水仙花数Time Limit: 2000/1000 MS (Java/Others)Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 97954Accepted Submission(s): 29126Problem Desc...
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其他好文 时间:
2014-09-24 21:06:17
阅读次数:
205
1 TOP 这是一个大家经常问到的问题,例如在SQLSERVER中可以使用如下语句来取得记录集中的前十条记录: SELECT TOP 10 * FROM [index] ORDER BY indexid DESC; 但是这条SQL语句在SQLite中是无法执行的,应该改为: SELECT * FRO...
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数据库 时间:
2014-09-24 20:07:27
阅读次数:
194
数值统计Time Limit: 2000/1000 MS (Java/Others)Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 54644Accepted Submission(s): 27973Problem Desc...
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其他好文 时间:
2014-09-24 11:29:16
阅读次数:
178
第几天?Time Limit: 2000/1000 MS (Java/Others)Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 74627Accepted Submission(s): 28229Problem Desc...
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其他好文 时间:
2014-09-23 22:54:35
阅读次数:
161
成绩转换Time Limit: 2000/1000 MS (Java/Others)Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 75179Accepted Submission(s): 33050Problem Desc...
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其他好文 时间:
2014-09-23 21:01:15
阅读次数:
300
1、直接选中folder1 folder2 desc.txt直接压缩而不是建立一个bootanimation文件夹,把三者放进去压缩bootanimation文件夹。
2、压缩要选择存储而不是默认的标准压缩
具体参考下边的图...
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移动开发 时间:
2014-09-23 20:09:38
阅读次数:
161
1, Sort
Needless to say, mongodb also support to sort data. THe positive one means sorting by asc order and negetive means by desc.
2. Group
The grammar of group:
Description Of Argument:...
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数据库 时间:
2014-09-23 02:47:33
阅读次数:
267
第k大GCD = GCD/第K大因子
Revenge of GCD
Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)
Total Submission(s): 877 Accepted Submission(s): 259
Problem Desc...
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其他好文 时间:
2014-09-22 03:21:01
阅读次数:
218
1.根据ROWID来分select * from t_xiaoxi where rowid in(select rid from (select rownum rn,rid from(select rowid rid,cid fromt_xiaoxi order by cid desc) wher....
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数据库 时间:
2014-09-19 15:13:55
阅读次数:
183
一:根据用户的得分查询其排名答:先查出分数比当前用户高的有几个,在查出积分跟当前用户相等,时间早于这个用户的有几个,相加就是排名或set @i = 0;SELECT *, (@i := @i + 1) AS ranking from user_score order by score desc, c...
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数据库 时间:
2014-09-19 13:44:35
阅读次数:
231