[2017-2018 ACM-ICPC, NEERC, Southern Subregional Contest][Codeforces 883 G]Orientation of Edges

[2016-2017 ACM-ICPC, South Pacific Regional Contest (SPPC 16)]E Election Frenzy

[2016-2017 ACM-ICPC, South Pacific Regional Contest (SPPC 16)]B Balloon Warehouse

【BZOJ1086】【SCOI2005】王室联邦

【BZOJ1024】【SCOI2009】生日快乐