History of question #266188
| When | Who | Action | New State |
|---|---|---|---|
| Mark Rijckenberg | Answer | Answered | |
| Tong Sun | Reopen | Open | |
| Mark Rijckenberg | Answer | Answered | |
| Tong Sun | Reopen | Open | |
| Mark Rijckenberg | Comment | Open | |
| Tong Sun | Comment | Open | |
| Manfred Hampl | Answer | Answered | |
| Christopher Patrick | Answer | Answered | |
| Tong Sun | Reopen | Open | |
| Manfred Hampl | Answer | Answered | |
| Tong Sun | Reopen | Open | |
| Tong Sun | Confirm | Solved |
