【HDU - 5418】Victor and World(tsp旅行商问题,状压dp,floyd最短路,图论)
题干:Aftertryinghardformanyyears,Victorhasfinallyreceivedapilotlicense.Tohaveacelebration,heintendstobuyhimselfanairplaneandflyaroundtheworld.Therearenncountriesontheearth,whicharenumberedfrom11tonn.The