namespace 解猜谜结果游戏
{
    class Program
    {
        static string[] winers = new string[5];//一百米、二百米、跳高、跳远和铅球
        static List<string> nameList = new List<string> { "甲", "乙", "丙", "丁", "戊" };
        static int count = 0;
        static void Main(string[] args)
        {
            GetAllPossibleItem(winers,nameList);
            Console.ReadLine();
        }

        private static void GetAllPossibleItem(string[] winers, List<string> nameList,int index=0)
        {
            if (index == winers.Length)
            {
                if (Test(winers))
                {
                    Console.WriteLine("第{0}种符合要求的可能情况：{1}", ++count,string.Join(",", winers));
                }
                return;
            }
            for (int i = 0, len = nameList.Count; i < len;i++ )
            {
                string name = nameList[i];
                winers[index] = name;
                var newNameList = string.Join(",", nameList).Split(',').ToList();
                newNameList.RemoveAt(i);
                GetAllPossibleItem(winers, newNameList, index + 1);               
            }
        }
        /// <summary>
        /// 数据是否同时满足所有要求
        /// </summary>
        /// <param name="winers">数据</param>
        /// <returns>true，符合要求，false，不符合要求</returns>
        private static bool Test(string[] winers)
        {
            if (TestA(winers)&&TestB(winers)&&TestC(winers)&&TestD(winers))
            {
                return true;
            }
            return false;
        }
        /// <summary>
        /// A说：“乙获得铅球冠军，丁获得跳高冠军”
        /// </summary>
        /// <returns>true，符合要求，false，不符合要求</returns>
        private static bool TestA(string[] winers)
        {
            bool a =winers[4] == "乙";
            bool b =winers[2] == "丁";
            return OneTrueOneFalse(a, b);
        }
        /// <summary>
        /// B说：“甲获得一百米冠军，戊获得跳远冠军”
        /// </summary>
        /// <returns>true，符合要求，false，不符合要求</returns>
        private static bool TestB(string[] winers)
        {
            bool a = winers[0] == "甲";
            bool b = winers[3] == "戊";
            return OneTrueOneFalse(a, b);
        }
        /// <summary>
        /// C说：“丙获得跳远冠军，丁获得二百米冠军”
        /// </summary>
        /// <returns>true，符合要求，false，不符合要求</returns>
        private static bool TestC(string[] winers)
        {
            bool a = winers[3] == "丙";
            bool b = winers[1] == "丁";
            return OneTrueOneFalse(a, b);
        }
        /// <summary>
        /// D说：“乙获得跳高冠军，戊获得铅球冠军”
        /// </summary>
        /// <returns>true，符合要求，false，不符合要求</returns>
        private static bool TestD(string[] winers)
        {
            bool a = winers[4] == "戊";
            bool b = winers[2] == "乙";
            return OneTrueOneFalse(a, b);
        }
        /// <summary>
        /// 是否符合每个人的描述都对一句，错一句
        /// </summary>
        /// <param name="a">第一句真假</param>
        /// <param name="b">第二句真假</param>
        /// <returns>true，符合要求，false，不符合要求</returns>
        private static bool OneTrueOneFalse(bool a,bool b)
        {
            if (a && !b) return true;
            if (b && !a) return true;
            return false;
        }
    }
}