Codeforces Round #552 (Div. 3)每日两刷(E.Two Teams(vector),F. Shovels Shop(DP)G. Minimum Pos数论 2019/4/17
E.TwoTeams题目链接:http://codeforces.com/contest/1154/problem/ETherearenstudentsstandinginarow.Twocoachesareformingtwoteams—thefirstcoachchoosesthefirstteamandthesecondcoachchoosesthesecondteam.Thei-thstu