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Search in Rotated Sorted Array II
Follow up for "Search in Rotated Sorted Array":What ifduplicatesare allowed?Would this affect the run-time complexity? How and why?Write a function to...
分类:其他好文   时间:2014-12-03 22:50:41    阅读次数:137
【LeetCode】Sort List
题目 Sort a linked list in O(n log n) time using constant space complexity. 解答 O(nlogn)时间复杂度的排序有快排、堆排、归并,一般双向链表用快排、单向链表用归并,堆排两种都可以,以下使用归并排序: /** * Definition for singly-linked list. * class Li...
分类:其他好文   时间:2014-12-03 21:32:25    阅读次数:138
【Leetcode】Sort List解答
一、原题 Sort List   Sort a linked list in O(n log n) time using constant space complexity. 二、分析 快速排序和归并排序的时间复杂度是O(nlogn)。如果使用归并排序,在使用链表的情况下,不需要重新申请空间存放排序后的数组,可以做到空间复杂度数O(1)。我在这里使用归并排序来排序链表...
分类:其他好文   时间:2014-12-03 21:28:07    阅读次数:112
Single Number
Given an array of integers, every element appearstwiceexcept for one. Find that single one.Note:Your algorithm should have a linear runtime complexity...
分类:其他好文   时间:2014-12-03 14:01:20    阅读次数:181
Sort List
Sort a linked list inO(nlogn) time using constant space complexity./** * Definition for singly-linked list. * struct ListNode { * int val; * L...
分类:其他好文   时间:2014-12-03 12:12:42    阅读次数:188
Median of Two Sorted Arrays
题目描述: 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 sho....
分类:其他好文   时间:2014-12-02 18:57:38    阅读次数:213
Median of Two Sorted Arrays
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 ...
分类:其他好文   时间:2014-11-30 19:56:07    阅读次数:103
(每日算法)LeetCode---Minimum Window Substring (最小子串窗口)
Given a string S and a string T, find the minimum window in S which will contain all the characters in T in complexity O(n). For example, S = "ADOBECODEBANC" T = "ABC" Minimum window is "BAN...
分类:编程语言   时间:2014-11-30 10:22:33    阅读次数:241
LeetCode: Sort List 解题报告
Sort ListSort a linked list in O(n log n) time using constant space complexity.使用Merge Sort, 空间复杂度是 O(logN) 因为使用了栈空间。SOLUTION 1:使用Merge Sort来解决问题。为什么不...
分类:其他好文   时间:2014-11-29 21:28:58    阅读次数:203
[LeetCode] Single Number 单独的数字
Given an array of integers, every element appearstwiceexcept for one. Find that single one.Note:Your algorithm should have a linear runtime complexity...
分类:其他好文   时间:2014-11-29 14:30:53    阅读次数:108
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