結果
| 問題 | No.1023 Cyclic Tour |
| ユーザー |
 ひばち
|
| 提出日時 | 2020-04-25 19:45:47 |
| 言語 | C#(csc) (csc 3.9.0) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 8,652 bytes |
| コンパイル時間 | 4,477 ms |
| コンパイル使用メモリ | 120,988 KB |
| 実行使用メモリ | 79,072 KB |
| 最終ジャッジ日時 | 2024-11-07 17:43:22 |
| 合計ジャッジ時間 | 27,174 ms |
|
ジャッジサーバーID （参考情報） |
judge2 / judge3 |
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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 | WA | - |
| testcase_01 | WA | - |
| testcase_02 | AC | 37 ms
26,928 KB |
| testcase_03 | WA | - |
| testcase_04 | AC | 179 ms
40,240 KB |
| testcase_05 | AC | 174 ms
35,896 KB |
| testcase_06 | AC | 188 ms
40,300 KB |
| testcase_07 | AC | 188 ms
37,840 KB |
| testcase_08 | WA | - |
| testcase_09 | WA | - |
| testcase_10 | WA | - |
| testcase_11 | WA | - |
| testcase_12 | WA | - |
| testcase_13 | WA | - |
| testcase_14 | WA | - |
| testcase_15 | WA | - |
| testcase_16 | WA | - |
| testcase_17 | WA | - |
| testcase_18 | WA | - |
| testcase_19 | WA | - |
| testcase_20 | WA | - |
| testcase_21 | WA | - |
| testcase_22 | WA | - |
| testcase_23 | WA | - |
| testcase_24 | WA | - |
| testcase_25 | WA | - |
| testcase_26 | WA | - |
| testcase_27 | WA | - |
| testcase_28 | WA | - |
| testcase_29 | WA | - |
| testcase_30 | WA | - |
| testcase_31 | WA | - |
| testcase_32 | WA | - |
| testcase_33 | WA | - |
| testcase_34 | AC | 161 ms
39,416 KB |
| testcase_35 | AC | 305 ms
40,656 KB |
| testcase_36 | WA | - |
| testcase_37 | WA | - |
| testcase_38 | WA | - |
| testcase_39 | WA | - |
| testcase_40 | WA | - |
| testcase_41 | WA | - |
| testcase_42 | AC | 431 ms
41,172 KB |
| testcase_43 | AC | 581 ms
69,288 KB |
| testcase_44 | WA | - |
| testcase_45 | WA | - |
| testcase_46 | WA | - |
| testcase_47 | WA | - |
| testcase_48 | WA | - |
| testcase_49 | WA | - |
| testcase_50 | WA | - |
| testcase_51 | AC | 406 ms
43,384 KB |
| testcase_52 | AC | 424 ms
40,696 KB |
コンパイルメッセージ
Microsoft (R) Visual C# Compiler version 3.9.0-6.21124.20 (db94f4cc) Copyright (C) Microsoft Corporation. All rights reserved.
