Long long ago there is a strong tribe living on the earth. They always have wars and eonquer others.One day, there is another tribe become their target. The strong tribe has decide to terminate them!!!There are m villages in the other tribe. Each vil…
题目链接: 传送门 Defeat the Enemy Time Limit: 3000MS Memory Limit: 32768 KB Description Long long ago there is a strong tribe living on the earth. They always have wars and eonquer others.One day, there is another tribe become their target. The strong t…
Long long ago there is a strong tribe living on the earth. They always have wars and eonquer others. One day, there is another tribe become their target. The strong tribe has decide to terminate them!!! There are m villages in the other tribe. Each…
这个题跟codeforces 556 D Case of Fugitive思路一样 关于codeforces 556 D Case of Fugitive的做法的链接http://blog.csdn.net/stl112514/article/details/46868749 题意大概我方有n个军队,敌方有m个军队.军队有两个属性:攻击力和防御力 一个军队能打败还有一个军队的条件:一军队攻击力不低于还有一个军队防御力 大概是2014上海区域赛最简单的一个题? #include<map> #in…
Defeat The Enemy Time Limit: 3000MS Memory Limit: Unknown 64bit IO Format: %lld & %llu Long long ago there is a strong tribe living on the earth. They always have wars and eonquer others. One day, there is another tribe become their target. The stron…
最近用JSR303在表单提交时使用Java Bean Validation验证数据.报错堆栈如下: java.lang.IllegalStateException: Neither BindingResult nor plain target object for bean name 'command' available as request attribute at org.springframework.web.servlet.support.BindStatus.<init>(Bind…
mysql中You can't specify target table <tbl> for update in FROM clause错误的意思是说,不能先select出同一表中的某些值,再update这个表(在同一语句中). 如下l: 需要将select出的结果再通过中间表select一遍,就可以规避了错误. 如下: PS:这个问题只出现于mysql,sql service 和 oracle 不会出现此问题.…