题目要求:Follow up for "Search in Rotated Sorted Array":What ifduplicatesare allowed?Would this affect the run-time complexity? How and why?Write a functi...
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其他好文 时间:
2015-03-09 20:36:53
阅读次数:
163
There are two sorted arrays A and B of size m and n respectively. Find the median of the two sorted arrays. The overall run time complexity should be ...
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其他好文 时间:
2015-03-09 15:52:47
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92
Sort a linked list inO(nlogn) time using constant space complexity.findMiddle: 将listnode 不停的拆分sort: 将拆分好的不同的sortmerge: 将sort好的,向上merge/** * Definition...
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其他好文 时间:
2015-03-08 07:50:33
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128
Merge k sorted linked lists and return it as one sorted list. Analyze and describe its complexity.
分支策略:每次归并两个已排好序的链表,直至只剩下一个链表。
public class Solution {
public ListNode mergeKLists(List list...
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其他好文 时间:
2015-03-05 19:33:56
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138
Sort a linked list in O(n log n)
time using constant space complexity.
链表排序,O(nlgn)的复杂度,应该是归并或者快排,对链表来说归并应该用起来更顺手一些,尤其是对归并的步骤来说,链表这种数据结构真是再合适不过了。这里我用了递归调用来实现归并步骤,效率可能略微低那么一点点,但是代码简洁得不得了哇~~
归并排序是分治...
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其他好文 时间:
2015-03-03 22:18:35
阅读次数:
160
转自http://www.cnblogs.com/gaochundong/p/complexity_of_algorithms.html为什么要进行算法分析?预测算法所需的资源计算时间(CPU 消耗)内存空间(RAM 消耗)通信时间(带宽消耗)预测算法的运行时间在给定输入规模时,所执行的基本操作数量...
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编程语言 时间:
2015-03-02 18:13:19
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220
Given an array of integers, every element appears twice except for one. Find that single one.
Note:
Your algorithm should have a linear runtime complexity. Could you implement it without using e...
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其他好文 时间:
2015-02-27 11:58:37
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169
Given an array of integers, every element appears three times except for one. Find that single one.
Note:
Your algorithm should have a linear runtime complexity. Could you implement it without u...
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其他好文 时间:
2015-02-26 18:33:18
阅读次数:
99
题目: Merge k sorted linked lists and return it as one sorted list. Analyze and describe its complexity. 题意: 将k个已排好序的链表合并为一个非下降排序的链表。 思路: 将每个链表的表头元素取出来,...
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其他好文 时间:
2015-02-26 11:24:57
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145
Given a sorted array of integers, find the starting and ending position of a given target value.
Your algorithm's runtime complexity must be in the order of O(log n).
If the target is not found ...
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其他好文 时间:
2015-02-25 21:10:33
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163