public void findmaxlenprodHappyTest2()
        {
            maxwordlenthprod MLP = new maxwordlenthprod();

            MLP.findmaxlenprod(new string[] { "a", "ab", "abc", "d", "cd", "bcd", "abcd" }).Should().Be(4);
        }
        public void findmaxlenprodwithCommonLettersinAllWords()
        {
            maxwordlenthprod MLP = new maxwordlenthprod();

            MLP.findmaxlenprod(new string[] { "a", "aa", "aaa", "aaaa" }).Should().Be(0);
        }
        public void findmaxlenprodHappyTest1()
        {
            maxwordlenthprod MLP = new maxwordlenthprod();

            MLP.findmaxlenprod(new string[] { "abcw", "baz", "foo", "bar", "xtfn", "abcdef" }).Should().Be(16);
        }