| When | User | Flag Type | Description |
|---|---|---|---|
| 2015-11-23 09:49:06 | Matrok | Well Constructed | |
| 2016-02-09 08:42:37 | kikovsk | Well Constructed | |
| 2016-08-04 13:08:05 | 徐敬唐 | Needs Fixing | 無解 |
| 2019-02-01 17:16:11 | arbitrageftw | Well Constructed | |
| 2022-11-19 05:03:07 | osi | Well Constructed |