#Parmida

CF #261 div2 D. Pashmak and Parmida's problem (树状数组版)

ParmidaisaclevergirlandshewantstoparticipateinOlympiadsthisyear.Ofcourseshewantsherpartnertobeclevertoo(althoughhe'snot)!Parmidahaspreparedthefollowingtestprobl...
代码星球 ·2020-04-06