CF1182D - Complete Mirror
Description
给定一个 n n n 个点的无根树,求一个树根 r o o t root root,使得对于任意两个节点 v 1 , v 2 v_1,v_2 v1,v2,若满足 d i s t ( v 1 , r o o t ) d i s t ( v 2 , r o o t ) dist(v_1,root)dist(v_2,ro…
fatal: unable to access http://xxx.git/: Could not resolve host: yyy Git-fatal: unable to access ‘https://gitlab.XX.git/‘: Could not resolve host: gitlab.XX.com.cn_drone unable to access .git/: could-CSDN博客
原因: 克隆的时候使用的是这里的HTT…
tj11:
select max(c.teacher_age) 最大的年龄
from tb_teacher c tj12:
select a.class_name 班级名称,b.student_name 学生姓名,b.gender 学生性别
from tb_class a join tb_student b on a.class_idb.class_id
join tb_teacher c on a.teacher_idc.teacher_id
w…