Renzhouzhou的博客

问题：https://leetcode.com/problems/linked-list-cycle/ Given a linked list, determine if it has a cycle in it. 分析：如果无环，遍历链表将会走到NULL的位置。如果有环，用两个指针，fast和slow。fast一次走两步，slow一次走一步。fast先出发，slow后出发。再把slow看成在前

问题：https://leetcode.com/problems/delete-node-in-a-linked-list/ Write a function to delete a node (except the tail) in a singly linked list, given only access to that node.Supposed the linked list is 1

问题：https://leetcode.com/problems/swap-nodes-in-pairs/ Given a linked list, swap every two adjacent nodes and return its head. For example,Given 1->2->3->4, you should return the list as 2->1->4->3.

问题： https://leetcode.com/problems/reverse-linked-list/?tab=Description Reverse a singly linked list.反转一个单向链表。 参考C++代码：/** * Definition for singly-linked list. * struct ListNode { * int val;

问题： https://leetcode.com/problems/remove-linked-list-elements/?tab=Description Remove all elements from a linked list of integers that have value val. 删除值为val的元素。 Example： Given: 1 –> 2 –> 6 –> 3 –

问题： https://leetcode.com/problems/merge-two-sorted-lists/?tab=Description Merge two sorted linked lists and return it as a new list. The new list should be made by splicing together the nodes of the

问题： https://leetcode.com/problems/remove-duplicates-from-sorted-list/?tab=Description Given a sorted linked list, delete all duplicates such that each element appear only once. For example, Given