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久邦数码(3G门户)面试
久邦数码(3G门户)面试 参考链接 "https://www.nowcoder.com/discuss/25780?type=2&order=0&pos=55&page=1" ...
分类:其他好文   时间:2018-12-16 19:35:46    阅读次数:127
数据库三个范式
Why one grouping of attributes into a relation schema may be better than another two levels we can discuss the goodness of relation schemas. logical(c ...
分类:数据库   时间:2018-12-02 01:23:14    阅读次数:237
Leetcode15 3Sum
开始的思路是,暴力解法,寻找每组的两个数O(N^2),然后找是否有第三个数,一共O(N^3)。 沿着这个思路,怎么降低复杂度呢? 开始的思路是,先排序,两个指针分别从两头往中间走,找第三个数,但是比如-3 -2 -1 -1 1 1 2 3,这个就无法判断下一个是应该左指针走还是右指针走,要递归了。 ...
分类:其他好文   时间:2018-11-26 00:19:40    阅读次数:152
Algorithms: Design and Analysis, Part 1 - Programming Assignment #1
自我总结: 1.编程的思维不够,虽然分析有哪些需要的函数,但是不能比较好的汇总整合 2.写代码能力,容易挫败感,经常有bug,很烦心,耐心不够好 题目: In this programming assignment you will implement one or more of the inte ...
分类:其他好文   时间:2018-11-25 00:03:34    阅读次数:426
535. Encode and Decode TinyURL(rand and srand)
TinyURL is a URL shortening service where you enter a URL such as https://leetcode.com/problems/design-tinyurl and it returns a short URL such as http ...
分类:Web程序   时间:2018-11-19 13:33:08    阅读次数:213
294. Flip Game II
You are playing the following Flip Game with your friend: Given a string that contains only these two characters: + and -, you and your friend take tu... ...
分类:其他好文   时间:2018-11-06 13:39:27    阅读次数:153
373. Find K Pairs with Smallest Sums
You are given two integer arrays nums1 and nums2 sorted in ascending order and an integer k. Define a pair (u,v) which consists of one element from th... ...
分类:其他好文   时间:2018-11-06 11:22:59    阅读次数:191
407. Trapping Rain Water II
Given an m x n matrix of positive integers representing the height of each unit cell in a 2D elevation map, compute the volume of water it is able to ... ...
分类:移动开发   时间:2018-11-06 11:19:03    阅读次数:208
[CC-CMPVIRS]Computer Virus
[CC CMPVIRS]Computer Virus 题目大意: 有一张纸带,从左到右被分成了$n(n\le10^7)$个格子,在刚开始,第$i$个格子上写着数字$i$。这张纸带被分成了从左到右的连续的$m(m\le10^3)$段,编号较小的段在编号较大的段的左边,且每一个格子都被分给了其中的一段。 ...
分类:其他好文   时间:2018-10-30 14:49:47    阅读次数:134
20 Organizing Go code
Organizing Go code 16 August 2012 Introduction Go code is organized differently to that of other languages. This post discusses how to name and packag ...
分类:其他好文   时间:2018-09-25 11:29:42    阅读次数:165
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