acm运行时显示RUNTIME_ERROR [ACCESS_VIOLATION,怎么解决?

发布网友 发布时间：2022-04-24 13:56

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热心网友 时间：2023-10-15 08:48

①除以零

②数组越界：int a[3]; a[10000000]=10;

③指针越界：int * p; p=(int *)malloc(5 * sizeof(int)); *(p+1000000)=10;

④使用已经释放的空间：int * p; p=(int *)malloc(5 * sizeof(int));free(p); *p=10;

⑤数组开得太大，超出了栈的范围，造成栈溢出：int a[100000000];

打开/etc/mysql/mysql.conf.d/mysqld.cnf 文件,命令如下

$ sudo vi /etc/mysql/mysql.conf.d/mysqld.cnf

2.找到[mysqld]段，并加入一行“skip-grant-tables”,如下图，

3.重启mysql服务,用空密码进入mysql管理命令行，切换到mysql库,操作命令如下，

$ mysql

Welcome to the MySQL monitor.  Commands end with ; or \g.

mysql> use mysql

Reading table information for completion of table and column names

You can turn off this feature to get a quicker startup with -A

Database changed

mysql> update mysql.user set authentication_string=password('newpass') where user='root' and Host ='localhost';

Query OK, 1 row affected, 1 warning (0.00 sec)

Rows matched: 1  Changed: 1  Warnings: 1

mysql> update user set plugin="mysql_native_password";

Query OK, 0 rows affected (0.00 sec)

Rows matched: 3  Changed: 0  Warnings: 0

mysql> flush privileges;

Query OK, 0 rows affected (0.01 sec)

mysql> quit;

Bye

4.回到sudo vi /etc/mysql/mysql.conf.d/mysqld.cnf，把刚才加入的那一行“skip-grant-tables”注释或删除掉。

5.再次重启mysql服务sudo service mysql restart，使用新的密码登陆，修改成功。

$ mysql -u root -p new_pass 

Welcome to the MySQL monitor.  Commands end with ; or \g. 

mysql> 

6.至此，问题解决