public void CountCharacters_1()
        {
            var solution = new _1160_FindWordsThatCanBeFormedByCharacters();
            var result   = solution.CountCharacters(new string[] { "cat", "bt", "hat", "tree" }, "atach");

            Assert.AreEqual(6, result);
        }
        public void CountCharacters_2()
        {
            var solution = new _1160_FindWordsThatCanBeFormedByCharacters();
            var result   = solution.CountCharacters(new string[] { "hello", "world", "leetcode" }, "welldonehoneyr");

            Assert.AreEqual(10, result);
        }