I have decided to filter problems on CF (e.g. only Div. 1 A tasks). There is no such function in the problemset. So I decided to write a small script. I am going to share it with you: GitHub
It is very easy to use it:
python filter.py (Requires Python 2.7, requests, json). You can change the language of the script to English (comment the line #7 and uncomment the line #8). Script creates some files (problems.list, contests.list etc). I've made it to decrease the load to Codeforces. Only tasks in "Div. 1 Only" or "Div. 2 Only" (with standart CF rules) are considered.
The following page will be opened at the end:
I don't want to make changes to this script. Please feel free to perform any kind of changes:)