcase_07 AC 30 ms
6,548 KB
testcase_08 AC 32 ms
6,548 KB
testcase_09 AC 53 ms
8,704 KB
testcase_10 AC 39 ms
6,912 KB
testcase_11 AC 90 ms
13,056 KB
testcase_12 AC 19 ms
6,548 KB
testcase_13 AC 38 ms
7,040 KB
testcase_14 AC 65 ms
10,368 KB
testcase_15 AC 70 ms
9,728 KB
testcase_16 AC 55 ms
14,364 KB
testcase_17 AC 12 ms
6,548 KB
testcase_18 AC 17 ms
7,168 KB
testcase_19 AC 78 ms
12,032 KB
testcase_20 AC 69 ms
11,008 KB
testcase_21 AC 59 ms
10,880 KB
testcase_22 AC 34 ms
7,936 KB
testcase_23 AC 43 ms
8,192 KB
testcase_24 AC 7 ms
6,548 KB
testcase_25 AC 73 ms
11,008 KB
testcase_26 AC 43 ms
7,936 KB
testcase_27 AC 61 ms
11,392 KB
testcase_28 AC 77 ms
11,904 KB
testcase_29 AC 85 ms
14,076 KB
testcase_30 AC 65 ms
12,288 KB
testcase_31 AC 71 ms
11,520 KB
testcase_32 AC 40 ms
7,936 KB
testcase_33 AC 68 ms
11,776 KB
testcase_34 AC 78 ms
10,752 KB
testcase_35 AC 62 ms
13,184 KB
testcase_36 AC 72 ms
11,648 KB
testcase_37 AC 40 ms
8,192 KB
testcase_38 AC 70 ms
10,752 KB
testcase_39 AC 62 ms
9,728 KB
testcase_40 AC 76 ms
13,440 KB
testcase_41 AC 81 ms
14,080 KB
testcase_42 AC 43 ms
8,064 KB
testcase_43 AC 64 ms
10,112 KB
testcase_44 AC 35 ms
6,656 KB
testcase_45 AC 16 ms
6,548 KB
testcase_46 AC 75 ms
10,240 KB
testcase_47 AC 43 ms
8,064 KB
testcase_48 AC 39 ms
7,040 KB
testcase_49 AC 18 ms
6,548 KB
testcase_50 AC 49 ms
9,216 KB
testcase_51 AC 1 ms
6,548 KB
testcase_52 AC 39 ms
9,216 KB
権限があれば一括ダウンロードができます

ソースコード

diff #

import macros
macro Please(x): untyped = nnkStmtList.newTree()

Please use Nim-ACL
Please use Nim-ACL
Please use Nim-ACL


static:
  when not defined SecondCompile:
    # md5sum: ba55ef66a168f7cd9eef800705fb7c52  atcoder.tar.xz

    template getFileName():string = instantiationInfo().filename
    let fn = getFileName()
    block:
      let (output, ex) = gorgeEx("if [ -e ./atcoder ]; then exit 1; else exit 0; fi")
      # doAssert ex == 0, "atcoder directory already exisits"
    discard staticExec("echo \"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\" | base64 -d > atcoder.tar.xz && tar -Jxvf atcoder.tar.xz")
    let (output, ex) = gorgeEx("nim cpp -d:release -d:SecondCompile -d:danger --path:./ --opt:speed --multimethods:on --warning[SmallLshouldNotBeUsed]:off --checks:off -o:a.out " & fn)
    discard staticExec("rm -rf ./atcoder");doAssert ex == 0, output;quit(0)


when defined SecondCompile:
  const DO_CHECK = false;const DEBUG = false
else:
  const DO_CHECK = true;const DEBUG = true
const
  USE_DEFAULT_TABLE = true
  DO_TEST = false

# see https://github.com/zer0-star/Nim-ACL/tree/master/src/atcoder/extra/header/chaemon_header.nim
include atcoder/extra/header/chaemon_header

# see https://github.com/zer0-star/Nim-ACL/tree/master/src/atcoder/extra/graph/graph_template.nim
import atcoder/extra/graph/graph_template

# see https://github.com/zer0-star/Nim-ACL/tree/master/src/atcoder/extra/graph/dijkstra.nim
import atcoder/extra/graph/dijkstra


proc solve() =
  let N, M = nextInt()
  var g = initGraph(N)
  for _ in M:
    let u, v = nextInt() - 1
    g.addEdge(u, v)
  var
    d0 = g.dijkstra(0)
    d1 = g.dijkstra(N - 2)
    d2 = g.dijkstra(N - 1)
    ans = int.inf
  ans.min= min(int.inf, d0[N - 2] + d1[N - 1]) + d2[0]
  ans.min= min(int.inf, d0[N - 1] + d2[N - 2]) + d1[0]
  if ans == int.inf:
    echo -1
  else:
    echo ans
  discard

solve()

0