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structure needs cleaning
If you're attempting to run xfs_repair, getting the error message that suggests mounting the filesystem to replay the log, and after mounting still re ...
分类:其他好文   时间:2018-09-06 03:00:10    阅读次数:493
Can’t update table ‘xxx’ in stored function/trigger because it is already used by statement which invoked this stored function/trigger
MySQL: Solution for ERROR 1442 (HY000): Can’t update table ‘xxx’ in stored function/trigger because it is already used by statement which invoked this ...
分类:其他好文   时间:2018-09-02 20:25:15    阅读次数:656
ACM-ICPC 2018 南京赛区网络预赛 J.Sum
Sum A square-free integer is an integer which is indivisible by any square number except 11. For example, 6 = 2 \cdot 36=2?3 is square-free, but 12 = ...
分类:其他好文   时间:2018-09-02 12:34:50    阅读次数:272
Deuteronomy
You should choose the right path when you can choose, and you should choose the right path even if you can't choose. Do not steal. I feel that using p ...
分类:其他好文   时间:2018-09-02 11:56:23    阅读次数:274
square
A square_free integer is an integer which is indivisible by any square number except 1.F or example 6=2*3 is square-free ,but 12=2^2*3 is not because ...
分类:其他好文   时间:2018-09-01 17:33:13    阅读次数:154
字串变换
"字串变换" 一个简单的 $bfs$ ,只是扩展结点时比较"另类",还有一点迭代加深搜索的味道 数据范围较小,无需$kmp$ ,暴力判断就好 认识到了两点 1. $\because$ 无符号数相减不会出现负数,$\therefore$ 当小数减大数时会得到一个很大的数. $\therefore$ 应 ...
分类:其他好文   时间:2018-08-30 23:27:19    阅读次数:215
Springboot The requested profile "pom.xml" could not be activated because it doesn't not exists
头一次写springboot项目,打成war包时,pom.xml也都配置了,网上查了很多资料说是maven环境和java环境的问题,但是看了后没有发现什么问题,删了maven下的.m2maven库再重载也没有什么卵用, 后来在项目上右击 -->propreties -->maven 点击Pestor ...
分类:编程语言   时间:2018-08-29 14:48:14    阅读次数:1067
[LeetCode] 610. Triangle Judgement_Easy tag: SQL
A pupil Tim gets homework to identify whether three line segments could possibly form a triangle. However, this assignment is very heavy because there ...
分类:数据库   时间:2018-08-29 01:14:28    阅读次数:280
681. Next Closest Time
681. Next Closest Time Given a time represented in the format "HH:MM", form the next closest time by reusing the current digits. There is no limit on ... ...
分类:其他好文   时间:2018-08-28 21:15:42    阅读次数:234
centos7启动iptables时报Job for iptables.service failed because the control process exited with error cod
centos7启动iptables时报Job for iptables.service failed because the control process exited with error cod 启动iptables: service iptables start 报错如下: Job for ...
分类:其他好文   时间:2018-08-28 14:14:24    阅读次数:373
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