History of question #697884
| When | Who | Action | New State |
|---|---|---|---|
| Olivier Mattelaer | Answer | Answered | |
| Yingjie Wei | Reopen | Open | |
| Olivier Mattelaer | Answer | Answered | |
| Yingjie Wei | Reopen | Open | |
| Olivier Mattelaer | Answer | Answered | |
| Yingjie Wei | Reopen | Open | |
| Olivier Mattelaer | Answer | Answered | |
| Yingjie Wei | Confirm | Solved |
