Why I always feel guilty while reading editorials, even after giving good attempt to a problem. Is it normal and fruitful in long run or I am just trapped into some bad habit?

Which is the Most Underrated Data Structure you know and reason for that.
This will help us to learn that and will help in future.

Dear Codeforces,

Please update rating of contest bit faster don't take forever like leetcode to update the contest ratings.