public void Example3()
        {
            var sol = new PermutationInString();

            Assert.IsTrue(sol.CheckInclusion("adc", "dcda"));

            Assert.IsFalse(sol.CheckInclusion("adc", "dcdx"));
        }
        public void Example4()
        {
            var sol = new PermutationInString();

            Assert.IsTrue(sol.CheckInclusion("a", "a"));

            Assert.IsFalse(sol.CheckInclusion("a", "b"));
        }
        public void Example1()
        {
            var sol = new PermutationInString();

            Assert.IsTrue(sol.CheckInclusion("ab", "eidbaooo"));
        }
        public void Example2()
        {
            var sol = new PermutationInString();

            Assert.IsFalse(sol.CheckInclusion("ab", "eidboaoo"));
        }