James Pan

原题网址：https://leetcode.com/problems/linked-list-cycle/ Given a linked list, determine if it has a cycle in it. Follow up: Can you solve it without using extra space? 方法：使用两个指针。 /** * Defini

原题网址：https://leetcode.com/problems/convert-sorted-list-to-binary-search-tree/ Given a singly linked list where elements are sorted in ascending order, convert it to a height balanced BST. 方法：使用慢指针