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** Median of Two Sorted Arrays
There are two sorted arrays nums1 and nums2 of size m and n respectively. Find the median of the two sorted arrays. The overall run time complexity sh
分类:其他好文   时间:2016-01-28 02:02:21    阅读次数:132
Merge K Sorted Lists -- LeetCode
Mergeksorted linked lists and return it as one sorted list. Analyze and describe its complexity.思路:构建一个大小为K的小顶堆。每次从堆顶取走一个元素后,都将这个元素所属的链表中下一个元素加入堆中。若没有...
分类:其他好文   时间:2016-01-27 09:14:47    阅读次数:142
Java [Leetcode 172]Factorial Trailing Zeroes
题目描述:Given an integern, return the number of trailing zeroes inn!.Note:Your solution should be in logarithmic time complexity.解题思路:对于阶乘而言,也就是1*2*3*......
分类:编程语言   时间:2016-01-24 22:20:58    阅读次数:215
Common Element in Two Sorted Sets
There are 2 sorted sets.Find the common elements of those setse.g.A={1,2,3,4,5,6}B={5,6,7,8,9}o/p C={5,6}Complexity should ne 0(n+m) where n and m is ...
分类:其他好文   时间:2016-01-24 06:57:54    阅读次数:176
LeetCode 172 Factorial Trailing Zeroes(阶乘后的零)(*)
翻译给定一个整型n,返回n!后面的零的个数。注意:你的解决方案应该在log时间复杂度内。原文Given an integer n, return the number of trailing zeroes in n!.Note: Your solution should be in logarithmic time complexity.分析起初我看题目的时候没太注意,还以为就是求n这个数后面的零而...
分类:其他好文   时间:2016-01-23 13:16:47    阅读次数:263
Count the number of occurrences in a sorted array
Given a sorted array arr[] and a number x, write a function that counts the occurrences of x in arr[]. Expected time complexity is O(Logn)Examples: I....
分类:其他好文   时间:2016-01-23 07:56:01    阅读次数:134
【LeetCode OJ 34】Search for a Range
题目链接:https://leetcode.com/problems/search-for-a-range/ 题目:Given a sorted array of integers, find the starting and ending position of a given target value. Your algorithm's runtime complexity must ...
分类:其他好文   时间:2016-01-21 13:52:47    阅读次数:143
Lintcode 14 First Position of Target
Q:For a given sorted array (ascending order) and atargetnumber, find the first index of this number inO(log n)time complexity.If the target number doe...
分类:其他好文   时间:2016-01-20 20:43:44    阅读次数:220
HashMap VS BST
HashMap usually performs search operations bounded with complexity of O(1)<=T(n)<=O(n). BST performs search operations in O(logN)<=T(n)<=O(N).HashMap ...
分类:其他好文   时间:2016-01-19 23:39:28    阅读次数:214
Single Number leetcode
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:2016-01-19 21:04:35    阅读次数:189
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