結果
問題 | No.2780 The Bottle Imp |
ユーザー | kakel-san |
提出日時 | 2024-06-07 22:09:23 |
言語 | C# (.NET 8.0.203) |
結果 |
WA
|
実行時間 | - |
コード長 | 4,996 bytes |
コンパイル時間 | 11,981 ms |
コンパイル使用メモリ | 166,884 KB |
実行使用メモリ | 192,664 KB |
最終ジャッジ日時 | 2024-06-08 10:30:52 |
合計ジャッジ時間 | 18,896 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge2 |
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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 | 59 ms
30,848 KB |
testcase_01 | AC | 57 ms
30,848 KB |
testcase_02 | AC | 58 ms
30,696 KB |
testcase_03 | AC | 58 ms
30,720 KB |
testcase_04 | AC | 57 ms
30,592 KB |
testcase_05 | AC | 59 ms
30,592 KB |
testcase_06 | AC | 61 ms
30,464 KB |
testcase_07 | AC | 150 ms
50,688 KB |
testcase_08 | AC | 145 ms
50,560 KB |
testcase_09 | AC | 144 ms
50,688 KB |
testcase_10 | AC | 143 ms
50,672 KB |
testcase_11 | AC | 141 ms
50,668 KB |
testcase_12 | AC | 218 ms
63,104 KB |
testcase_13 | AC | 211 ms
63,360 KB |
testcase_14 | AC | 106 ms
43,520 KB |
testcase_15 | AC | 105 ms
43,520 KB |
testcase_16 | WA | - |
testcase_17 | WA | - |
testcase_18 | AC | 108 ms
43,392 KB |
testcase_19 | AC | 108 ms
43,520 KB |
testcase_20 | AC | 107 ms
43,520 KB |
testcase_21 | WA | - |
testcase_22 | AC | 101 ms
40,448 KB |
testcase_23 | AC | 102 ms
42,880 KB |
testcase_24 | AC | 144 ms
53,248 KB |
testcase_25 | AC | 171 ms
56,832 KB |
testcase_26 | AC | 128 ms
48,492 KB |
testcase_27 | AC | 125 ms
48,384 KB |
testcase_28 | AC | 127 ms
48,640 KB |
testcase_29 | AC | 126 ms
51,960 KB |
testcase_30 | AC | 137 ms
53,120 KB |
testcase_31 | AC | 172 ms
59,136 KB |
testcase_32 | AC | 92 ms
39,032 KB |
testcase_33 | AC | 198 ms
82,816 KB |
testcase_34 | AC | 217 ms
84,608 KB |
testcase_35 | AC | 87 ms
37,120 KB |
testcase_36 | AC | 57 ms
30,720 KB |
testcase_37 | AC | 61 ms
30,828 KB |
testcase_38 | AC | 88 ms
37,120 KB |
testcase_39 | AC | 153 ms
63,224 KB |
testcase_40 | AC | 155 ms
63,104 KB |
testcase_41 | AC | 153 ms
63,096 KB |
testcase_42 | AC | 59 ms
30,828 KB |
testcase_43 | WA | - |
コンパイルメッセージ
復元対象のプロジェクトを決定しています... /home/judge/data/code/main.csproj を復元しました (97 ms)。 MSBuild のバージョン 17.9.6+a4ecab324 (.NET) main -> /home/judge/data/code/bin/Release/net8.0/main.dll main -> /home/judge/data/code/bin/Release/net8.0/publish/
ソースコード
using System; using static System.Console; using System.Linq; using System.Collections.Generic; class Program { static int NN => int.Parse(ReadLine()); static int[] NList => ReadLine().Split().Select(int.Parse).ToArray(); static int[][] NArr(long n) => Enumerable.Repeat(0, (int)n).Select(_ => NList).ToArray(); public static void Main() { Solve(); } static void Solve() { var n = NN; var map = NArr(n); var g = new SCCGraph(n); for (var i = 0; i < n; ++i) for (var j = 1; j < map[i].Length; ++j) { g.AddEdge(i, map[i][j] - 1); } var scc = g.SCC(); var gid = new int[n]; for (var i = 0; i < scc.Length; ++i) foreach (var s in scc[i]) gid[s] = i; var tree = new List<int>[scc.Length]; for (var i = 0; i < tree.Length; ++i) tree[i] = new List<int>(); var refs = new int[scc.Length]; for (var i = 0; i < n; ++i) for (var j = 1; j < map[i].Length; ++j) { if (gid[i] != gid[map[i][j] - 1]) { tree[gid[i]].Add(gid[map[i][j] - 1]); ++refs[gid[map[i][j] - 1]]; } } var list = new List<int>(); var q = new Queue<int>(); for (var i = 0; i < refs.Length; ++i) if (refs[i] == 0) { list.Add(i); q.Enqueue(i); } if (q.Count > 1) { WriteLine("No"); return; } while (q.Count > 0) { var cur = q.Dequeue(); foreach (var next in tree[cur]) { --refs[next]; if (refs[next] == 0) { list.Add(next); q.Enqueue(next); if (q.Count > 1) { WriteLine("No"); return; } } } } WriteLine(list.Count == scc.Length ? "Yes" : "No"); } class SCCGraph { private int _n; private List<(int from, int to)> edges; public SCCGraph(int n) { _n = n; edges = new List<(int, int)>(); } public int NumVertices() { return _n; } public void AddEdge(int from, int to) { edges.Add((from, to )); } public (int, int[]) SCCIds() { var g = new CSR<int>(_n, edges); var nowOrd = 0; var groupNum = 0; var visited = new List<int>(_n); var low = new int[_n]; var ord = Enumerable.Repeat(-1, _n).ToArray(); var ids = new int[_n]; void DFS(int v) { low[v] = ord[v] = nowOrd++; visited.Add(v); for (var i = g.Start[v]; i < g.Start[v + 1]; ++i) { var to = g.EList[i]; if (ord[to] == -1) { DFS(to); low[v] = Math.Min(low[v], low[to]); } else low[v] = Math.Min(low[v], ord[to]); } if (low[v] == ord[v]) { while (true) { var u = visited.Last(); visited.RemoveAt(visited.Count - 1); ord[u] = _n; ids[u] = groupNum; if (u == v) break; } ++groupNum; } } for (var i = 0; i < _n; ++i) if (ord[i] == -1) DFS(i); for (var i = 0; i < ids.Length; ++i) ids[i] = groupNum - 1 - ids[i]; return (groupNum, ids); } public List<int>[] SCC() { var (groupNum, list) = SCCIds(); var counts = new int[groupNum]; foreach (var x in list) ++counts[x]; var groups = new List<int>[groupNum]; for (var i = 0; i < groups.Length; ++i) groups[i] = new List<int>(counts[i]); for (var i = 0; i < _n; ++i) groups[list[i]].Add(i); return groups; } } // 有向辺のリスト class CSR<E> { public int[] Start { get; private set; } public E[] EList { get; private set; } public CSR(int n, List<(int, E)> edges) { Start = new int[n + 1]; EList = new E[edges.Count]; foreach (var e in edges) ++Start[e.Item1 + 1]; for (var i = 1; i <= n; ++i) Start[i] += Start[i - 1]; var counter = (int[])Start.Clone(); foreach (var e in edges) { EList[counter[e.Item1]++] = e.Item2; } } } }