結果

問題 No.118 門松列(2)
ユーザー sekiya9311sekiya9311
提出日時 2017-10-19 22:56:14
言語 C#(csc)
(csc 3.9.0)
結果
AC  
実行時間 109 ms / 5,000 ms
コード長 6,089 bytes
コンパイル時間 5,270 ms
コンパイル使用メモリ 110,732 KB
実行使用メモリ 32,756 KB
最終ジャッジ日時 2023-08-13 12:45:20
合計ジャッジ時間 9,165 ms
ジャッジサーバーID
（参考情報） 		judge15 / judge11
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 82 ms
22,544 KB
testcase_01 AC 109 ms
30,712 KB
testcase_02 AC 106 ms
30,544 KB
testcase_03 AC 108 ms
30,684 KB
testcase_04 AC 108 ms
30,676 KB
testcase_05 AC 108 ms
32,756 KB
testcase_06 AC 73 ms
21,844 KB
testcase_07 AC 72 ms
21,860 KB
testcase_08 AC 72 ms
21,944 KB
testcase_09 AC 107 ms
30,500 KB
testcase_10 AC 86 ms
23,276 KB
testcase_11 AC 88 ms
21,456 KB
testcase_12 AC 84 ms
23,132 KB
testcase_13 AC 83 ms
22,776 KB
testcase_14 AC 107 ms
32,268 KB
testcase_15 AC 82 ms
24,216 KB
testcase_16 AC 95 ms
27,520 KB
testcase_17 AC 83 ms
22,848 KB
testcase_18 AC 88 ms
25,484 KB
testcase_19 AC 95 ms
25,052 KB
testcase_20 AC 94 ms
25,212 KB
testcase_21 AC 102 ms
29,496 KB
testcase_22 AC 86 ms
23,252 KB
testcase_23 AC 101 ms
31,400 KB
testcase_24 AC 88 ms
26,028 KB
testcase_25 AC 92 ms
25,068 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";
        }
        static void Main(string[] args)
        {
            using (var mainClass = new MainClass())
            {
                //mainClass.MakeTestCase();
                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();
            this.wr = new Writer(inFilePath);


        }

        void Solve()
        {
            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

            int n = sc.NextInt;
            long[] a = new long[n].Select(el => sc.NextLong).ToArray();
            long[] cnt = new long[111];
            foreach (long e in a)
            {
                cnt[e]++;
            }
            long ans = 0;
            for (int i = 0; i < 111; i++)
            {
                for (int k = i + 1; k < 111; k++)
                {
                    for (int j = i + 1; j < k; j++)
                    {
                        long val = cnt[i] * cnt[j] * cnt[k] % MOD;
                        ans += val;
                        ans %= MOD;
                    }
                }
            }
            wr.WriteLine(ans);
        }

        const long MOD = (long)1e9 + 7;
        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)
        {
            this.Write(val.ToString() + System.Environment.NewLine);
        }
        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) : this(new System.IO.StreamReader(path))
        {
        }
        public Scanner(System.IO.TextReader reader = null)
        {
            this.buffer = new Queue<string>();
            this.sep = new char[] { ' ' };
            this.reader = (reader ?? Console.In);
        }
        private void CheckBuffer()
        {
            if (this.buffer.Count == 0)
            {
                string str = string.Empty;
                while (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 int NextInt
        {
            get
            {
                return int.Parse(this.Next);
            }
        }
        public double NextDouble
        {
            get
            {
                return double.Parse(this.Next);
            }
        }

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