The 3rd Universal Cup 做题记录
Stage 0 - Stage 9:The 3rd Universal Cup 做题记录 (1)
Stage 10 - Stage 19:The 3rd Universal Cup 做题记录 (2)
The 3rd Universal Cup. Stage 10: West Lake
A. Italian Cuisine
复制一遍,枚举 \(i\) 维护右端点 \(j\)。要求 \((x,y)\)…
DCL
use mysql;-- 创建用户
create user yd@localhost identified by 123456;
-- 修改用户的密码
alter user yd@localhost identified by 1234;
-- % 表示任意主机都可以访问
-- 删除用户
drop user yd@localhost;
-- 查询权限
show grants for yd@localhost;
-- 授予权限
gra…