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Leetcode: Subsets
题目: Given a set of distinct integers, S, return all possible subsets.Note:Elements in a subset must be in non-descending order. The solution set must not contain duplicate subsets. For example, If S...
分类:其他好文   时间:2015-04-21 00:26:35    阅读次数:134
Climbing Stairs
You are climbing a stair case. It takesnsteps to reach to the top.Each time you can either climb 1 or 2 steps. In how many distinct ways can you climb...
分类:其他好文   时间:2015-04-20 22:11:05    阅读次数:110
Oracle、MySql、SQLServer数据分页查询
看过此博文后Oracle、MySql、SQLServer 数据分页查询,在根据公司的RegionRes表格做出了SQLserver的分页查询语句:SELECT DISTINCT TOP 500 rr.ID AS id ,rr.strName AS name ,rr.nType...
分类:数据库   时间:2015-04-20 16:50:09    阅读次数:150
SQLSever 第二堂课,主要学习内容为top查询前多少行,distinct去重,order by排序,group by分组,最重要子查询
create database xueshengdrop database xushenguse xueshenggocreate table xueshengxinxi(code int primary key identity(1,1)not null,name varchar(50) not ...
分类:数据库   时间:2015-04-20 16:21:22    阅读次数:173
【leetcode】Climbing Stairs
You are climbing a stair case. It takes n steps to reach to the top.Each time you can either climb 1 or 2 steps. In how many distinct ways can you cli...
分类:其他好文   时间:2015-04-19 19:25:05    阅读次数:165
【leetcode】N-Queens II
Follow up for N-Queens problem.Now, instead outputting board configurations, return the total number of distinct solutions.问题是求N皇后的解,可以采用回溯法解决。 1 clas...
分类:其他好文   时间:2015-04-18 17:32:34    阅读次数:128
Remove Duplicates from Sorted List II -- leetcode
Given a sorted linked list, delete all nodes that have duplicate numbers, leaving only distinct numbers from the original list. For example, Given 1->2->3->3->4->4->5, return 1->2->5. Given 1->1-...
分类:其他好文   时间:2015-04-18 13:11:39    阅读次数:121
linq Distinct 去除重复数据
转载:http://www.cnblogs.com/ldp615/archive/2011/08/01/distinct-entension.html只可惜linq默认不支持.Distinct(p => p.ID);试想如果能写成下面的样子,是不是更简单优雅:var p1 = products.Di...
分类:其他好文   时间:2015-04-17 20:17:17    阅读次数:135
SQL语句学习
看似简单,但其实包含很多技巧思维1.查询课程表中所有科目大于80的学生select distinct name from student where name not in (select name from student where grade=80);这样代表只要有一门大于80即可
分类:数据库   时间:2015-04-17 19:50:36    阅读次数:153
Basic Messager
Basic Messager - jQuery EasyUI Demo Basic Messager Click on each button to see a distinct message box. Sh...
分类:其他好文   时间:2015-04-17 17:36:24    阅读次数:100
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