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 mus...
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其他好文 时间:
2014-06-29 00:03:40
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272
Select/Distinct操作包括9种形式,分别为简单用 法、匿名类型形式、条件形式、指定类型形式、筛选形式、整形类型形式、嵌套 类型形式、本地方法调用形式、Distinct形式。1.简单用法:这个示 例返回仅含客户联系人姓名的序列。var q = from c in db.Customers....
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数据库 时间:
2014-06-28 21:25:10
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240
DECLARE @STR VARCHAR(8000)SELECT @STR=ISNULL(@STR+',','')+weixinuser FROM (SELECT DISTINCT weixinuser FROM v_sysbinduser)AS TSELECT @STRdeclare @outpu...
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数据库 时间:
2014-06-28 18:23:39
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285
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...
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其他好文 时间:
2014-06-24 10:22:48
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214
方法一 注:需要.net 3.5框架的支持string s = "101,102,103,104,105,101,102,103,104,105,106,107,101,108";s = string.Join(",", s.Split(',').Distinct().ToArray());方法二c...
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其他好文 时间:
2014-06-23 06:01:57
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256
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-...
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其他好文 时间:
2014-06-22 22:57:49
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347
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.
...
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其他好文 时间:
2014-06-22 17:51:54
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196
INSERT INTO system_organize (organize_id,organize_code,organize_name)SELECT DISTINCT REPLACE(UUID(),'-',''),a_code,a_name FROM sys_fee_aREPLACE(UUID()...
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其他好文 时间:
2014-06-20 16:49:13
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185
在使用mysql时,有时需要查询出某个字段不重复的记录,虽然mysql提供 有distinct这个关键字来过滤掉多余的重复记录只保留一条,但往往只用它来返回不重复记录的条数,而不是用它来返回不重记录的所有值。其原因是 distinct只能返回它的目标字段,而无法返回其它字段,这个问题让我困扰了很久,...
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数据库 时间:
2014-06-18 09:28:11
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251
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,
...
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其他好文 时间:
2014-06-18 00:39:26
阅读次数:
301