History of question #699238
| When | Who | Action | New State |
|---|---|---|---|
| Robert Caulk | Answer | Answered | |
| Ziyu Wang | Reopen | Open | |
| Robert Caulk | Answer | Answered | |
| Ziyu Wang | Reopen | Open | |
| Robert Caulk | Answer | Answered | |
| Ziyu Wang | Confirm | Solved | |
| Luc Scholtès | Comment | Solved | |
| Ziyu Wang | Comment | Solved | |
| lxq | Comment | Solved |
