History of question #684115
| When | Who | Action | New State |
|---|---|---|---|
| gaoxuesong | Confirm | Solved | |
| gaoxuesong | Reopen | Open | |
| Jan Stránský | Answer | Answered | |
| Robert Caulk | Answer | Answered | |
| Robert Caulk | Comment | Answered | |
| Bruno Chareyre | Answer | Answered | |
| Robert Caulk | Comment | Answered | |
| gaoxuesong | Confirm | Solved |
