Hello cool coders, this is my first blog on Codeforces, hope it might help you a bit.
Last month me and my friend kashish001 were discussing, how to get the problems list of a user on Codeforces when he/she was Newbie, Pupil, etc and all problems list.
Usage 1 :
You can find what all problems a user did when he was Newbie, Pupil, etc or all problem list (Scrapped from submission page of user).
Usage 2 :
And you can also map your submissions with those problems list (Used Codeforces API).
Any suggestion or comments is welcome. :)