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题目4:MySQL----------Rank Scores
Write a SQL query to rank scores. If there is a tie between two scores, both should have the same ranking. Note that after a tie, the next ranking number should be the next consecutive integer value. ...
分类:数据库   时间:2015-05-24 08:53:01    阅读次数:186
Element Children
The childNodes property contains all of the immediate children of the element. There is a significant difference between browsers regarding the iden.....
分类:其他好文   时间:2015-05-21 22:32:50    阅读次数:206
Anonymizing the vertics
Although the techniques described above reveal the identity of the vertics in the social graph but add noise to the relationships between them,th...
分类:其他好文   时间:2015-05-21 22:18:02    阅读次数:141
link privacy between labeled vertics
There are two main mechnisms for preserving link privacy between labeled vertices. The first approach is to perform clustering of vertices and ed...
分类:其他好文   时间:2015-05-21 19:23:06    阅读次数:98
【牛腩新闻发布系统】——分页其实很简单
with temptbl as ( select ROW_NUMBER () over (order by id desc )as 行号,* from news ) select * from temptbl where 行号 between 9 and 16...
分类:其他好文   时间:2015-05-21 15:34:58    阅读次数:135
HDU 1558
输入线段的两个短点,如果线段相交那么他们属于一个集合,查看第i条线段所在的集合有几条线段。好久没码码了,总是各种蠢。首先找出两条直线的方程,求解相交点的横坐标,然后看是不是在线段内部。没有注意题目中从1开始数,我自己写的从0开始数,各种wa。同时,又受到了杭电的输出大坑(between和fllowe...
分类:其他好文   时间:2015-05-20 22:06:03    阅读次数:144
7_查询之where
查询条件判断select5种子句:where条件查询groupby分组having筛选orderby排序limit限制结果条数---------------------where1.运算符:<<==!=<>不等于有两种表示>=>inin(4,5)betweenbetween2000and3000取出goods_id是4和5的商品:selectgoods_id,goods_namefro..
分类:其他好文   时间:2015-05-20 18:45:42    阅读次数:108
Maximum Gap
Given an unsorted array, find the maximum difference between the successive elements in its sorted form.Try to solve it in linear time/space.Return 0 ...
分类:其他好文   时间:2015-05-20 08:15:30    阅读次数:133
Tree Diameter
The diameter of a tree (sometimes called the width) is the number of nodes on the longest path between two leaves in the tree.The diameter of a tree T...
分类:其他好文   时间:2015-05-20 07:07:30    阅读次数:129
指针与引用的区别和联系
指针与引用的区别:The difference between "pointer" and "reference"区别1: 给指针A赋值的时侯,要么赋一个地址B,要么赋一个同类型的指针C ( 使用地址B赋值时,B中存储的值的类型要和A指针指向的类型一致。如果B指向的值用const 修饰,那么指针.....
分类:其他好文   时间:2015-05-20 01:59:30    阅读次数:127
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