| #11004 | Mr. Panda and DominoesShanghai Regional 2019 | |
| #11005 | Prefix CodeShanghai Regional 2019 | |
| #11006 | MazeShanghai Regional 2019 | |
| #11007 | Spanning Tree RemovalShanghai Regional 2019 | |
| #11008 | Cave EscapeShanghai Regional 2019 | |
| #11009 | A Simple Problem On A TreeShanghai Regional 2019 | |
| #11010 | Play the game SETShanghai Regional 2019 | |
| #11011 | Tree PartitionShanghai Regional 2019 | |
| #11012 | PortalShanghai Regional 2019 | |
| #11013 | Bob's Poor MathShanghai Regional 2019 | |
| #11014 | Color GraphShanghai Regional 2019 | |
| #11015 | Light It DownShanghai Regional 2019 | |
| #11016 | Blood Pressure GameShanghai Regional 2019 | |
| #11017 | Social DistancingAceSrc and chenjb Contest | |
| #11018 | Mask AllocationAceSrc and chenjb Contest | |
| #11019 | A National PandemicAceSrc and chenjb Contest | |
| #11020 | Fake NewsAceSrc and chenjb Contest | |
| #11021 | NeoMole SynthesisAceSrc and chenjb Contest | |
| #11022 | Tokens on the TreeAceSrc and chenjb Contest | |
| #11023 | Topo CountingAceSrc and chenjb Contest | |
| #11024 | DividingAceSrc and chenjb Contest | |
| #11025 | Valuable ForestsAceSrc and chenjb Contest | |
| #11026 | Pointer AnalysisAceSrc and chenjb Contest | |
| #11065 | ParadesCERC 2014 | |
| #11066 | Mountainous landscapeCERC 2014 | |
| #11067 | SumsCERC 2014 | |
| #11068 | WheelsCERC 2014 | |
| #11069 | Can't stop playingCERC 2014 | |
| #11070 | VocabularyCERC 2014 | |
| #11071 | Virus synthesisCERC 2014 | |
| #11072 | Good morning!CERC 2014 | |
| #11073 | BricksCERC 2014 | |
| #11074 | Pork barrelCERC 2014 | |
| #11075 | The ImpCERC 2014 | |
| #11076 | Outer space invadersCERC 2014 | |
| #11077 | ASCII AdditionCERC 2015 | |
| #11078 | Book BordersCERC 2015 | |
| #11079 | Cow ConfinementCERC 2015 | |
| #11080 | Digit DivisionCERC 2015 | |
| #11081 | Export EstimateCERC 2015 | |
| #11082 | Frightful FormulaCERC 2015 | |
| #11083 | Greenhouse GrowthCERC 2015 | |
| #11084 | Hovering HornetCERC 2015 | |
| #11085 | Ice IgloosCERC 2015 | |
| #11086 | Juice JunctionsCERC 2015 | |
| #11087 | Kernel KnightsCERC 2015 | |
| #11088 | Looping LabyrinthCERC 2015 | |
| #11089 | Appearance AnalysisCERC 2016 | |
| #11090 | Bipartite BlanketCERC 2016 | |
| #11091 | Convex ContourCERC 2016 | |
| #11092 | Dancing DisksCERC 2016 | |
| #11093 | Easy EquationCERC 2016 | |
| #11094 | Free FigurinesCERC 2016 | |
| #11095 | Geohash GridCERC 2016 | |
| #11096 | Hangar HurdlesCERC 2016 | |
| #11097 | Invisible IntegersCERC 2016 | |
| #11098 | Jazz JourneyCERC 2016 | |
| #11099 | Key KnockingCERC 2016 | |
| #11100 | Lost LogicCERC 2016 | |