| ID | Problem Show tags Hide tags | AC / Tried | Difficulty | |
|---|---|---|---|---|
| 4061 | P830E Perpetual Motion Machine | 0 / 0 | (None) | |
| 4058 | P831C Jury Marks | 0 / 0 | (None) | |
| 4041 | P835E The penguin's game | 0 / 0 | (None) | |
| 4020 | P840B Leha and another game about graph | 0 / 0 | (None) | |
| 4007 | P843C Upgrading Tree | 0 / 0 | (None) | |
| 3987 | P847C Sum of Nestings | 0 / 0 | (None) | |
| 3986 | P847D Dog Show | 0 / 0 | (None) | |
| 3978 | P847L Berland SU Computer Network | 0 / 0 | (None) | |
| 3976 | P848A From Y to Y | 0 / 0 | (None) | |
| 3975 | P848B Rooter's Song | 0 / 0 | (None) | |
| 3966 | P850D Tournament Construction | 0 / 0 | (None) | |
| 3947 | P854A Fraction | 0 / 0 | (None) | |
| 3946 | P854B Maxim Buys an Apartment | 0 / 0 | (None) | |
| 3938 | P856A Set Theory | 0 / 0 | (None) | |
| 3927 | P858F Wizard's Tour | 0 / 0 | (None) | |
| 3916 | P862C Mahmoud and Ehab and the xor | 0 / 0 | (None) | |
| 3899 | P865A Save the problem! | 0 / 0 | (None) | |
| 3896 | P865D Buy Low Sell High | 0 / 0 | (None) | |
| 3889 | P868C Qualification Rounds | 0 / 0 | (None) | |
| 3869 | P873D Merge Sort | 0 / 0 | (None) | 
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