| When | User | Flag Type | Description |
|---|---|---|---|
| 2012-02-10 17:10:14 | mafutrct | Needs Fixing | wrng comments |
| 2016-08-08 16:21:51 | lonlywolf | Needs Fixing | The solution provided doesn't seem more correct than others. It is not explained and not obvious. |
| 2017-10-17 16:52:46 | mdp05mimura | Well Constructed | |
| 2017-12-27 07:24:00 | Onishi T | Well Constructed | |
| 2020-12-13 06:24:46 | evanbd83 | Needs Fixing | Missing modern AI lines. |