tree de7abef707b7b45fabc5ee2aeac4e1de48cfeb79
parent 45be369df9c9d4d93680797c4543a7d234f81805
author hadirkhan10 <hadirkhan10@gmail.com> 1640155446 -0800
committer hadirkhan10 <hadirkhan10@gmail.com> 1640155446 -0800

added more test cases and made the test self-checking