Save Money for Your Company 最小矩形覆盖(非计算几何)/找出N条直线相交点的边缘点/ find the dominating points of N lines
SaveMoneyforYourCompany!DescriptionYouarethedirectorofaminingenterprise,aimingtopurchaseanmininglandforyourcompany.Thislandhasalreadybeencriss-crossedwithalotofminingtunnels.Inthetrading,thevendordema