| #9020 | 测测你的半平面修改查询 | |
| #9031 | 五彩斑斓的世界Ynoi 2018 | |
| #9032 | 末日时在做什么？有没有空？可以来拯救吗？Ynoi 2018 | |
| #9033 | 未来日记Ynoi 2018 | |
| #9034 | 天降之物Ynoi 2018 | |
| #9035 | GOSICKYnoi 2018 | |
| #9036 | 駄作Ynoi 2018 | |
| #9037 | Ancient Maps, Hidden DangerShanghai Regional 2024 | |
| #9038 | Basic Graph AlgorithmShanghai Regional 2024 | |
| #9039 | Conquer the MultiplesShanghai Regional 2024 | |
| #9040 | Decrease and SwapShanghai Regional 2024 | |
| #9041 | Equal MeasureShanghai Regional 2024 | |
| #9042 | Fast BogosortShanghai Regional 2024 | |
| #9043 | Geometry TaskShanghai Regional 2024 | |
| #9044 | Hexagon PuzzleShanghai Regional 2024 | |
| #9045 | In Search of the Ultimate ArtifactShanghai Regional 2024 | |
| #9046 | Just-in-Time Render AnalysisShanghai Regional 2024 | |
| #9047 | Knights of NightShanghai Regional 2024 | |
| #9048 | Lazy SusanShanghai Regional 2024 | |
| #9049 | Machine Learning with PenguinsShanghai Regional 2024 | |
| #9051 | ABC StringMid-Central USA Regional 2023Southeast USA Regional 2023South Central USA Regional 2023Pacific Northwest Regional 2023 | |
| #9052 | Balanced Tree PathMid-Central USA Regional 2023Southeast USA Regional 2023South Central USA Regional 2023Pacific Northwest Regional 2023 | |
| #9053 | Cramming for FinalsMid-Central USA Regional 2023Southeast USA Regional 2023South Central USA Regional 2023Pacific Northwest Regional 2023 | |
| #9054 | Ordered Problem SetMid-Central USA Regional 2023Southeast USA Regional 2023South Central USA Regional 2023Pacific Northwest Regional 2023 | |
| #9055 | Eccentric ExcursionMid-Central USA Regional 2023Southeast USA Regional 2023South Central USA Regional 2023Pacific Northwest Regional 2023 | |
| #9056 | Matrix FraudMid-Central USA Regional 2023Southeast USA Regional 2023South Central USA Regional 2023Pacific Northwest Regional 2023 | |
| #9057 | On-Call TeamMid-Central USA Regional 2023Southeast USA Regional 2023South Central USA Regional 2023Pacific Northwest Regional 2023 | |
| #9058 | Range EditingMid-Central USA Regional 2023Southeast USA Regional 2023South Central USA Regional 2023Pacific Northwest Regional 2023 | |
| #9059 | Item SelectionMid-Central USA Regional 2023Southeast USA Regional 2023South Central USA Regional 2023Pacific Northwest Regional 2023 | |
| #9060 | Sequence GuessingMid-Central USA Regional 2023Southeast USA Regional 2023South Central USA Regional 2023Pacific Northwest Regional 2023Interactive | |
| #9061 | Streets BehindMid-Central USA Regional 2023Southeast USA Regional 2023South Central USA Regional 2023Pacific Northwest Regional 2023 | |
| #9062 | Segment DrawingMid-Central USA Regional 2023Southeast USA Regional 2023South Central USA Regional 2023Pacific Northwest Regional 2023 | |
| #9063 | Champernowne VerificationMid-Central USA Regional 2023Southeast USA Regional 2023South Central USA Regional 2023Pacific Northwest Regional 2023 | |
| #9064 | A Cappella RecordingMid-Central USA Regional 2023Southeast USA Regional 2023South Central USA Regional 2023Pacific Northwest Regional 2023 | |
| #9065 | Acceptable Seating ArrangementsMid-Central USA Regional 2023Southeast USA Regional 2023South Central USA Regional 2023Pacific Northwest Regional 2023 | |
| #9066 | Four Die RollsMid-Central USA Regional 2023Southeast USA Regional 2023South Central USA Regional 2023Pacific Northwest Regional 2023 | |
| #9067 | Rampant GrowthMid-Central USA Regional 2023Southeast USA Regional 2023South Central USA Regional 2023Pacific Northwest Regional 2023 | |
| #9068 | Triple SevensMid-Central USA Regional 2023Southeast USA Regional 2023South Central USA Regional 2023Pacific Northwest Regional 2023 | |
| #9069 | TrainingMid-Central USA Regional 2023Southeast USA Regional 2023South Central USA Regional 2023Pacific Northwest Regional 2023 | |
| #9070 | Candy FactoryPacific Northwest Regional 2023 | |
| #9071 | Magic CubePacific Northwest Regional 2023 | |
| #9072 | Array Merge | |
| #9073 | Array Modify | |
| #9074 | Binary Tree | |
| #9075 | Bits Reverse | |
| #9076 | Cartesian Tree | |
| #9077 | Equations | |
| #9078 | Greatest Common Divisor | |
| #9079 | Hamming Distance | |
| #9080 | Item Exchange | |
| #9081 | Stone Game | |
| #9082 | The Coin | |
| #9083 | Two Ants | |
| #9084 | 掉进兔子洞Ynoi 2016 | |
| #9085 | 这是我自己的发明Ynoi 2016 | |
| #9086 | 镜子里的昆虫Ynoi 2016 | |
| #9087 | 炸脖龙 IYnoi 2016 | |
| #9088 | 谁的梦Ynoi 2016 | |
| #9089 | 炸脖龙 IIYnoi 2016 | |
| #9090 | 由乃的 OJYnoi 2017 | |
| #9091 | 由乃的玉米田Ynoi 2017 | |
| #9092 | 由乃打扑克Ynoi 2017 | |
| #9093 | 트리KOI TST 2019 Day 1 | |
| #9094 | 염소KOI TST 2019 Day 1 | |
| #9095 | 산유국KOI TST 2019 Day 1 | |
| #9096 | 방송국KOI TST 2019 Day 1 | |
| #9097 | 새싹KOI TST 2019 Day 2 | |
| #9098 | 외계 선인장KOI TST 2019 Day 2 | |
| #9099 | 다각형KOI TST 2019 Day 2 | |
| #9100 | 대평원KOI TST 2019 Day 2 | |