History of question #237948
| When | Who | Action | New State |
|---|---|---|---|
| Ting Zhang | Answer | Answered | |
| liu chin chi | Reopen | Open | |
| Ting Zhang | Answer | Answered | |
| liu chin chi | Confirm | Solved | |
| Mark Goffin | Comment | Solved | |
| Ting Zhang | Comment | Solved | |
| liu chin chi | Comment | Solved | |
| Jon Hill | Comment | Solved | |
| liu chin chi | Comment | Solved |
