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Leetcode-Flatten Binary Tree to Linked List
Given a binary tree, flatten it to a linked list in-place. For example,Given 1 / \ 2 5 / \ \ 3 4 6The flattened ...
分类:其他好文   时间:2014-11-08 13:25:14    阅读次数:119
sort list (7)
Sort a linked list in O(n log n) time using constant space complexity.解决这个问题让我很是纠结,能不能用快速排序呢?我试了很多次,结果总是超时,甚至在用系统自带的stl时也是这样。为什么呢?事后想想,快速排序没有充分利用链表的连贯...
分类:其他好文   时间:2014-11-08 13:20:59    阅读次数:245
Remove Duplicates from Sorted List
这次是做题最顺的一次,提交两次,耗时1分钟就ac了,错的那次是因为没有考虑到空链表,少了一个判断。/** * Definition for singly-linked list. * public class ListNode { * int val; * ListNode next...
分类:其他好文   时间:2014-11-08 07:04:13    阅读次数:152
【LeetCode】Remove Nth Node From End of List (2 solutions)
Remove Nth Node From End of ListGiven a linked list, remove thenthnode from the end of list and return its head.For example, Given linked list: 1->2.....
分类:其他好文   时间:2014-11-06 21:49:31    阅读次数:217
Remove Duplicates from Sorted List (链表)
Given a sorted linked list, delete all duplicates such that each element appear onlyonce.For example,Given1->1->2, return1->2.Given1->1->2->3->3, retu...
分类:其他好文   时间:2014-11-06 19:29:56    阅读次数:149
Remove Nth Node From End of List(链表)
Given a linked list, remove thenthnode from the end of list and return its head.For example, Given linked list: 1->2->3->4->5, and n = 2. After re...
分类:其他好文   时间:2014-11-06 16:45:28    阅读次数:111
LeetCode Partition List
Given a linked list and a valuex, partition it such that all nodes less thanxcome before nodes greater than or equal tox.You should preserve the origi...
分类:其他好文   时间:2014-11-06 14:30:36    阅读次数:151
LeetCode算法编程之连载三
1、题目 - Linked List Cycle IIGiven a linked list, return the node where the cycle begins. If there is no cycle, return null.Follow up:Can you solve it w...
分类:编程语言   时间:2014-11-06 01:56:43    阅读次数:221
leetcode Remove Nth Node From End of List
Given a linked list, remove thenthnode from the end of list and return its head.For example, Given linked list: 1->2->3->4->5, and n = 2. After re...
分类:其他好文   时间:2014-11-05 08:04:14    阅读次数:177
LeetCode[Linked List]: Remove Duplicates from Sorted List II
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->3->3->4->4->5, return 1->2->5. Given 1...
分类:其他好文   时间:2014-11-04 22:55:40    阅读次数:300
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