本次主题是leetcode141、142环形链表的解法;
How hashSet and its methods work
Let’s start with a leetcode problem:
SamuraiY_test
This is the first blog,the following text is for test;
We’re not here because we’re free. We’re here because we are not free.
There’s no escaping reason, no denying purpose. Because, as we both know, without purpose, we would not exist.