ソースコード
using System;
using System.Collections.Generic;
using System.Linq;
using System.IO;
using System.Runtime.CompilerServices;
using System.Text;
using System.Diagnostics;
using System.Numerics;
using static System.Console;
using static System.Convert;
using static System.Math;
using static Template;
using Pi = Pair<int, int>;
class Solver
{
public void Solve(Scanner sc)
{
int N, M;
sc.Make(out N, out M);
var uf = new UnionFind(N);
var edge = Create(N, () => new List<int>());
for(int i = 0; i < M; i++)
{
int a, b, c;
sc.Make(out a, out b, out c);a--;b--;
if (c==1&&!uf.Union(a, b)) Fail("Yes");
if (c == 2) edge[a].Add(b);
}
var l = new List<int>();
for (int i = 0; i < N; i++)
{
l.Add(uf[i]);
}
var tp = new TopologicalSort(uf.GroupCount);
var d = Compression(l);
var use = Create(uf.GroupCount, () => new HashSet<int>());
for(int i=0;i<N;i++)
foreach(var e in edge[i])
if (uf[e] != uf[i])
{
if (use[d[uf[i]]].Contains(d[uf[e]])) continue;
tp.AddEdge(d[uf[i]], d[uf[e]]);
use[d[uf[i]]].Add(d[uf[e]]);
}
if (tp.Execute().Count == uf.GroupCount) Fail("Yes");
else WriteLine("No");
}
public static Dictionary<T, int> Compression<T>(IList<T> A, int d = 0, Comparison<T> cmp = null)
{
cmp = cmp ?? Comparer<T>.Default.Compare;
var dic = new Dictionary<T, int>();
var cp = A.ToArray();
Array.Sort(cp, (a, b) => cmp(a, b));
for (var i = 0; i < cp.Length; i++)
if (!dic.ContainsKey(cp[i]))
dic[cp[i]] = d++;
return dic;
}
}
public class UnionFind
{
public int GroupCount { get; private set; }
protected int[] data;
public virtual int this[int i] => Find(i);
public UnionFind(int size)
{
data = Create(size, () => -1);
GroupCount = size;
}
protected int Find(int i)
=> data[i] < 0 ? i : (data[i] = Find(data[i]));
public int Size(int i)
=> -data[Find(i)];
public virtual bool Union(int u, int v)
{
u = Find(u); v = Find(v);
if (u == v) return false;
if (data[u] > data[v])
swap(ref u, ref v);
GroupCount--;
data[u] += data[v];
data[v] = u;
return true;
}
}
public class TopologicalSort
{
private List<int>[] g;
private int[] indeg;
private List<int> list;
public TopologicalSort(int count)
{ g = Create(count, () => new List<int>()); indeg = new int[count]; }
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public void AddEdge(int from, int to)
{
g[from].Add(to);
indeg[to]++;
}
public List<int> Execute()
{
list = new List<int>(g.Length);
var q = new Queue<int>();
for (var i = 0; i < g.Length; i++)
if (indeg[i] == 0)
q.Enqueue(i);
while (q.Any())
{
var p = q.Dequeue();
list.Add(p);
foreach (var e in g[p])
if (--indeg[e] == 0)
q.Enqueue(e);
}
return list;
}
}
#region Template
public static class Template
{
static void Main(string[] args)
{
Console.SetOut(new StreamWriter(Console.OpenStandardOutput()) { AutoFlush = false });
new Solver().Solve(new Scanner());
Console.Out.Flush();
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static bool chmin<T>(ref T a, T b) where T : IComparable<T> { if (a.CompareTo(b) == 1) { a = b; return true; } return false; }
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static bool chmax<T>(ref T a, T b) where T : IComparable<T> { if (a.CompareTo(b) == -1) { a = b; return true; } return false; }
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void swap<T>(ref T a, ref T b) { var t = b; b = a; a = t; }
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void swap<T>(this IList<T> A, int i, int j) { var t = A[i]; A[i] = A[j]; A[j] = t; }
public static T[] Create<T>(int n, Func<T> f) { var rt = new T[n]; for (var i = 0; i < rt.Length; ++i) rt[i] = f(); return rt; }
public static T[] Create<T>(int n, Func<int, T> f) { var rt = new T[n]; for (var i = 0; i < rt.Length; ++i) rt[i] = f(i); return rt; }
public static IEnumerable<T> Shuffle<T>(this IEnumerable<T> A) => A.OrderBy(v => Guid.NewGuid());
