結果

問題 No.1640 簡単な色塗り
ユーザー yupiteru_kunyupiteru_kun
提出日時 2021-08-06 22:33:31
言語 C#
(.NET 8.0.203)
結果
AC  
実行時間 173 ms / 2,000 ms
コード長 11,067 bytes
コンパイル時間 15,132 ms
コンパイル使用メモリ 167,376 KB
実行使用メモリ 51,712 KB
最終ジャッジ日時 2024-06-29 15:38:47
合計ジャッジ時間 25,137 ms
ジャッジサーバーID
（参考情報） 		judge2 / judge4
このコードへのチャレンジ
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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 54 ms
28,544 KB
testcase_01 AC 50 ms
24,668 KB
testcase_02 AC 55 ms
28,160 KB
testcase_03 AC 54 ms
28,544 KB
testcase_04 AC 132 ms
51,584 KB
testcase_05 AC 131 ms
51,712 KB
testcase_06 AC 53 ms
28,016 KB
testcase_07 AC 54 ms
28,544 KB
testcase_08 AC 54 ms
28,288 KB
testcase_09 AC 49 ms
24,576 KB
testcase_10 AC 120 ms
43,648 KB
testcase_11 AC 108 ms
41,200 KB
testcase_12 AC 100 ms
40,192 KB
testcase_13 AC 162 ms
50,048 KB
testcase_14 AC 161 ms
49,664 KB
testcase_15 AC 91 ms
37,120 KB
testcase_16 AC 97 ms
38,636 KB
testcase_17 AC 139 ms
47,488 KB
testcase_18 AC 67 ms
31,232 KB
testcase_19 AC 101 ms
39,936 KB
testcase_20 AC 119 ms
43,264 KB
testcase_21 AC 105 ms
41,344 KB
testcase_22 AC 60 ms
29,440 KB
testcase_23 AC 123 ms
44,288 KB
testcase_24 AC 76 ms
33,920 KB
testcase_25 AC 102 ms
39,932 KB
testcase_26 AC 133 ms
45,804 KB
testcase_27 AC 87 ms
36,840 KB
testcase_28 AC 157 ms
49,024 KB
testcase_29 AC 128 ms
45,676 KB
testcase_30 AC 66 ms
29,184 KB
testcase_31 AC 122 ms
44,544 KB
testcase_32 AC 113 ms
42,112 KB
testcase_33 AC 94 ms
37,104 KB
testcase_34 AC 103 ms
39,808 KB
testcase_35 AC 91 ms
37,248 KB
testcase_36 AC 67 ms
29,184 KB
testcase_37 AC 69 ms
30,208 KB
testcase_38 AC 115 ms
42,880 KB
testcase_39 AC 80 ms
33,520 KB
testcase_40 AC 81 ms
33,920 KB
testcase_41 AC 105 ms
40,320 KB
testcase_42 AC 84 ms
34,688 KB
testcase_43 AC 85 ms
34,944 KB
testcase_44 AC 86 ms
34,944 KB
testcase_45 AC 77 ms
32,768 KB
testcase_46 AC 69 ms
29,568 KB
testcase_47 AC 64 ms
28,416 KB
testcase_48 AC 119 ms
43,520 KB
testcase_49 AC 54 ms
25,472 KB
testcase_50 AC 49 ms
24,832 KB
testcase_51 AC 53 ms
28,160 KB
testcase_52 AC 172 ms
51,712 KB
testcase_53 AC 173 ms
51,712 KB
07_evil_01.txt AC 376 ms
78,464 KB
07_evil_02.txt AC 623 ms
265,432 KB
権限があれば一括ダウンロードができます
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 (95 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

diff # 

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using static System.Math;
using System.Text;
using System.Threading;
using System.Globalization;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using Library;

namespace Program
{
    public static class ProblemE
    {
        static bool SAIKI = false;
        static public int numberOfRandomCases = 0;
        static public void MakeTestCase(List<string> _input, List<string> _output, ref Func<string[], bool> _outputChecker)
        {
        }
        static public void Solve()
        {
            var N = NN;
            var AB = Repeat(0, N).Select(_ => new { A = NN - 1, B = NN - 1 }).ToArray();
            var uf = new LIB_UnionFind<long>(Repeat(0L, N), (x, y) => x + y);
            foreach (var item in AB)
            {
                uf.Unite(item.A, item.B);
                uf.Set(item.A, uf.Calc(item.A) + 1);
            }
            var path = Repeat(0, N).Select(_ => new List<(long, long)>()).ToArray();
            var jisu = new long[N];
            for (var i = 0; i < N; ++i)
            {
                var item = AB[i];
                jisu[item.A]++;
                jisu[item.B]++;
                path[item.A].Add((item.B, i));
                path[item.B].Add((item.A, i));
            }
            for (var i = 0; i < N; ++i)
            {
                if (uf.Calc(i) < uf.Count(i))
                {
                    Console.WriteLine("No");
                    return;
                }
            }
            Console.WriteLine("Yes");
            var q = new Queue<long>();
            var done = new bool[N];
            for (var i = 0; i < N; ++i)
            {
                if (jisu[i] == 1)
                {
                    q.Enqueue(i);
                    done[i] = true;
                }
            }
            var ans = new long[N];
            ans.Fill(-1);
            for (var i = 0; i <= N; ++i)
            {
                while (q.Count > 0)
                {
                    var pop = q.Dequeue();
