| #20801 | Subset EqualityUSACO 2022 US Open Silver | |
| #20802 | COW OperationsUSACO 2022 US Open Silver | |
| #20803 | Apple CatchingUSACO 2022 US Open Gold | |
| #20804 | Pair ProgrammingUSACO 2022 US Open Gold | |
| #20805 | Balancing a TreeUSACO 2022 US Open Gold | |
| #20806 | Cow CollegeUSACO 2022 December Bronze | |
| #20807 | Feeding the CowsUSACO 2022 December Bronze | |
| #20808 | Reverse EngineeringUSACO 2022 December Bronze | |
| #20809 | Barn TreeUSACO 2022 December Silver | |
| #20810 | Circular BarnUSACO 2022 December Silver | |
| #20811 | Range ReconstructionUSACO 2022 December Silver | |
| #20812 | Bribing FriendsUSACO 2022 December Gold | |
| #20813 | MountainsUSACO 2022 December Gold | |
| #20814 | Strongest Friendship GroupUSACO 2022 December Gold | |
| #20815 | LeadersUSACO 2023 January Bronze | |
| #20816 | Air Cownditioning IIUSACO 2023 January Bronze | |
| #20817 | Moo OperationsUSACO 2023 January Bronze | |
| #20818 | Find and ReplaceUSACO 2023 January Silver | |
| #20819 | Following DirectionsUSACO 2023 January Silver | |
| #20820 | Moo RouteUSACO 2023 January Silver | |
| #20821 | Find and ReplaceUSACO 2023 January Gold | |
| #20822 | Lights OffUSACO 2023 January Gold | |
| #20823 | Moo RouteUSACO 2023 January Gold | |
| #20824 | Hungry CowUSACO 2023 February Bronze | |
| #20825 | Stamp GridUSACO 2023 February Bronze | |
| #20826 | Watching MoolooUSACO 2023 February Bronze | |
| #20827 | BakeryUSACO 2023 February Silver | |
| #20828 | Cow-libiUSACO 2023 February Silver | |
| #20829 | Moo Route IIUSACO 2023 February Silver | |
| #20830 | Equal Sum SubarraysUSACO 2023 February Gold | |
| #20831 | Fertilizing PasturesUSACO 2023 February Gold | |
| #20832 | Piling PapersUSACO 2023 February Gold | |
| #20833 | FEBUSACO 2023 US Open Bronze | |
| #20834 | Moo LanguageUSACO 2023 US Open Bronze | |
| #20835 | Rotate and ShiftUSACO 2023 US Open Bronze | |
| #20836 | Milk SumUSACO 2023 US Open Silver | |
| #20837 | Field DayUSACO 2023 US Open Silver | |
| #20838 | PareidoliaUSACO 2023 US Open Silver | |
| #20839 | Custodial CleanupUSACO 2023 US Open Gold | |
| #20840 | PareidoliaUSACO 2023 US Open Gold | |
| #20841 | Tree MergingUSACO 2023 US Open Gold | |
| #20842 | Candy Cane FeastUSACO 2023 December Bronze | |
| #20843 | Cowntact Tracing 2USACO 2023 December Bronze | |
| #20844 | Farmer John Actually FarmsUSACO 2023 December Bronze | |
| #20845 | Bovine AcrobaticsUSACO 2023 December Silver | |
| #20846 | Cycle CorrespondenceUSACO 2023 December Silver | |
| #20847 | Target PracticeUSACO 2023 December Silver | |
| #20848 | Flight RoutesUSACO 2023 December Gold | |
| #20849 | Minimum Longest TripUSACO 2023 December Gold | |
| #20850 | Haybale DistributionUSACO 2023 December Gold | |
| #20851 | Majority OpinionUSACO 2024 January Bronze | |
| #20852 | CannonballUSACO 2024 January Bronze | |
| #20853 | Balancing BacteriaUSACO 2024 January Bronze | |
| #20854 | CowmpetencyUSACO 2024 January Silver | |
| #20855 | Potion FarmingUSACO 2024 January Silver | |
| #20856 | CowlendarUSACO 2024 January Silver | |
| #20857 | Walking in ManhattanUSACO 2024 January Gold | |
| #20858 | CowmpetencyUSACO 2024 January Gold | |
| #20859 | Nap SortUSACO 2024 January Gold | |
| #20860 | Palindrome GameUSACO 2024 February Bronze | |
| #20861 | Milk ExchangeUSACO 2024 February Bronze | |
| #20862 | Maximizing ProductivityUSACO 2024 February Bronze | |
| #20863 | Target Practice IIUSACO 2024 February Silver | |
| #20864 | Test TubesUSACO 2024 February Silver | |
| #20865 | MoorblesUSACO 2024 February Silver | |
| #20866 | Bessla MotorsUSACO 2024 February Gold | |
| #20867 | Milk ExchangeUSACO 2024 February Gold | |
| #20868 | Quantum MoochanicsUSACO 2024 February Gold | |
| #20869 | Logical MoosUSACO 2024 US Open Bronze | |
| #20870 | Walking Along a FenceUSACO 2024 US Open Bronze | |
| #20871 | Farmer John's Favorite PermutationUSACO 2024 US Open Bronze | |
| #20872 | Bessie's InterviewUSACO 2024 US Open Silver | |
| #20873 | Painting Fence PostsUSACO 2024 US Open Silver | |
| #20874 | The 'Winning' GeneUSACO 2024 US Open Silver | |
| #20875 | CowreographyUSACO 2024 US Open Gold | |
| #20876 | Grass SegmentsUSACO 2024 US Open Gold | |
| #20877 | Smaller AveragesUSACO 2024 US Open Gold | |
| #20878 | Roundabout RoundingUSACO 2024 December Bronze | |
| #20879 | Farmer John's Cheese BlockUSACO 2024 December Bronze | |
| #20880 | It's Mooin' TimeUSACO 2024 December Bronze | |
| #20881 | Cake GameUSACO 2024 December Silver | |
| #20882 | DeforestationUSACO 2024 December Silver | |
| #20883 | 2D Conveyor BeltUSACO 2024 December Silver | |
| #20884 | CowdependenceUSACO 2024 December Gold | |
| #20885 | Interstellar IntervalsUSACO 2024 December Gold | |
| #20886 | Job CompletionUSACO 2024 December Gold | |
| #20887 | Astral SuperpositionUSACO 2025 January Bronze | |
| #20888 | It's Mooin' Time IIUSACO 2025 January Bronze | |
| #20889 | Cow CheckupsUSACO 2025 January Bronze | |
| #20890 | Cow CheckupsUSACO 2025 January Silver | |
| #20891 | Farmer John's Favorite OperationUSACO 2025 January Silver | |
| #20892 | Table RecoveryUSACO 2025 January Silver | |
| #20893 | Median HeapUSACO 2025 January Gold | |
| #20894 | Reachable PairsUSACO 2025 January Gold | |
| #20895 | Photo OpUSACO 2025 January Gold | |
| #20896 | ReflectionUSACO 2025 February Bronze | |
| #20897 | Making MexesUSACO 2025 February Bronze | |
| #20898 | Printing SequencesUSACO 2025 February Bronze | |
| #20899 | The Best LineupUSACO 2025 February Silver | |
| #20900 | Vocabulary QuizUSACO 2025 February Silver | |