lonlife oj 1029 - Bob and Alice are playing factors
DESCRIPTIONBobandhisgirlfriendAlicelikefactorsverymuch.Oneday,Bobfindabeautifulpath:4,2,1,Becauese2isthefactorof4and1isthefactorof2.Aliceisexcited,says“whycan’twefindalongestpathA1,A2,A3,…,Ak,Ai+1isth