I have prepared a practice training containing 500 problems, Problems difficulty: from 1500 to 1900,
- 100 Problems Difficulty: 1500
- 100 Problems Difficulty: 1600
- 100 Problems Difficulty: 1700
- 100 Problems Difficulty: 1800
- 100 Problems Difficulty: 1900
These a 500 problems were divided into 25 weeks to become 20 problems per week, of course you can solve more or less than that in a week as you like!
Practice Training Group Group link
UPD 1: Added 100 problems for beginners, difficulty: 1000
UPD 2: What do you think that you invite your friends and create a challenge between you to end solve the problems of any week!
If anyone encountered an error in the group, Please tell me about it, Thanks!
Welcome all suggestions for improving training!
Good luck everyone!