Submission #122853

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Source Code Expand

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

namespace Program
{
    class Program
    {
        static void Main(string[] args)
        {
            var rc = Array.ConvertAll(Console.ReadLine().Split(' '), new Converter<string, int>(s => int.Parse(s)));
            var xy = Array.ConvertAll(Console.ReadLine().Split(' '), new Converter<string, int>(s => int.Parse(s)));
            var dl = Array.ConvertAll(Console.ReadLine().Split(' '), new Converter<string, int>(s => int.Parse(s)));
            Console.WriteLine("{0}", (factorial(xy[0] * xy[1]) / (factorial(dl[0]) * factorial(dl[1]))) * ((rc[0] - xy[0] + 1) * (rc[1] - xy[1] + 1)) % 1000000007);
        }

        static long factorial(long n)
        {
            return n == 0 ? 1 : (factorial(n - 1) * n);
        }
    }
}

Submission Info

Judge Result