| #4 | GapAPIO 2016Interactive | |
| #5 | 在线 O(1) 逆元Interactive | |
| #41 | Worm WorriesBaltic OI 2018Interactive | |
| #63 | MeetingsJOISC 2019 Day 1Interactive | |
| #73 | MineralsJOISC 2019 Day 4Interactive | |
| #91 | Secret PermutationRMI 2019Interactive | |
| #124 | LibraryJOISC 2018 Day 4Interactive | |
| #151 | Nice LinesRMI 2020Interactive | |
| #189 | I 君的商店WC 2019Interactive | |
| #194 | PasswordRMI 2018Interactive | |
| #216 | Sonda [A]PA 2019Interactive | |
| #248 | 即时战略WC 2018Interactive | |
| #368 | Natural ParkJOISC 2017 Day 3Interactive | |
| #403 | Memory2JOISC 2016 Day 1Interactive | |
| #408 | Dungeon 2JOISC 2016 Day 3Interactive | |
| #437 | Fun TourAPIO 2020Interactive | |
| #677 | Koala GameAPIO 2017Interactive | |
| #800 | TrianglesCEOI 2018Interactive | |
| #812 | Find a triangle7th BSUIR Open Programming Championship FinalLesnoe Ozero Workshop 2017 Day 1Interactive | |
| #866 | Display of SpringsPetrozavodsk Winter 2021 Day 2Interactive | |
| #870 | HackermanPetrozavodsk Winter 2021 Day 2Interactive | |
| #883 | Infection EstimationPetrozavodsk Winter 2021 Day 3NCPC 2020Interactive | |
| #951 | The Potion of Great PowerCEOI 2020Interactive | |
| #993 | 100 Boxes Per Hour...Petrozavodsk Winter 2021 Day 7Interactive | |
| #1094 | Business Semiconductor UnitsPetrozavodsk Winter 2021 Day 8Interactive | |
| #1133 | Monster GameJOI Open Contest 2021Interactive | |
| #1145 | Bit Shift RegistersIOI 2021 Day 2Interactive | |
| #1146 | RailIOI 2014 Day 1Interactive | |
| #1155 | CaveIOI 2013 Day 2Interactive | |
| #1214 | Limited MemoryJOISC 2015 Day 4Interactive | |
| #1228 | I 君的探险NOI 2019Interactive | |
| #1399 | RamenJOISC 2014 Day 1Interactive | |
| #1418 | Mountain Rescue TeamJOISC 2013 Day 3Interactive | |
| #1458 | Binary Search AlgorithmPetrozavodsk Winter 2020 Day 8Interactive | |
| #1464 | Interactive AlgorithmPetrozavodsk Winter 2020 Day 8Interactive | |
| #1670 | Is it rated?Northern Eurasia Finals 2020NERC 2020Interactive | |
| #1813 | Joy with PermutationsPetrozavodsk Summer 2021 Day 1Interactive | |
| #1815 | Lazy JudgePetrozavodsk Summer 2021 Day 1Interactive | |
| #1834 | Eulerian?Petrozavodsk Summer 2021 Day 3Interactive | |
| #1894 | Guess the ArrayСПбКОШП 2021Interactive | |
| #2059 | AdditionEast Siberian Subregional 2016Interactive | |
| #2167 | QC QCWorld Finals 2020Interactive | |
| #2199 | Intriguing SelectionNorthern Eurasia Finals 2019NERC 2019Interactive | |
| #2277 | StonesCEOI 2021InteractiveUnavailable | |
| #2284 | Evolutionary ExcerptBAPC 2021InteractiveUKIEPC 2021 | |
| #2286 | Gyrating GlyphsBAPC 2021Petrozavodsk Winter 2022 Day 4InteractiveUKIEPC 2021 | |
| #2292 | Access DeniedNWERC 2021Interactive | |
| #2293 | Boredom BusterNWERC 2021Interactive | |
| #2357 | Random Chess GamePetrozavodsk Winter 2020 Day 1InteractiveUnavailable | |
| #2359 | The Five BishopsPetrozavodsk Winter 2020 Day 1Interactive | |
| #2363 | Dragon BallsNWERC 2020Interactive | |
| #2373 | Find the ArraySEERC 2019Interactive | |
| #2409 | 猜词WC 2022Interactive | |
| #2421 | A Difficult(y) ChoiceBaltic OI 2021Interactive | |
| #2425 | The Collection GameBaltic OI 2021Interactive | |
| #2475 | Bank RobberyCERC 2020Interactive | |
| #2567 | Hidden RookPetrozavodsk Winter 2022 Day 3Interactive | |
| #2609 | Number GuessingPetrozavodsk Winter 2022 Day 6Interactive | |
| #2615 | Surround the CatPetrozavodsk Winter 2022 Day 6Interactive | |
| #2646 | XylophoneJOI Open Contest 2018Interactive | |
| #2669 | 鏖战表达式WC 2016Interactive | |
| #2674 | Vision programIOI 2019 Day 2Interactive | |
| #2695 | Confined CatchingGCPC 2020Interactive | |
| #2727 | Gradient DescentCCO 2018 Day 2Interactive | |
| #2742 | ComboIOI 2018 Day 1Interactive | |
| #2746 | Highway TollsIOI 2018 Day 2Interactive | |
| #2759 | The Big PrizeIOI 2017 Day 2Interactive | |
| #2760 | SimurghIOI 2017 Day 2Interactive | |
| #2783 | Unscrambling a Messy BugIOI 2016 Day 2Interactive | |
| #2786 | ScalesIOI 2015 Day 1Interactive | |
| #2790 | TownsIOI 2015 Day 2Interactive | |
| #2813 | WeirdtreeRMI 2021 Day 2Interactive | |
| #2877 | Imprecise Permutation SortNWRRC 2021Interactive | |
| #3095 | Escape RouteJOISC 2021 Day 2Interactive | |
| #3273 | Datalab北大集训 2021 Day 2CTT 2021 Day 2Interactive | |
| #3459 | SpockKTH Challenge 2015Interactive | |
| #3510 | Super Dango MakerJOISC 2022 Day 4InteractiveJOIG 2022 Day 2 | |
| #3516 | Dungeon CrawlerGCPC 2019Interactive | |
| #3519 | Game of Falling BlocksGCPC 2019Interactive | |
| #3555 | Chameleon's LoveJOISC 2020 Day 2Interactive | |
| #3675 | Interactive Array GuessingNorthern Subregional 2018Interactive | |
| #3891 | Destabilized DroneBAPC 2020Interactive | |
| #3913 | Badroadville mayoral election8th BSUIR Open Programming Championship FinalInteractive | |
| #3924 | Dungeon DawdlerNCPC 2019Interactive | |
| #3957 | CoinsBergen Open 2021Interactive | |
| #4205 | Art CollectionsBaltic OI 2022 Day 1Interactive | |
| #4218 | Hidden GraphRuCode 2020 Division A+B ChampionshipInteractive | |
| #4301 | Points and SegmentsVKOSHP 2020Interactive | |
| #4401 | PrizeCEOI 2022 Day 1Interactive | |
| #4410 | 隆CTS 2022 Day 2Interactive | |