2020.3.13 Nordic Collegiate Programming Contest 2016 prob:7/9/11 rank:4/202

2020.5.2 Acm Google Cup 2011 Invitational Programming Contest prob:4/6/10 rank:11/69

2020.5.9 CTU Open Contest 2016 prob:5/6/10 rank:5/89

2020.5.23 Nordic Collegiate Programming Contest 2015 prob:7/7/10 rank:1/29

2020.6.26 German Collegiate Programming Contest 2015 prob:10/10/11 rank:1/29