摘要： Given a sorted linked list, delete all nodes that have duplicate numbers, leaving only distinct numbers from the original list. For example,Given 1->2 阅读全文

摘要： Given a linked list and a value x, partition it such that all nodes less than x come before nodes greater than or equal to x. You should preserve the 阅读全文

摘要： Given a linked list, return the node where the cycle begins. If there is no cycle, return null. Note: Do not modify the linked list. Follow up:Can you 阅读全文

摘要： Sort a linked list in O(n log n) time using constant space complexity. 题目要求用 O(n log n)的时间复杂度和常数的空间复杂度来进行链表排序。 O(nlogn)的排序算法有堆排，快排，归并排序等，一开始我准备采用快排，后来 阅读全文