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Climbing Stairs leetcode java
题目: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....
分类:编程语言   时间:2014-08-02 12:19:43    阅读次数:389
[leetcode]Distinct Subsequences
Distinct SubsequencesGiven a stringSand a stringT, count the number of distinct subsequences ofTinS.A subsequence of a string is a new string which is...
分类:其他好文   时间:2014-08-02 04:17:48    阅读次数:177
Subsets
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 exa...
分类:其他好文   时间:2014-08-01 23:18:42    阅读次数:246
sql查询去除重复值语句
sql 单表/多表查询去除重复记录单表distinct多表group bygroup by 必须放在 order by 和 limit之前,不然会报错***************************************************************************...
分类:数据库   时间:2014-08-01 12:49:21    阅读次数:313
[leetcode]Climbing Stairs
Climbing StairsYou 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 way...
分类:其他好文   时间:2014-08-01 04:37:21    阅读次数:244
限定查询与排序显示(章节摘要)
1,数据查询的标准语法。 SELECT [DISTINCT] * | 列 [AS][别名],列[AS][别名],... FROM 表名称 [别名] [WHERE 限定条件(s)] [ORDER BY 排序字段 [ASC | DESC][,排序字段[ASC | DESC]...]]; 2,多个字句的执行顺序为FROM,WHERE,SELECT,ORDER BY,其中ORDER ...
分类:其他好文   时间:2014-07-31 21:04:37    阅读次数:258
Subset leetcode java
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 n....
分类:编程语言   时间:2014-07-31 05:22:45    阅读次数:286
Climbing Stairs
问题描述: 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 climb to the top? 解题思路: 这是一个典型的斐波那契数列,对于...
分类:其他好文   时间:2014-07-31 00:02:55    阅读次数:243
Ultra-QuickSort(树状数组 + 离散化)
Description In this problem, you have to analyze a particular sorting algorithm. The algorithm processes a sequence of n distinct integers by swapping two adjacent sequence elements until the seq...
分类:其他好文   时间:2014-07-30 12:22:33    阅读次数:290
关于DISTINCE的用法
SQL SELECT DISTINCT 语句在表中,可能会包含重复值。这并不成问题,不过,有时您也许希望仅仅列出不同(distinct)的值。关键词 DISTINCT 用于返回唯一不同的值。语法:SELECT DISTINCT 列名称 FROM 表名称使用 DISTINCT 关键词如果要从 "Com...
分类:其他好文   时间:2014-07-29 11:28:26    阅读次数:381
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