| #13301 | VouchersXIX Olimpiada Informatyczna – II etapPOI 2011/2012 Stage 2 | |
| #13302 | CloakroomXIX Olimpiada Informatyczna – II etapPOI 2011/2012 Stage 2 | |
| #13303 | A Horrible PoemXIX Olimpiada Informatyczna – II etapPOI 2011/2012 Stage 2 | |
| #13304 | Fibonacci RepresentationXIX Olimpiada Informatyczna – II etapPOI 2011/2012 Stage 2 | |
| #13305 | SquarksXIX Olimpiada Informatyczna – III etapPOI 2011/2012 Stage 3 | |
| #13306 | LicytacjaXIX Olimpiada Informatyczna – III etapPOI 2011/2012 Stage 3Interactive | |
| #13307 | SalariesXIX Olimpiada Informatyczna – III etapPOI 2011/2012 Stage 3 | |
| #13308 | Leveling GroundXIX Olimpiada Informatyczna – III etapPOI 2011/2012 Stage 3 | |
| #13309 | Minimalist SecurityXIX Olimpiada Informatyczna – III etapPOI 2011/2012 Stage 3 | |
| #13310 | Warehouse StoreXIX Olimpiada Informatyczna – III etapPOI 2011/2012 Stage 3 | |
| #13311 | PrefixuffixXIX Olimpiada Informatyczna – III etapPOI 2011/2012 Stage 3 | |
| #13312 | Price ListXX Olimpiada Informatyczna – I etapPOI 2012/2013 Stage 1 | |
| #13313 | TapestriesXX Olimpiada Informatyczna – I etapPOI 2012/2013 Stage 1 | |
| #13314 | MultidrinkXX Olimpiada Informatyczna – I etapPOI 2012/2013 Stage 1 | |
| #13315 | TaxisXX Olimpiada Informatyczna – I etapPOI 2012/2013 Stage 1 | |
| #13316 | Take-outXX Olimpiada Informatyczna – I etapPOI 2012/2013 Stage 1 | |
| #13317 | WalkXX Olimpiada Informatyczna – II etapPOI 2012/2013 Stage 2 | |
| #13318 | InspectorXX Olimpiada Informatyczna – II etapPOI 2012/2013 Stage 2 | |
| #13319 | Triumphal archXX Olimpiada Informatyczna – II etapPOI 2012/2013 Stage 2 | |
| #13320 | KonewkaXX Olimpiada Informatyczna – II etapPOI 2012/2013 Stage 2Interactive | |
| #13321 | Tales of seafaringXX Olimpiada Informatyczna – II etapPOI 2012/2013 Stage 2 | |
| #13322 | Tower Defense GameXX Olimpiada Informatyczna – III etapPOI 2012/2013 Stage 3 | |
| #13323 | BytecomputerXX Olimpiada Informatyczna – III etapPOI 2012/2013 Stage 3 | |
| #13324 | Gdzie jest jedynka?XX Olimpiada Informatyczna – III etapPOI 2012/2013 Stage 3Interactive | |
| #13325 | Colorful ChainXX Olimpiada Informatyczna – III etapPOI 2012/2013 Stage 3 | |
| #13326 | MazeXX Olimpiada Informatyczna – III etapPOI 2012/2013 Stage 3 | |
| #13327 | LaserXX Olimpiada Informatyczna – III etapPOI 2012/2013 Stage 3 | |
| #13328 | PolarizationXX Olimpiada Informatyczna – III etapPOI 2012/2013 Stage 3 | |
| #13329 | Counting Cactus (Hard version) | |
| #13330 | Dirichlet $k$-th root (Hard version) | |
| #13335 | 哈希杀手ULR #2 | |
| #13339 | 你将如闪电般归来UR #21 | |
