Failed third test case?(New driving license )(Have a look)

Question

New driving license
https://code.sololearn.com/cYij01FzL1ww/?ref=app

Answer 1

The reason why that is not correct cout<<(((it-v.begin()+1)/n)*20)+(((it-v.begin()+1)%n)*20)<<endl; in wrong shift. Try input 5 agents and 3d or 4th name, you will see problem. In general all will be free after 20 min, but if we count shift like this we have wrong answer.

Answer 2

I try to write cout<<(((it-v.begin())/n + 1)*20)<<endl; in 20 line and get it with your code

Answer 3

Thanks buddy it works.