結果
問題 | No.3092 3-2-SAT |
ユーザー | KumaTachiRen |
提出日時 | 2022-04-01 22:58:12 |
言語 | C# (.NET 8.0.203) |
結果 |
RE
|
実行時間 | - |
コード長 | 5,294 bytes |
コンパイル時間 | 10,219 ms |
コンパイル使用メモリ | 166,528 KB |
実行使用メモリ | 194,804 KB |
最終ジャッジ日時 | 2024-04-30 15:28:20 |
合計ジャッジ時間 | 18,918 ms |
ジャッジサーバーID (参考情報) |
judge3 / 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 | 50 ms
29,792 KB |
testcase_01 | AC | 342 ms
96,932 KB |
testcase_02 | AC | 455 ms
93,304 KB |
testcase_03 | AC | 330 ms
86,644 KB |
testcase_04 | AC | 743 ms
116,400 KB |
testcase_05 | AC | 355 ms
87,792 KB |
testcase_06 | RE | - |
testcase_07 | RE | - |
testcase_08 | RE | - |
testcase_09 | RE | - |
testcase_10 | RE | - |
testcase_11 | AC | 51 ms
27,776 KB |
testcase_12 | AC | 48 ms
27,776 KB |
testcase_13 | AC | 50 ms
28,032 KB |
testcase_14 | AC | 52 ms
27,776 KB |
testcase_15 | AC | 51 ms
27,648 KB |
testcase_16 | RE | - |
testcase_17 | RE | - |
testcase_18 | RE | - |
testcase_19 | RE | - |
testcase_20 | RE | - |
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 (103 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 System.Linq; using System.Numerics; using System.Collections; using System.Collections.Generic; using System.IO; using System.Text; using N = System.Int64; static class Program { static public void Main(string[] args) { Console.SetOut(new StreamWriter(Console.OpenStandardOutput()) { AutoFlush = false }); var solver = new Solver(); solver.Solve(); Console.Out.Flush(); } } public class Solver { public void Solve() { int n = ri, m = ri; var s = new TwoSAT(3 * n); for (int i = 0; i < n; i++) { s.AddClosure(i + 3 * n, i + 4 * n); s.AddClosure(i + 3 * n, i + 5 * n); s.AddClosure(i + 4 * n, i + 5 * n); } for (int i = 0; i < m; i++) { int p = ri - 1, q = ri - 1, a = ri - 1, b = ri - 1; s.AddClosure(p + a * n, q + b * n); } if (s.Satisfy()) { var x = new int[n]; for (int i = 0; i < n; i++) { for (int j = 0; j < 3; j++) if (s.ans[i + j * n]) x[i] = j + 1; } WriteJoin(" ", x); } else Write(-1); } public class TwoSAT { int n; List<int>[] e, re; int[] cmp; List<int> ps; public bool[] ans; public TwoSAT(int _n) { n = _n; e = new List<int>[n * 2]; re = new List<int>[n * 2]; for (int i = 0; i < n * 2; i++) { e[i] = new List<int>(); re[i] = new List<int>(); } ans = new bool[n * 2]; } public void AddClosure(int x, int y) { AddEdge((x + n) % (2 * n), y); AddEdge((y + n) % (2 * n), x); } private void AddEdge(int x, int y) { e[x].Add(y); re[y].Add(x); } private void Dfs(int u) { cmp[u] = 0; for (int i = 0; i < e[u].Count; i++) { int v = e[u][i]; if (cmp[v] == -1) Dfs(v); } ps.Add(u); } void rDfs(int u, int k) { cmp[u] = k; for (int i = 0; i < re[u].Count; i++) { int v = re[u][i]; if (cmp[v] == -1) rDfs(v, k); } } private int Scc() { cmp = new int[n * 2]; for (int i = 0; i < 2 * n; i++) cmp[i] = -1; ps = new List<int>(); for (int i = 0; i < 2 * n; i++) if (cmp[i] == -1) Dfs(i); for (int i = 0; i < 2 * n; i++) cmp[i] = -1; int k = 0; for (int i = 2 * n - 1; i >= 0; i--) if (cmp[ps[i]] == -1) rDfs(ps[i], k++); return k; } public bool Satisfy() { Scc(); for (int i = 0; i < n; i++) { if (cmp[i] == cmp[i + n]) return false; ans[i] = cmp[i] > cmp[i + n]; } return true; } } const long inf = (long)1 << 60; int ri { get { return (int)sc.Integer(); } } long rl { get { return sc.Integer(); } } double rd { get { return sc.Double(); } } string rs { get { return sc.Scan(); } } public StreamScanner sc = new StreamScanner(Console.OpenStandardInput()); void WriteJoin<T>(string s, T[] t) { Console.WriteLine(string.Join(s, t)); } void WriteJoin<T>(string s, List<T> t) { Console.WriteLine(string.Join(s, t)); } void Write<T>(T t) { Console.WriteLine(t.ToString()); } void YN(bool t) { Console.WriteLine(t ? "YES" : "NO"); } void Yn(bool t) { Console.WriteLine(t ? "Yes" : "No"); } void yn(bool t) { Console.WriteLine(t ? "yes" : "no"); } void Swap(ref int x, ref int y) { x ^= y; y ^= x; x ^= y; } } public class StreamScanner { public StreamScanner(Stream stream) { str = stream; } private readonly Stream str; private readonly byte[] buf = new byte[1024]; private int len, ptr; public bool isEof = false; public bool IsEndOfStream { get { return isEof; } } private byte read() { if (isEof) throw new EndOfStreamException(); if (ptr >= len) { ptr = 0; if ((len = str.Read(buf, 0, 1024)) <= 0) { isEof = true; return 0; } } return buf[ptr++]; } public char Char() { byte b = 0; do b = read(); while (b < 33 || 126 < b); return (char)b; } public string Scan() { var sb = new StringBuilder(); for (var b = Char(); b >= 33 && b <= 126; b = (char)read()) sb.Append(b); return sb.ToString(); } public long Integer() { long ret = 0; byte b = 0; var ng = false; do b = read(); while (b != '-' && (b < '0' || '9' < b)); if (b == '-') { ng = true; b = read(); } for (; true; b = read()) { if (b < '0' || '9' < b) return ng ? -ret : ret; else ret = ret * 10 + b - '0'; } } public double Double() { return double.Parse(Scan()); } }