RTRTRT,水红差点TLETLETLE四个点(wssbwssbwssb)但加了
ios::sync_with_stdio(false);
后,(再开O2),瞬间从1.20s提升到800多ms!!!
YYDS$$YYDS$$YYDS
当然,大佬们用scanfscanfscanf和printfprintfprintf也没问题
可是蒟蒻只会cincincin和coutcoutcout