Submission #319645

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Source Code Expand

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using sc = Scanner;

class Program
{
    static Tuple<string, double, string>[] dataSet;

    static void Main(string[] args)
    {
        int N = sc.NextInt();
        int M = sc.NextInt();
        if (N > 5001)
        {
            Console.WriteLine("GiveUp!");
            return;
        }
        int[] f = new int[N];
        int[] DP = new int[N+1];
        DP[0] = 1;
        for (int i = 0; i < N; i++)
        {
            f[i] = sc.NextInt();
        }
        for (int i = 0; i < N; i++)
        {
            HashSet<int> notDaburi = new HashSet<int>();
            for (int j = i; j < N; j++)
            {
                if (!notDaburi.Contains(f[j]))
                {
                    notDaburi.Add(f[j]);
                    DP[j + 1] = (DP[j+1] + DP[i]) % 1000000007;
                }
                else
                    break;
            }
        }
        Console.WriteLine(DP[N]);
    }

}




public static class Scanner
{
    public static string NextString()
    {
        string tmp = "";
        while (true)
        {
            string readData = char.ConvertFromUtf32(Console.Read());
            if (readData == " " || readData == "\n")
                break;
            tmp += readData;
        }
        return tmp;
    }

    public static string[] NextStrArray()
    {
        return Console.ReadLine().Split(' ');
    }

    public static long[] NextLongArray()
    {
        string[] s = NextStrArray();
        long[] a = new long[s.Length];
        for (int i = 0; i < a.Length; i++)
        {
            a[i] = long.Parse(s[i]);
        }
        return a;
    }
    public static int[] NextIntArray()
    {

        string[] s = NextStrArray();
        int[] a = new int[s.Length];
        for (int i = 0; i < a.Length; i++)
        {
            a[i] = int.Parse(s[i]);
        }
        return a;
    }
    public static int NextInt()
    {
        string tmp = "";
        while (true)
        {
            string readData = char.ConvertFromUtf32(Console.Read());
            if (readData == " " || readData == "\n")
                break;
        
            tmp += readData;
        }
        return int.Parse(tmp);
    }
    public static double NextDouble()
    {
        string tmp = "";
        while (true)
        {
            string readData = char.ConvertFromUtf32(Console.Read());
            if (readData == " " || readData == "\n")
                break;
            tmp += readData;
        }
        return double.Parse(tmp);
    }
    public static long NextLong()
    {
        string tmp = "";
        while (true)
        {
            string readData = char.ConvertFromUtf32(Console.Read());
            if (readData == " " || readData == "\n")
                break;
            tmp += readData;
        }
        return long.Parse(tmp);
    }
    public static double[] NextDoubleArray()
    {
        string[] s = NextStrArray();
        double[] a = new double[s.Length];
        for (int i = 0; i < a.Length; i++)
        {
            a[i] = double.Parse(s[i]);
        }
        return a;
    }
}

Submission Info

Judge Result