public static int CompareTo<T>(this T[] A, T[] B, Comparison<T> cmp = null) { cmp = cmp ?? Comparer<T>.Default.Compare; for (var i = 0; i < Min(A.Length, B.Length); i++) { int c = cmp(A[i], B[i]); if (c > 0) return 1; else if (c < 0) return -1; } if (A.Length == B.Length) return 0; if (A.Length > B.Length) return 1; else return -1; }
public static int MaxElement<T>(this IList<T> A, Comparison<T> cmp = null) { cmp = cmp ?? Comparer<T>.Default.Compare; T max = A[0]; int rt = 0; for (int i = 1; i < A.Count; i++) if (cmp(max, A[i]) < 0) { max = A[i]; rt = i; } return rt; }
public static T PopBack<T>(this List<T> A) { var v = A[A.Count - 1]; A.RemoveAt(A.Count - 1); return v; }
public static void Fail<T>(T s) { Console.WriteLine(s); Console.Out.Close(); Environment.Exit(0); }
}
public class Scanner
{
public string Str => Console.ReadLine().Trim();
public int Int => int.Parse(Str);
public long Long => long.Parse(Str);
public double Double => double.Parse(Str);
public int[] ArrInt => Str.Split(' ').Select(int.Parse).ToArray();
public long[] ArrLong => Str.Split(' ').Select(long.Parse).ToArray();
public char[][] Grid(int n) => Create(n, () => Str.ToCharArray());
public int[] ArrInt1D(int n) => Create(n, () => Int);
public long[] ArrLong1D(int n) => Create(n, () => Long);
public int[][] ArrInt2D(int n) => Create(n, () => ArrInt);
public long[][] ArrLong2D(int n) => Create(n, () => ArrLong);
private Queue<string> q = new Queue<string>();
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public T Next<T>() { if (q.Count == 0) foreach (var item in Str.Split(' ')) q.Enqueue(item); return (T)Convert.ChangeType(q.Dequeue(), typeof(T)); }
public void Make<T1>(out T1 v1) => v1 = Next<T1>();
public void Make<T1, T2>(out T1 v1, out T2 v2) { v1 = Next<T1>(); v2 = Next<T2>(); }
public void Make<T1, T2, T3>(out T1 v1, out T2 v2, out T3 v3) { Make(out v1, out v2); v3 = Next<T3>(); }
public void Make<T1, T2, T3, T4>(out T1 v1, out T2 v2, out T3 v3, out T4 v4) { Make(out v1, out v2, out v3); v4 = Next<T4>(); }
public void Make<T1, T2, T3, T4, T5>(out T1 v1, out T2 v2, out T3 v3, out T4 v4, out T5 v5) { Make(out v1, out v2, out v3, out v4); v5 = Next<T5>(); }
public void Make<T1, T2, T3, T4, T5, T6>(out T1 v1, out T2 v2, out T3 v3, out T4 v4, out T5 v5, out T6 v6) { Make(out v1, out v2, out v3, out v4, out v5); v6 = Next<T6>(); }
//public (T1, T2) Make<T1, T2>() { Make(out T1 v1, out T2 v2); return (v1, v2); }
//public (T1, T2, T3) Make<T1, T2, T3>() { Make(out T1 v1, out T2 v2, out T3 v3); return (v1, v2, v3); }
//public (T1, T2, T3, T4) Make<T1, T2, T3, T4>() { Make(out T1 v1, out T2 v2, out T3 v3, out T4 v4); return (v1, v2, v3, v4); }
}
public class Pair<T1, T2> : IComparable<Pair<T1, T2>>
{
public T1 v1;
public T2 v2;
public Pair() { }
public Pair(T1 v1, T2 v2)
{ this.v1 = v1; this.v2 = v2; }
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public int CompareTo(Pair<T1, T2> p)
{
var c = Comparer<T1>.Default.Compare(v1, p.v1);
if (c == 0)
c = Comparer<T2>.Default.Compare(v2, p.v2);
return c;
}
public override string ToString() => $"{v1.ToString()} {v2.ToString()}";
public void Deconstruct(out T1 a, out T2 b) { a = v1; b = v2; }
}
public class Pair<T1, T2, T3> : Pair<T1, T2>, IComparable<Pair<T1, T2, T3>>
{
public T3 v3;
public Pair() : base() { }
public Pair(T1 v1, T2 v2, T3 v3) : base(v1, v2)
{ this.v3 = v3; }
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public int CompareTo(Pair<T1, T2, T3> p)
{
var c = base.CompareTo(p);
if (c == 0)
c = Comparer<T3>.Default.Compare(v3, p.v3);
return c;
}
public override string ToString() => $"{base.ToString()} {v3.ToString()}";
public void Deconstruct(out T1 a, out T2 b, out T3 c) { Deconstruct(out a, out b); c = v3; }
}
#endregion