| When | User | Flag Type | Description |
|---|---|---|---|
| 2012-08-13 02:52:50 | mella | Needs Fixing | There is a better solution |
| 2014-06-10 06:07:41 | 徐敬唐 | Well Constructed | |
| 2014-06-29 06:26:08 | Matrok | Well Constructed | |
| 2015-05-16 13:52:18 | tenuki89 | Well Constructed | |
| 2019-02-01 21:20:22 | arbitrageftw | Well Constructed | |
| 2020-05-14 08:41:16 | Superfly_Jon | Well Constructed |