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LeetCode--Convert Sorted List to Binary Search Tree
Given an array where elements are sorted in ascending order, convert it to a height balanced BST. /** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *nex...
分类:其他好文   时间:2015-01-14 15:33:27    阅读次数:169
[leetcode]23 Merge k Sorted Lists
问题描述: Merge k sorted linked lists and return it as one sorted list. Analyze and describe its complexity. 代码: public ListNode mergeTwoLists(ListNode l1, ListNode l2) { //java if(l2 == nu...
分类:其他好文   时间:2015-01-13 21:34:54    阅读次数:193
Sort List
Sort a linked list in O(n log n) time using constant space complexity. #include #include typedef struct ListNode{ int val; struct ListNode *next; }ListNode; ListNode *mergesort(ListNode *...
分类:其他好文   时间:2015-01-13 17:42:46    阅读次数:113
【leetcode】Merge k Sorted Lists
Merge k Sorted ListsMergeksorted linked lists and return it as one sorted list. Analyze and describe its complexity.采用优先队列priority_queue把ListNode放入优先队...
分类:其他好文   时间:2015-01-12 23:57:44    阅读次数:266
【leetcode】Merge k Sorted Lists
Mergeksorted linked lists and return it as one sorted list. Analyze and describe its complexity.思路:我自己的,每次找k个元素的最小的接在答案链表的后面。结果超时了。 ListNode *merge...
分类:其他好文   时间:2015-01-12 23:44:13    阅读次数:249
链表中倒数第k个结点
问题从1开始计数,计算倒数第k个结点的指针。例如:思路整着数到第k,然后前后一块往后走,前边的走到头,后边的极为倒数第k个结点,图示注意传入空指针k大于结点的个数代码ListNode* LastNNode(ListNode *root, int n){ if (root == NULL || ...
分类:其他好文   时间:2015-01-10 21:01:26    阅读次数:192
华为机试—逆序链表输出
题目描述:    将输入的一个单向链表,逆序后输出链表中的值。链表定义如下:  typedef struct tagListNode  {        int value;        struct tagListNode *next;  }ListNode;    要求实现函数:    void converse(ListNode **head);  【输入】head: ...
分类:其他好文   时间:2015-01-10 01:30:56    阅读次数:203
[LeetCode]160 Intersection of Two Linked Lists
https://oj.leetcode.com/problemset/algorithms/http://www.cnblogs.com/yuzhangcmu/p/4128794.html/** *Definitionforsingly-linkedlist. *publicclassListNode{ *intval; *ListNodenext; *ListNode(intx){ *val=x; *next=null; *} *} */ publicclassSolution{ //Assumehead..
分类:其他好文   时间:2015-01-09 19:34:00    阅读次数:143
LeetCode--Merge k Sorted Lists
Merge k sorted linked lists and return it as one sorted list. Analyze and describe its complexity. /** * Definition for singly-linked list. * struct ListNode { * int val; * ListNode *ne...
分类:其他好文   时间:2015-01-09 09:16:33    阅读次数:136
[LeetCode]141 Linked List Cycle
https://oj.leetcode.com/problems/linked-list-cycle/http://blog.csdn.net/linhuanmars/article/details/21200601/** *Definitionforsingly-linkedlist. *classListNode{ *intval; *ListNodenext; *ListNode(intx){ *val=x; *next=null; *} *} */ publicclassSolution{ publi..
分类:其他好文   时间:2015-01-09 01:52:33    阅读次数:155
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