                    foreach (var item in path[pop])
                    {
                        if (ans[item.Item2] == -1)
                        {
                            ans[item.Item2] = pop;
                            if (--jisu[item.Item1] == 1)
                            {
                                q.Enqueue(item.Item1);
                                done[item.Item1] = true;
                            }
                            break;
                        }
                    }
                }
                if (i == N) break;
                if (!done[i]) q.Enqueue(i);
            }
            for (var i = 0; i < N; ++i)
            {
                Console.WriteLine(ans[i] + 1);
            }
        }
        class Printer : StreamWriter
        {
            public override IFormatProvider FormatProvider { get { return CultureInfo.InvariantCulture; } }
            public Printer(Stream stream) : base(stream, new UTF8Encoding(false, true)) { base.AutoFlush = false; }
            public Printer(Stream stream, Encoding encoding) : base(stream, encoding) { base.AutoFlush = false; }
        }
        static LIB_FastIO fastio = new LIB_FastIODebug();
        static public void Main(string[] args) { if (args.Length == 0) { fastio = new LIB_FastIO(); Console.SetOut(new Printer(Console.OpenStandardOutput())); } if (SAIKI) { var t = new Thread(Solve, 134217728); t.Start(); t.Join(); } else Solve(); Console.Out.Flush(); }
        static long NN => fastio.Long();
        static double ND => fastio.Double();
        static string NS => fastio.Scan();
        static long[] NNList(long N) => Repeat(0, N).Select(_ => NN).ToArray();
        static double[] NDList(long N) => Repeat(0, N).Select(_ => ND).ToArray();
        static string[] NSList(long N) => Repeat(0, N).Select(_ => NS).ToArray();
        static long Count<T>(this IEnumerable<T> x, Func<T, bool> pred) => Enumerable.Count(x, pred);
        static IEnumerable<T> Repeat<T>(T v, long n) => Enumerable.Repeat<T>(v, (int)n);
        static IEnumerable<int> Range(long s, long c) => Enumerable.Range((int)s, (int)c);
        static IOrderedEnumerable<T> OrderByRand<T>(this IEnumerable<T> x) => Enumerable.OrderBy(x, _ => xorshift);
        static IOrderedEnumerable<T> OrderBy<T>(this IEnumerable<T> x) => Enumerable.OrderBy(x.OrderByRand(), e => e);
        static IOrderedEnumerable<T1> OrderBy<T1, T2>(this IEnumerable<T1> x, Func<T1, T2> selector) => Enumerable.OrderBy(x.OrderByRand(), selector);
        static IOrderedEnumerable<T> OrderByDescending<T>(this IEnumerable<T> x) => Enumerable.OrderByDescending(x.OrderByRand(), e => e);
        static IOrderedEnumerable<T1> OrderByDescending<T1, T2>(this IEnumerable<T1> x, Func<T1, T2> selector) => Enumerable.OrderByDescending(x.OrderByRand(), selector);
        static IOrderedEnumerable<string> OrderBy(this IEnumerable<string> x) => x.OrderByRand().OrderBy(e => e, StringComparer.OrdinalIgnoreCase);
        static IOrderedEnumerable<T> OrderBy<T>(this IEnumerable<T> x, Func<T, string> selector) => x.OrderByRand().OrderBy(selector, StringComparer.OrdinalIgnoreCase);
        static IOrderedEnumerable<string> OrderByDescending(this IEnumerable<string> x) => x.OrderByRand().OrderByDescending(e => e, StringComparer.OrdinalIgnoreCase);
        static IOrderedEnumerable<T> OrderByDescending<T>(this IEnumerable<T> x, Func<T, string> selector) => x.OrderByRand().OrderByDescending(selector, StringComparer.OrdinalIgnoreCase);
        static string Join<T>(this IEnumerable<T> x, string separator = "") => string.Join(separator, x);
        static uint xorshift { get { _xsi.MoveNext(); return _xsi.Current; } }
        static IEnumerator<uint> _xsi = _xsc();
        static IEnumerator<uint> _xsc() { uint x = 123456789, y = 362436069, z = 521288629, w = (uint)(DateTime.Now.Ticks & 0xffffffff); while (true) { var t = x ^ (x << 11); x = y; y = z; z = w; w = (w ^ (w >> 19)) ^ (t ^ (t >> 8)); yield return w; } }
        static bool Chmax<T>(this ref T lhs, T rhs) where T : struct, IComparable<T> { if (lhs.CompareTo(rhs) < 0) { lhs = rhs; return true; } return false; }
        static bool Chmin<T>(this ref T lhs, T rhs) where T : struct, IComparable<T> { if (lhs.CompareTo(rhs) > 0) { lhs = rhs; return true; } return false; }
