結果

問題 No.630 門松グラフ
ユーザー sekiya9311sekiya9311
提出日時 2018-01-05 22:54:36
言語 C#(csc)
(csc 3.9.0)
結果
WA  
実行時間 -
コード長 8,510 bytes
コンパイル時間 928 ms
コンパイル使用メモリ 118,344 KB
実行使用メモリ 38,016 KB
最終ジャッジ日時 2024-06-02 10:31:01
合計ジャッジ時間 5,115 ms
ジャッジサーバーID
（参考情報） 		judge5 / judge2
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 26 ms
19,072 KB
testcase_01 AC 22 ms
18,816 KB
testcase_02 AC 23 ms
18,944 KB
testcase_03 AC 25 ms
19,200 KB
testcase_04 AC 25 ms
19,200 KB
testcase_05 AC 24 ms
19,200 KB
testcase_06 AC 24 ms
18,944 KB
testcase_07 AC 25 ms
19,200 KB
testcase_08 WA -
testcase_09 AC 25 ms
18,944 KB
testcase_10 AC 24 ms
19,072 KB
testcase_11 AC 26 ms
19,328 KB
testcase_12 WA -
testcase_13 AC 26 ms
19,200 KB
testcase_14 WA -
testcase_15 AC 27 ms
19,200 KB
testcase_16 WA -
testcase_17 WA -
testcase_18 WA -
testcase_19 WA -
testcase_20 AC 102 ms
38,016 KB
testcase_21 AC 26 ms
18,944 KB
testcase_22 AC 101 ms
37,888 KB
testcase_23 AC 24 ms
19,072 KB
testcase_24 WA -
testcase_25 AC 26 ms
20,864 KB
testcase_26 AC 73 ms
30,080 KB
testcase_27 WA -
testcase_28 AC 98 ms
36,992 KB
testcase_29 AC 93 ms
35,584 KB
testcase_30 AC 92 ms
34,432 KB
testcase_31 AC 82 ms
32,768 KB
testcase_32 AC 60 ms
29,440 KB
testcase_33 AC 50 ms
26,880 KB
testcase_34 AC 70 ms
30,592 KB
testcase_35 AC 54 ms
27,520 KB
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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

diff # 

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ProgrammingContest
{
    class MainClass : IDisposable
    {
        Scanner sc;
        Writer wr;
        string backPath = "..";
        char dirSep = System.IO.Path.DirectorySeparatorChar;
        string inFilePath = null;
        string outFilePath = null;
        public MainClass()
        {
            this.inFilePath = this.backPath
                            + this.dirSep
                            + this.backPath
                            + this.dirSep
                            + "in.txt";
            this.outFilePath = this.backPath
                             + this.dirSep
                             + this.backPath
                             + this.dirSep
                             + "out.txt";

            this.wr = new Writer(this.isReactive);
            //this.wr = new Writer(this.outFilePath);
#if DEBUG
            if (!this.isReactive)
            {
                this.sc = new Scanner(this.inFilePath);
            }
            else
            {
                this.sc = new Scanner();
            }
#else
            this.sc = new Scanner();
#endif
        }
        static void Main(string[] args)
        {
            using (var mainClass = new MainClass())
            {
                mainClass.Solve();
            }
        }

        public void Dispose()
        {
            if (this.sc != null)
            {
                this.sc.Dispose();
                this.sc = null;
            }
            if (this.wr != null)
            {
                this.wr.Dispose();
                this.wr = null;
            }
        }

        void MakeTestCase()
        {
            Random rand = new Random();
            if (this.wr != null)
            {
                this.wr.Dispose();
            }
            this.wr = new Writer(inFilePath);


        }

        void Solve()
        {
            int N = sc.NextInt;
            int M = sc.NextInt;
            if (N > M + 1)
            {
                wr.WriteLine("NO");
            }
            else
            {
                int[] a = Enumerable.Range(0, N).ToArray();
                for (int i = 0; i + 1 < N; i += 2)
                {
                    int tmp = a[i];
                    a[i] = a[i + 1];
                    a[i + 1] = tmp;
                }
                List<Edge> es = new List<Edge>();
                for (int i = 0; i < N - 1; i++)
                {
                    es.Add(new Edge(i, i + 1));
                }
                for (int i = 1; i < N && es.Count < M; i += 2)
                {
                    for (int j = i + 3; j < N && es.Count < M; j += 2)
                    {
                        es.Add(new Edge(i, j));
                    }
                }
                if (es.Count >= M)
                {
                    wr.WriteLine("YES");
                    wr.WriteLine(string.Join(" ", a.Select(e => (e + 1).ToString())));
                    for (int i = 0; i < M; i++)
                    {
                        wr.WriteLine((es[i].u + 1) + " " + (es[i].v + 1));
                    }
                }
                else
                {
                    wr.WriteLine("NO");
                }
            }
        }