| #13343 | 新年的军队Goodbye Gengzi | |
| #13347 | 新年的复读机Goodbye Jihai | |
| #13348 | 新年的追逐战Goodbye Jihai | |
| #13350 | LjetoCOCI 2021/2022 Contest #1 | |
| #13351 | KamenčićiCOCI 2021/2022 Contest #1 | |
| #13352 | LogičariCOCI 2021/2022 Contest #1 | |
| #13353 | SetCOCI 2021/2022 Contest #1 | |
| #13354 | VolontiranjeCOCI 2021/2022 Contest #1 | |
| #13355 | KaučukCOCI 2021/2022 Contest #2 | |
| #13356 | KutijeCOCI 2021/2022 Contest #2 | |
| #13357 | HiperkockaCOCI 2021/2022 Contest #2 | |
| #13358 | MagnetiCOCI 2021/2022 Contest #2 | |
| #13359 | OsumnjičeniCOCI 2021/2022 Contest #2 | |
| #13360 | Desni klikCOCI 2022/2023 Contest #1 | |
| #13361 | ČokoladeCOCI 2022/2023 Contest #1 | |
| #13362 | BerilijCOCI 2022/2023 Contest #1 | |
| #13363 | IkseviCOCI 2022/2023 Contest #1 | |
| #13364 | NeboderiCOCI 2022/2023 Contest #1 | |
| #13365 | TramvajiCOCI 2022/2023 Contest #2 | |
| #13366 | EkspertCOCI 2022/2023 Contest #2 | |
| #13367 | LampiceCOCI 2022/2023 Contest #2 | |
| #13368 | PrijateljiceCOCI 2022/2023 Contest #2 | |
| #13370 | EstimathonCOCI 2022/2023 Contest #3 | |
| #13371 | DirigentCOCI 2022/2023 Contest #3 | |
| #13372 | BaltazarCOCI 2022/2023 Contest #3 | |
| #13373 | BomboniCOCI 2022/2023 Contest #3 | |
| #13374 | SkrivačaCOCI 2022/2023 Contest #3 | |
| #13375 | 7KrokodsCOCI 2022/2023 Contest #4 | |
| #13376 | ZrinkaCOCI 2022/2023 Contest #4 | |
| #13377 | BojanjeCOCI 2022/2023 Contest #4 | |
| #13378 | MrežaCOCI 2022/2023 Contest #4 | |
| #13379 | VrstaCOCI 2022/2023 Contest #4 | |
| #13380 | KalendarCOCI 2022/2023 Contest #5 | |
| #13381 | DiskursCOCI 2022/2023 Contest #5 | |
| #13382 | LogaritamCOCI 2022/2023 Contest #5 | |
| #13383 | SlastičarnicaCOCI 2022/2023 Contest #5 | |
| #13384 | ZastaveCOCI 2022/2023 Contest #5 | |
| #13385 | KemijaCOCI 2021/2022 Contest #5 | |
| #13386 | DijamantCOCI 2021/2022 Contest #5 | |
| #13387 | FliperCOCI 2021/2022 Contest #5 | |
| #13388 | RadioCOCI 2021/2022 Contest #5 | |
| #13389 | UsmjeravanjeCOCI 2021/2022 Contest #5 | |
| #13390 | MedCOCI 2021/2022 Contest #6 | |
| #13391 | ZemljišteCOCI 2021/2022 Contest #6 | |
| #13392 | NabojCOCI 2021/2022 Contest #6 | |
| #13393 | PalindromiCOCI 2021/2022 Contest #6 | |
| #13394 | SuperpozicijaCOCI 2021/2022 Contest #6 | |
| #13395 | PatkiceCOCI 2020/2021 Contest #1 | |
| #13396 | BajkaCOCI 2020/2021 Contest #1 | |
| #13397 | 3D HistogramCOCI 2020/2021 Contest #1 | |
| #13398 | PapričiceCOCI 2020/2021 Contest #1 | |
| #13399 | TenisCOCI 2020/2021 Contest #1 | |
| #13400 | CrtanjeCOCI 2020/2021 Contest #2 | |