soon hold world large programming contest testing system m bug the contest organizer wellknown university choice attract university student fix bug the university n student able perform work the student realize hope organizer do not want work free ith student want ci pass subject regardless volume workbugs like student bug characterize complexity aj student level ability bi student fix bug j level ability complexity bug biaj day Otherwise bug fix student of course student work bug day all bug dependent correct order different student work simultaneouslyThe university want fix bug quickly possible give student total s pass Determine student use come schedule work say student fix bug