History of question #295401

When Who Action New State
2016-06-17 qianguozheng Give more information Open
2016-06-17 qianguozheng Give more information Open
2016-06-17 Alex Rousskov Answer Answered
2016-06-20 qianguozheng Reopen Open
2016-06-20 Alex Rousskov Answer Answered
2016-06-21 qianguozheng Confirm Solved