        class Edge
        {
            public int u;
            public int v;
            public Edge(int u, int v)
            {
                this.u = u;
                this.v = v;
            }
        }

        bool isReactive = false; // TODO: reactive check !!
    }

    class Writer : IDisposable
    {
        private System.IO.TextWriter writer;
        private StringBuilder sb;
        private bool isReactive;
        public Writer(string path) 
            : this(new System.IO.StreamWriter(path))
        {
        }
        public Writer(bool isReactive) 
            : this(null, isReactive)
        {
        }
        public Writer(System.IO.TextWriter writer = null,
                        bool isReactive = false)
        {
            this.writer = (writer ?? Console.Out);
            this.isReactive = isReactive;
            if (!this.isReactive)
            {
                this.sb = new StringBuilder();
            }
        }
        public void Dispose()
        {
            if (!this.isReactive)
            {
                this.writer.Write(sb.ToString());
            }
            if (!this.writer.Equals(Console.Out))
            {
                this.writer.Dispose();
            }
        }
        public void Write(object val)
        {
            if (this.isReactive)
            {
                this.writer.Write(val.ToString());
                this.writer.Flush();
            }
            else
            {
                this.sb.Append(val.ToString());
            }
        }
        public void Write(string format, params object[] vals)
        {
            if (this.isReactive)
            {
                this.writer.Write(format, vals);
                this.writer.Flush();
            }
            else
            {
                this.sb.AppendFormat(format, vals);
            }
        }
        public void WriteLine(object val = null)
        {
            this.Write((val ?? string.Empty).ToString() + System.Environment.NewLine);
        }
        public void WriteLine(int val)
        {
            this.WriteLine(val.ToString());
        }
        public void WriteLine(long val)
        {
            this.WriteLine(val.ToString());
        }
        public void WriteLine(string val)
        {
            this.WriteLine((object)val);
        }
        public void WriteLine(string format, params object[] vals)
        {
            this.Write(format + System.Environment.NewLine, vals);
        }
    }

    class Scanner : IDisposable
    {
        private Queue<string> buffer;
        private char[] sep;
        private System.IO.TextReader reader;
        public Scanner(string path, char[] sep = null) 
            : this(new System.IO.StreamReader(path), sep)
        {
        }
        public Scanner(System.IO.TextReader reader = null,
                        char[] sep = null)
        {
            this.buffer = new Queue<string>();
            this.sep = (sep ?? new char[] { ' ' });
            this.reader = (reader ?? Console.In);
        }
        private void CheckBuffer()
        {
            if (this.buffer.Count == 0)
            {
                string str = string.Empty;
                for (; string.IsNullOrEmpty(str);
                    str = this.reader.ReadLine()) ;

                str.Split(this.sep).ToList()
                   .ForEach(el => this.buffer.Enqueue(el));
            }
        }

        public void Dispose()
        {
            if (!this.reader.Equals(Console.In))
            {
                this.reader.Dispose();
            }
        }

        public string Next
        {
            get
            {
                this.CheckBuffer();
                return this.buffer.Dequeue();
            }
        }
        public string[] GetStringArray(int N)
        {
            return Enumerable.Range(0, N)
                             .Select(e => this.Next)
                             .ToArray();
        }

        public int NextInt
        {
            get
            {
                return int.Parse(this.Next);
            }
        }
        public int[] GetIntArray(int N)
        {
            return Enumerable.Range(0, N)
                             .Select(e => this.NextInt)
                             .ToArray();
        }

        public double NextDouble
        {
            get
            {
                return double.Parse(this.Next);
            }
        }
        public double[] GetdoubleArray(int N)
        {
            return Enumerable.Range(0, N)
                             .Select(e => this.NextDouble)
                             .ToArray();
        }

        public long NextLong
        {
            get
            {
                return long.Parse(this.Next);
            }
        }
        public long[] GetLongArray(int N)
        {
            return Enumerable.Range(0, N)
                             .Select(e => this.NextLong)
                             .ToArray();
        }

        public bool IsEnd
        {
            get
            {
                this.CheckBuffer();
                return this.buffer.Count == 0;
            }
        }
    }
}
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