I've noticed a lot of participants struggles mostly on math related problems. So, if you have some good recourses / websites / books where everyone can learn something new, please leave the link here!
P.S: If you want to write something like "Solve more math problems", please don't write anything and continue to do whatever you're doing.
Already exists CF Blog about math
https://projecteuler.net/
Googling the stuff helps most of times.
It's a genuine advice...most probably you guys are downvoting bcz I am newbie..but no problem..if "project Euler" seems like a good advice..then solve it gl!
Try not to necropost