        static void Fill<T>(this T[] array, T value) => array.AsSpan().Fill(value);
        static void Fill<T>(this T[,] array, T value) => MemoryMarshal.CreateSpan(ref array[0, 0], array.Length).Fill(value);
        static void Fill<T>(this T[,,] array, T value) => MemoryMarshal.CreateSpan(ref array[0, 0, 0], array.Length).Fill(value);
        static void Fill<T>(this T[,,,] array, T value) => MemoryMarshal.CreateSpan(ref array[0, 0, 0, 0], array.Length).Fill(value);
    }
}
namespace Library {
    class LIB_FastIO
    {
        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public LIB_FastIO() { str = Console.OpenStandardInput(); }
        readonly Stream str;
        readonly byte[] buf = new byte[2048];
        int len, ptr;
        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        byte read()
        {
            if (ptr >= len)
            {
                ptr = 0;
                if ((len = str.Read(buf, 0, 2048)) <= 0)
                {
                    return 0;
                }
            }
            return buf[ptr++];
        }
        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        char Char()
        {
            byte b = 0;
            do b = read();
            while (b < 33 || 126 < b);
            return (char)b;
        }
        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        virtual public string Scan()
        {
            var sb = new StringBuilder();
            for (var b = Char(); b >= 33 && b <= 126; b = (char)read())
                sb.Append(b);
            return sb.ToString();
        }
        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        virtual public long Long()
        {
            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 << 3) + (ret << 1) + b - '0';
            }
        }
        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        virtual public double Double() { return double.Parse(Scan(), CultureInfo.InvariantCulture); }
    }
    class LIB_FastIODebug : LIB_FastIO
    {
        Queue<string> param = new Queue<string>();
        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        string NextString() { if (param.Count == 0) foreach (var item in Console.ReadLine().Split(' ')) param.Enqueue(item); return param.Dequeue(); }
        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public LIB_FastIODebug() { }
        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public override string Scan() => NextString();
        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public override long Long() => long.Parse(NextString());
        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public override double Double() => double.Parse(NextString());
    }
    class LIB_UnionFind<T>
    {
        int[] d;
        T[] v;
        Func<T, T, T> f;
        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public LIB_UnionFind(IEnumerable<T> s, Func<T, T, T> func)
        {
            v = s.ToArray();
            d = Enumerable.Repeat(-1, v.Length).ToArray();
            f = func;
        }
        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public bool Unite(long x, long y)
        {
            x = Root(x);
            y = Root(y);
            if (x != y)
            {
                d[x] = d[x] + d[y];
                v[x] = f(v[x], v[y]);
                d[y] = (int)x;
            }
            return x != y;
        }
        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public bool IsSame(long x, long y) => Root(x) == Root(y);
        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public long Root(long x) => d[x] < 0 ? x : d[x] = (int)Root(d[x]);
        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public long Count(long x) => -d[Root(x)];
        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public T Calc(long x) => v[Root(x)];
        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public void Set(long x, T val) => v[Root(x)] = val;
    }
    class LIB_UnionFind : LIB_UnionFind<int>
    {
        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        public LIB_UnionFind(long n) : base(Enumerable.Repeat(0, (int)n), (x, y) => x + y) { }
        [MethodImpl(MethodImplOptions.AggressiveInlining)]
        new private void Calc(long x) { }
    }
}
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