| #3801 | Cancer DNAYokohama Regional 2021 | |
| #3802 | “Even” DivisionYokohama Regional 2021 | |
| #3803 | The Cross Covers EverythingYokohama Regional 2021 | |
| #3804 | Distributing the TreasureYokohama Regional 2021 | |
| #3805 | PromotionsSWERC 2015 | |
| #3806 | Black ViennaSWERC 2015 | |
| #3807 | Canvas PaintingSWERC 2015 | |
| #3808 | Dice CupSWERC 2015 | |
| #3809 | Wooden SignsSWERC 2015 | |
| #3810 | LandscapingSWERC 2015 | |
| #3811 | Game of CardsSWERC 2015 | |
| #3812 | Sheldon NumbersSWERC 2015 | |
| #3813 | Text ProcessorSWERC 2015 | |
| #3814 | Saint John FestivalSWERC 2015 | |
| #3815 | Weak pseudorandom generatorAMPPZ 2016Moscow Pre-Finals Workshops 2022 Day 2 | |
| #3816 | Home alone: Johnny lost in New YorkAMPPZ 2016Moscow Pre-Finals Workshops 2022 Day 2 | |
| #3817 | Generating PolygonsAMPPZ 2016Moscow Pre-Finals Workshops 2022 Day 2 | |
| #3818 | GrapesAMPPZ 2016 | |
| #3819 | TaxiAMPPZ 2016Moscow Pre-Finals Workshops 2022 Day 2 | |
| #3820 | Antisocial networkAMPPZ 2016Moscow Pre-Finals Workshops 2022 Day 2 | |
| #3821 | Parking LotAMPPZ 2016Moscow Pre-Finals Workshops 2022 Day 2 | |
| #3822 | AnagramsAMPPZ 2016Moscow Pre-Finals Workshops 2022 Day 2 | |
| #3823 | Mountain hikeAMPPZ 2016Moscow Pre-Finals Workshops 2022 Day 2 | |
| #3824 | Rock, paper, scissorsAMPPZ 2016 | |
| #3825 | Johnny-Bohr modelAMPPZ 2016Moscow Pre-Finals Workshops 2022 Day 2 | |
| #3826 | Constitutional TribunalAMPPZ 2016Moscow Pre-Finals Workshops 2022 Day 2 | |
| #3827 | Alan TuringTaiwan Online Programming Contest 2016 | |
| #3828 | László BabaiTaiwan Online Programming Contest 2016 | |
| #3829 | Stephen CookTaiwan Online Programming Contest 2016 | |
| #3830 | Edsger DijkstraTaiwan Online Programming Contest 2016 | |
| #3831 | Jack EdmondsTaiwan Online Programming Contest 2016 | |
| #3832 | Robert FloydTaiwan Online Programming Contest 2016 | |
| #3833 | Kurt GödelTaiwan Online Programming Contest 2016 | |
| #3834 | Richard HammingTaiwan Online Programming Contest 2016 | |
| #3835 | OracleTaiwan Online Programming Contest 2016 | |
| #3836 | So I'll Max Out My Constructive Algorithm SkillsMacau Regional 2021 | |
| #3837 | The Matching System Macau Regional 2021 | |
| #3838 | Laser TrapMacau Regional 2021 | |
| #3839 | Shortest Path Fast Algorithm Macau Regional 2021 | |
| #3840 | Pass the Ball!Macau Regional 2021 | |
| #3841 | Sandpile on Clique Macau Regional 2021 | |
| #3842 | Cyclic Buffer Macau Regional 2021 | |
| #3843 | Permutation on TreeMacau Regional 2021 | |
| #3844 | LCS Spanning TreeMacau Regional 2021 | |
| #3845 | Colorful TreeMacau Regional 2021 | |
| #3846 | Link-Cut TreeMacau Regional 2021 | |
| #3847 | AirlineCERC 2021 | |
| #3848 | Building on the MoonCERC 2021 | |
| #3849 | Cactus cuttingCERC 2021 | |
| #3850 | DJ DarkoCERC 2021 | |
| #3851 | FishingCERC 2021 | |
| #3852 | LettersCERC 2021 | |
| #3853 | Lines in a gridCERC 2021 | |
| #3854 | RadarCERC 2021 | |
| #3855 | Regional developmentCERC 2021 | |
| #3856 | RepetitionsCERC 2021 | |
| #3857 | Single-track railwayCERC 2021 | |
| #3858 | Systematic salesmanCERC 2021 | |
| #3859 | Organizing SWERCSWERC 2021 | |
| #3860 | Drone PhotoSWERC 2021 | |
| #3861 | Il Derby della MadonninaSWERC 2021 | |
| #3862 | Ice Cream ShopSWERC 2021 | |
| #3863 | Evolution of WeaselsSWERC 2021 | |
| #3864 | Bottle ArrangementsSWERC 2021 | |
| #3865 | Round TableSWERC 2021 | |
| #3866 | Pandemic RestrictionsSWERC 2021 | |
| #3867 | AntennasSWERC 2021 | |
| #3868 | BoundarySWERC 2021 | |
| #3869 | Gastronomic EventSWERC 2021 | |
| #3870 | Circular MazeSWERC 2021 | |
| #3871 | Voting CitiesNOI 2022 Final | |
| #3872 | Gym BadgesNOI 2022 Final | |
| #3873 | TowersNOI 2022 Final | |
| #3874 | GrapevineNOI 2022 Final | |
| #3875 | FruitsNOI 2022 Final | |
| #3876 | Attack on Alpha-ZetGCPC 2018 | |
| #3877 | Battle RoyaleGCPC 2018 | |
| #3878 | Coolest Ski RouteGCPC 2018 | |
| #3879 | Down the PyramidGCPC 2018 | |
| #3880 | Expired LicenseGCPC 2018 | |
| #3881 | Fighting MonstersGCPC 2018 | |
| #3882 | GPSGCPC 2018 | |
| #3883 | Hyper IlluminatiGCPC 2018 | |
| #3884 | It's Time for a MontageGCPC 2018 | |
| #3885 | Jigsaw PuzzleGCPC 2018 | |
| #3886 | Kitchen Cable ChaosGCPC 2018 | |
| #3887 | Logic PuzzleGCPC 2018 | |
| #3888 | MountaineersGCPC 2018 | |
| #3889 | Balanced BreakdownBAPC 2020 | |
| #3890 | Corrupted Contest BAPC 2020 | |
| #3891 | Destabilized DroneBAPC 2020Interactive | |
| #3892 | Efficiently ElevatedBAPC 2020 | |
| #3893 | Family FaresBAPC 2020 | |
| #3894 | Generator GridBAPC 2020 | |
| #3895 | Hungry HenkBAPC 2020 | |
| #3896 | Incomplete ImplementationBAPC 2020 | |
| #3897 | JigsawBAPC 2020 | |
| #3898 | Agile permutation10th BSUIR Open Programming Championship Semifinal | |
| #3899 | BSUIR Open X10th BSUIR Open Programming Championship Semifinal | |
| #3900 | Crossed out letter10th BSUIR Open Programming Championship Semifinal | |