English version is in beta. All contents of the site should be already translated (mostly using machine translation), and everything should work properly. However, if you find any problems, please contact me.
Level 9A
To advance to the next level, you need to solve all problems.
Binary trees and trie
Problems of medium difficulty on geometry
The material should be closer to the end of the corresponding lecture in SIS.2013.B'
You can also view the sections needed for each task on e-maxx.
Difficult problems on DP
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