| #11601 | Guessing GamePetrozavodsk Winter 2018 Day 1 | |
| #11602 | Flat EarthPetrozavodsk Winter 2018 Day 1 | |
| #11603 | We Need More Managers!Petrozavodsk Winter 2018 Day 1 | |
| #11604 | MasterpiecePetrozavodsk Winter 2018 Day 1 | |
| #11605 | Don't Split The Atom!Petrozavodsk Winter 2018 Day 1 | |
| #11606 | Bobby TablesPetrozavodsk Winter 2018 Day 1 | |
| #11607 | TriplesPetrozavodsk Winter 2018 Day 1 | |
| #11608 | Related LanguagesPetrozavodsk Winter 2018 Day 1 | |
| #11609 | Airport Check-inPetrozavodsk Winter 2018 Day 2 | |
| #11610 | Beyond the RescuePetrozavodsk Winter 2018 Day 2 | |
| #11611 | Casino CheatingPetrozavodsk Winter 2018 Day 2Interactive | |
| #11612 | DotA QualsPetrozavodsk Winter 2018 Day 2 | |
| #11613 | Enumeration of TournamentsPetrozavodsk Winter 2018 Day 2 | |
| #11614 | Fresh MatrixPetrozavodsk Winter 2018 Day 2 | |
| #11615 | Game of ChairsPetrozavodsk Winter 2018 Day 2 | |
| #11616 | Hung FuPetrozavodsk Winter 2018 Day 2 | |
| #11617 | Is It a p-drome?Petrozavodsk Winter 2018 Day 2 | |
| #11618 | JourneyPetrozavodsk Winter 2018 Day 2 | |
| #11619 | Kid's NightmarePetrozavodsk Winter 2018 Day 2 | |
| #11620 | Lazy StudentPetrozavodsk Winter 2018 Day 2 | |
| #11621 | Vacant SeatPetrozavodsk Winter 2018 Day 3Interactive | |
| #11622 | Colorful DoorsPetrozavodsk Winter 2018 Day 3 | |
| #11623 | Construct PointPetrozavodsk Winter 2018 Day 3 | |
| #11624 | Knapsack and QueriesPetrozavodsk Winter 2018 Day 3 | |
| #11625 | XorTreePetrozavodsk Winter 2018 Day 3 | |
| #11626 | Antennas On TreePetrozavodsk Winter 2018 Day 3 | |
| #11627 | RectanglesPetrozavodsk Winter 2018 Day 3 | |
| #11628 | Generalized Insertion SortPetrozavodsk Winter 2018 Day 3 | |
| #11629 | ADD, DIV, MAXPetrozavodsk Winter 2018 Day 3 | |
| #11630 | Simple APSP ProblemPetrozavodsk Winter 2018 Day 3 | |
| #11631 | Forest TaskPetrozavodsk Winter 2018 Day 3 | |
| #11632 | AnannaLAC 2025 | |
| #11633 | Brazilian FootXORLAC 2025 | |
| #11634 | Coatless in YakutskLAC 2025 | |
| #11635 | Dangerous CityLAC 2025 | |
| #11636 | Exciting Business OpportunitiesLAC 2025 | |
| #11637 | Festival SignsLAC 2025 | |
| #11638 | Game of PiecesLAC 2025 | |
| #11639 | Horrible RestaurantsLAC 2025 | |
| #11640 | Infinite ArraysLAC 2025 | |
| #11641 | Just Look UpLAC 2025 | |
| #11642 | Keep FightingLAC 2025 | |
| #11643 | LED CounterLAC 2025 | |
| #11692 | Ability DraftPetrozavodsk Winter 2018 Day 4 | |
| #11693 | Short Random ProblemPetrozavodsk Winter 2018 Day 4 | |
| #11694 | Block, Stock and Two Smoking Galaxy NotesPetrozavodsk Winter 2018 Day 4 | |
| #11695 | Lunch QueuePetrozavodsk Winter 2018 Day 4 | |
| #11696 | OnenessPetrozavodsk Winter 2018 Day 4 | |
| #11697 | ShufflePetrozavodsk Winter 2018 Day 4 | |
| #11698 | Piecewise LinearityPetrozavodsk Winter 2018 Day 4 | |
| #11699 | SketchPetrozavodsk Winter 2018 Day 4 | |
| #11700 | $\leq$ or $\geq$Petrozavodsk Winter 2018 Day 4Interactive | |