History of question #657677
| When | Who | Action | New State |
|---|---|---|---|
| Jan Stránský | Answer | Answered | |
| Bruno Chareyre | Answer | Answered | |
| Kun Zeng | Comment | Answered | |
| Bruno Chareyre | Answer | Answered | |
| Jan Stránský | Answer | Answered | |
| Bruno Chareyre | Comment | Answered | |
| Kun Zeng | Confirm | Solved | |
| Kun Zeng | Comment | Solved |
