2022-12-04 09:27:16 +00:00
|
|
|
ALTER TABLE `problems` ADD `difficulty` int NOT NULL DEFAULT '-1' AFTER `submit_num`;
|
|
|
|
ALTER TABLE `problems` MODIFY `extra_config` json NOT NULL;
|
2022-12-05 03:54:58 +00:00
|
|
|
ALTER TABLE `problems` ADD KEY `difficulty` (`difficulty`);
|