问题描述 oracle 12C 创建数据库时报错:
ORA-65096: invalid common user or role name例如:
SQL> create user rui identified by oracle;create user rui identified by oracle*
ERROR at line 1:
ORA-65096: invalid common user or role name原…
赛题描述
A: Highway Traveling time Estimate and Optimal Routing
Ⅰ
Highway traveling time estimate is crucial to travelers. Hence, detectors are mounted on some of the US highways. For instance, detectors are mounted on every two-way six-lane highways o…
来源:力扣(LeetCode)
描述:
有两位极客玩家参与了一场「二叉树着色」的游戏。游戏中,给出二叉树的根节点 root,树上总共有 n 个节点,且 n 为奇数,其中每个节点上的值从 1 到 n 各不…