History of question #809241
| When | Who | Action | New State |
|---|---|---|---|
| Sihyun Jeon | Answer | Answered | |
| pengshijie | Reopen | Open | |
| Olivier Mattelaer | Answer | Answered | |
| pengshijie | Reopen | Open | |
| Olivier Mattelaer | Answer | Answered | |
| pengshijie | Reopen | Open | |
| Olivier Mattelaer | Answer | Answered | |
| pengshijie | Reopen | Open | |
| Olivier Mattelaer | Answer | Answered | |
| pengshijie | Reopen | Open | |
| Olivier Mattelaer | Answer | Answered | |
| pengshijie | Confirm | Solved |
