Below is the discussion thread to discuss all doubts/alternative solutions/better explanations for Problem E of Round #704.
We all have have discussions regarding problems in the comment section after the contest.
In fact the comments, are way more explanatory than the editorial itself, sometimes.
But for someone who solves the problems later, and comes to the editorial and comment section for a particular problem, it's take a lot of time to scroll and search for the problem we want.
So, it would be nice if we discuss all doubts/alternative solutions/better explanations of a particular problem under a blog for each problem.
The blog links to all the problems can be posted as a comment to the Editorial and Announcement of that round after the contest is over.
This way, we would not have to scroll and search in the comment section of the Editorial.