题目:
Merge k sorted
linked lists and return it as one sorted list. Analyze and describe its complexity.
思路:
解法一:维护一个大小为k的堆,每次去堆顶的最小元素放到结果中,然后读取该元素的下一个元素放入堆中,重新维护好。因为每个链表是有序的,每次又是去当前k个元素中最小的,...
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其他好文 时间:
2015-03-09 22:32:10
阅读次数:
203
题目链接:https://leetcode.com/problems/merge-two-sorted-lists/
题目: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 first
two ...
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其他好文 时间:
2015-03-09 11:05:29
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134
题目链接:https://leetcode.com/problems/intersection-of-two-linked-lists/
题目:
Write a program to find the node at which the intersection of two singly linked lists begins.
For example, the followi...
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其他好文 时间:
2015-03-09 11:05:15
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145
标题:Add Two Numbers通过率:22.6%难度:中等You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each ...
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其他好文 时间:
2015-03-08 21:19:22
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123
存在两个单向链表,如果两者在某个节点相交合并,则返回交点,不相交则返回null。 思路:如果两个链表长度相等,则两个指针依次前进,到结尾之前如果遇到val值相等,则返回该节点。如果不相等,则长的那个链表先走若干步,使得剩下的步数与短的链表的步数相同。 注意点 空指针 由于是单链表,需要保存链表头 c...
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其他好文 时间:
2015-03-08 11:35:39
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119
You are given two linked lists representing two non-negative numbers. The digits are stored in reverse order and each of their nodes contain a single ...
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其他好文 时间:
2015-03-08 00:02:05
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193
Merge Two Sorted Lists问题: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 ...
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其他好文 时间:
2015-03-06 18:31:18
阅读次数:
123
1、Apache NutchApache Nutch是一个用于网络搜索的开源框架,它提供了我们运行自己的搜索引擎所需的全部工具,包括全文搜索和Web爬虫。1.1、Nutch的组件结构WebDB:存储网页数据和连接信息Fetch lists:将WebDB所存储的连接分成多个组,来用于分布式检索Fetc...
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其他好文 时间:
2015-03-06 15:51:23
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143
编程之美上有这题,先计算这两链表的长度,然后从这两链表长度相等处扫一遍,找到相同节点就跳出即可。O(n)的时间复杂度 O(1)的空间开销/** * Definition for singly-linked list. * struct ListNode { * int val; * ...
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其他好文 时间:
2015-03-05 23:39:24
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196
https://oj.leetcode.com/problems/intersection-of-two-linked-lists/Write a program to find the node at which the intersection of two singly linked list...
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其他好文 时间:
2015-03-05 20:53:54
阅读次数:
141