【Green公式】Hunter’s Apprentice(判断多边形为顺时针或逆时针)--鞋带公式
题目描述Whenyouwerefiveyearsold,youwatchedinhorrorasaspikeddevilmurderedyourparents.Youwouldhavediedtoo,exceptyouweresavedbyRose,apassingdemonhunter.Sheendedupadoptingyouandtrainingyouasherapprentice.Rose