Submission #1575587

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Source Code Expand

using System;
using System.Linq;

namespace utpc2013_01
{
    class Program
    {
        static void Main(string[] args)
        {
            string s = Console.ReadLine();
            int[] ret = new int[4];
            for (int i = 0; i < 4; i++)
            {
                if (s[i] == 'A' || s[i] == 'D' || s[i] == 'O' || s[i] == 'P' || s[i] == 'Q' || s[i] == 'R')
                {
                    ret[i]++;
                }
                else if (s[i] == 'B') ret[i] = 2;
            }
            Console.WriteLine(ret.Sum() == 1 && ret[2] == 1 ? "yes" : "no");
        }
    }
}

Submission Info

Judge Result