Recently I solved this problem. Upon first reading this and before solving it, I thought of many other possible approaches like which would either TLE/MLE. One of them being to maintain a dp; Until I finally realized the retroactiveness the question demands. If you look at it closely it is the same as this problem. Now I have a few questions on how to solve a more general version of it if...

1. The

was variable i.e. we are also given an array each having some

with atmost one drink per day.

1. Instead of atmost 1 drink per day, We are allowed to choose any number of drinks per day with given

If you have any thoughts or ideas on this one please make sure to share. As for me, it is the first time I have seen such variations in such a problem with these constraints. Also can we even solve it in some efficient complexity ? I am very eager to know.

Thanks for reading !