This time, hi to E solvers who stuck on D (:

Seems like AI is still weak on interactive questions, but by being asked more interactive problems, it will be just as skilled in this tag so participating in contest will need more and more patience!

Which one is more untolerable?

Counting wheats in the picture , or still participating in contests?

Hi to those who still do not use AI (in any way...even debugging; lol) Contests are passing one after another and the situation is getting even worse. Before , by solving A,B,C,D you could get acceptable performance, but now , I think you should accept all of the problems ): Let's be optimistic, maybe other programmers are progressing and we are left behind!

Hi to F solvers that got stuck on D ):

Seems like graph algorithms are much harder than topics taught in universities for you. Honestly Gaussian elimination is still hard for me, maybe that`s why I am still a specialist, what is your secret?