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leetcode 题解 || Swap Nodes in Pairs 问题
problem: 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. Your algorithm should use only constant spa...
分类:其他好文   时间:2015-03-20 18:37:47    阅读次数:123
【LeetCode】Swap Nodes in Pairs 链表指针的应用
题目:swap nodes in pairs /** * LeetCode Swap Nodes in Pairs * 题目:输入一个链表,要求将链表每相邻的两个节点交换位置后输出 * 思路:遍历一遍即可,时间复杂度O(n) * Definition for singly-linked list. * public class ListNode { * int val; ...
分类:其他好文   时间:2015-03-20 14:29:30    阅读次数:113
HackerRank - Insertion Sort Advanced Analysis
"How many inverted pairs" - that usually ends up with MergeSort solution (of course there are other solutions out there)def mergeSort(arr): if len(...
分类:其他好文   时间:2015-03-18 06:27:46    阅读次数:94
leetcode------Swap Nodes in Pairs
标题:Swap Nodes in Pairs通过率:32.5难度:中等Given a linked list, swap every two adjacent nodes and return its head.For example,Given1->2->3->4, you should retu...
分类:其他好文   时间:2015-03-12 23:58:02    阅读次数:255
Minimum Inversion Number
DescriptionThe inversion number of a given number sequence a1, a2, ..., an is the number of pairs (ai, aj) that satisfy i aj.For a given sequence of ....
分类:其他好文   时间:2015-03-11 16:58:40    阅读次数:143
Lonely Integer
There areNintegers in an arrayA. All but one integer occur in pairs. Your task is to find the number that occurs only once.Sample Input:231 1 2Sample ...
分类:其他好文   时间:2015-03-10 19:14:54    阅读次数:152
LeetCode | #24 Swap Nodes in Pairs
题目: 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. Your algorithm should use only constant...
分类:其他好文   时间:2015-03-09 20:58:23    阅读次数:129
Sweet Snippet 系列之 Lua表排序
??   作为Lua中实现各类数据结构的基石,表的使用想必是贯穿于整个项目的开发过程之中,其中对表内容的排序想必亦是常见的需求之一,Lua内置的Table函数库便提供了sort函数来实现这项功能,但是仅能支持表中数组部分内容的排序,而想要排序表中哈希部分的内容,简单的一个方法就是另写一个迭代器来支持: function order_pairs(tbl) local name...
分类:编程语言   时间:2015-03-08 21:37:49    阅读次数:212
Swap Nodes in Pairs
Swap Nodes in Pairs问题:Given a linked list, swap every two adjacent nodes and return its head.For example,Given1->2->3->4, you should return the list a...
分类:其他好文   时间:2015-03-07 11:30:58    阅读次数:119
[LeetCode] 024. Swap Nodes in Pairs (Medium) (C++/Python)
[LeetCode] 024. Swap Nodes in Pairs (Medium) (C++/Python)...
分类:编程语言   时间:2015-03-05 14:45:05    阅读次数:152
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