#293123 (C#(csc)) No.747 循環小数N桁目 Hard

提出ソース

結果

問題	No.747 循環小数N桁目 Hard
ユーザー	sekiya9311
提出日時	2018-10-19 23:19:50
言語	C#(csc) (csc 3.9.0)
結果	TLE
実行時間	-
コード長	7,926 bytes
コンパイル時間	1,244 ms
コンパイル使用メモリ	111,488 KB
実行使用メモリ	335,412 KB
最終ジャッジ日時	2024-04-29 17:02:37
合計ジャッジ時間	6,840 ms
ジャッジサーバーID （参考情報）	judge2 / judge1

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	38 ms 24,960 KB
testcase_01	AC	38 ms 19,456 KB
testcase_02	AC	38 ms 19,584 KB
testcase_03	AC	39 ms 19,456 KB
testcase_04	AC	37 ms 19,584 KB
testcase_05	AC	38 ms 19,584 KB
testcase_06	AC	40 ms 19,584 KB
testcase_07	AC	37 ms 19,712 KB
testcase_08	AC	38 ms 19,584 KB
testcase_09	AC	38 ms 19,328 KB
testcase_10	AC	38 ms 19,456 KB
testcase_11	AC	38 ms 19,584 KB
testcase_12	AC	39 ms 19,584 KB
testcase_13	AC	39 ms 19,584 KB
testcase_14	AC	39 ms 19,584 KB
testcase_15	AC	38 ms 19,456 KB
testcase_16	AC	38 ms 19,456 KB
testcase_17	AC	39 ms 19,584 KB
testcase_18	AC	39 ms 19,584 KB
testcase_19	AC	41 ms 19,584 KB
testcase_20	AC	39 ms 19,456 KB
testcase_21	AC	38 ms 19,456 KB
testcase_22	AC	39 ms 19,328 KB
testcase_23	AC	37 ms 19,584 KB
testcase_24	AC	38 ms 19,584 KB
testcase_25	AC	38 ms 19,456 KB
testcase_26	AC	39 ms 19,584 KB
testcase_27	AC	38 ms 19,712 KB
testcase_28	AC	39 ms 19,712 KB
testcase_29	AC	38 ms 19,456 KB
testcase_30	AC	39 ms 19,584 KB
testcase_31	AC	39 ms 19,584 KB
testcase_32	AC	38 ms 19,328 KB
testcase_33	TLE	-
testcase_34	--	-
testcase_35	--	-
testcase_36	--	-
testcase_37	--	-
testcase_38	--	-
testcase_39	--	-
testcase_40	--	-
testcase_41	--	-
testcase_42	--	-
testcase_43	--	-
testcase_44	--	-
testcase_45	--	-
testcase_46	--	-
testcase_47	--	-
testcase_48	--	-
testcase_49	--	-
testcase_50	--	-
testcase_51	--	-
testcase_52	--	-
testcase_53	--	-
testcase_54	--	-
testcase_55	--	-
testcase_56	--	-
testcase_57	--	-
testcase_58	--	-
testcase_59	--	-
testcase_60	--	-
testcase_61	--	-
testcase_62	--	-
testcase_63	--	-
testcase_64	--	-
testcase_65	--	-
testcase_66	--	-
testcase_67	--	-
testcase_68	--	-
testcase_69	--	-
testcase_70	--	-
testcase_71	--	-
testcase_72	--	-
testcase_73	--	-
testcase_74	--	-
testcase_75	--	-
testcase_76	--	-
testcase_77	--	-
testcase_78	--	-
testcase_79	--	-
testcase_80	--	-
testcase_81	--	-
testcase_82	--	-
testcase_83	--	-
testcase_84	--	-
testcase_85	--	-
testcase_86	--	-
testcase_87	--	-
testcase_88	--	-
testcase_89	--	-
testcase_90	--	-
testcase_91	--	-
testcase_92	--	-
testcase_93	--	-
testcase_94	--	-
testcase_95	--	-
testcase_96	--	-
testcase_97	--	-
testcase_98	--	-
testcase_99	--	-
testcase_100	--	-
testcase_101	--	-
testcase_102	--	-
testcase_103	--	-
testcase_104	--	-
testcase_105	--	-
testcase_106	--	-
testcase_107	--	-
testcase_108	--	-
testcase_109	--	-
testcase_110	--	-
testcase_111	--	-
testcase_112	--	-
testcase_113	--	-
testcase_114	--	-
testcase_115	--	-
testcase_116	--	-
testcase_117	--	-
testcase_118	--	-
testcase_119	--	-
testcase_120	--	-
testcase_121	--	-
testcase_122	--	-
testcase_123	--	-

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

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

raw source code

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

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

    class Scanner : IDisposable
    {
        private Queue<string> Buffer { get; }
        private char[] Sep { get; }
        private System.IO.TextReader Reader { get; }
        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 && this.Reader.Peek() != -1)
            {
                string str = string.Empty;
                for (; string.IsNullOrEmpty(str) || string.IsNullOrWhiteSpace(str);
                    str = this.Reader.ReadLine()) ;

                var strs = str.Split(this.Sep).Where(el => !(string.IsNullOrEmpty(el) || string.IsNullOrWhiteSpace(el)));
                foreach (var el in strs)
                {
                    this.Buffer.Enqueue(el);
                }
            }
        }

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

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

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

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

        public long NextLong()
        {
            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;
            }
        }
    }

    class MainClass : IDisposable
    {
        private Scanner Sc { get; }
        private Writer Wr { get; }
        static string BackPath { get; } = "..";
        private char DirSep { get; } = System.IO.Path.DirectorySeparatorChar;
        private string InFilePath { get; } = string.Empty;
        private string OutFilePath { get; } = string.Empty;
        public MainClass()
        {
            this.InFilePath = MainClass.BackPath
                            + this.DirSep
                            + MainClass.BackPath
                            + this.DirSep
                            + "in.txt";
            this.OutFilePath = MainClass.BackPath
                             + this.DirSep
                             + MainClass.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()
        {
            this.Sc?.Dispose();
            this.Wr?.Dispose();
#if DEBUG
            Console.WriteLine("press any key to continue...");
            Console.ReadKey();
#endif
        }

        int CalcMod(string val, int mod) 
            => val
            .Select(c => c - '0')
            .Cast<int>()
            .Aggregate((a, b) => (a * 10 + b) % mod);

        int PowMod(int a, System.Numerics.BigInteger p, int mod)
        {
            if (p == System.Numerics.BigInteger.One)
            {
                return a;
            }
            else if (p == System.Numerics.BigInteger.Zero)
            {
                return 1;
            }
            else
            {
                if (p.IsEven)
                {
                    var t = PowMod(a, p / 2, mod);
                    return t * t % mod;
                }
                else
                {
                    return a * PowMod(a, p - 1, mod) % mod;
                }
            }
        }

        void Solve()
        {
            string N = Sc.Next();
            string K = Sc.Next();
            const string V = "285714";
            int nMod = CalcMod(N, V.Length);
            var idx = (PowMod(nMod, System.Numerics.BigInteger.Parse(K), V.Length) - 1 + V.Length) % V.Length;
            Wr.WriteLine(V[idx].ToString());
        }

        private bool IsReactive { get; } = false; // TODO: reactive check !!
    }
}

yukicoder

結果

テストケース

コンパイルメッセージ

ソースコード