Codeforces-Gym 104849J：Traveling Salesperson in an Island（计算几何+最短路）
ProblemJ.TravelingSalespersoninanIslandTimeLimit:2secondsYouareasalespersonatoneoftheportsinanisland.Youhavetovisitalltheportsoftheislandandthencomebacktothestartingport.Becauseyoucannotswimandarescar