1、原sql语句:select major_id AS majorId ,major_name AS majorName,tuition,dept_id as deptId from tb_major where major_id ? 出现问题:Request processing failed: org.springframework.jdbc.BadSqlGrammarException: StatementCallback; bad SQ…
题目: 题解:
/*** Definition for a binary tree node.* struct TreeNode {* int val;* struct TreeNode *left;* struct TreeNode *right;* };*/
//递归遍历树节点,判断是否为有效路径
int dfs(struct TreeNode * root, int ta…