| #18501 | BarabashkaXXXIX St. Petersburg State University ChampionshipOpen Tests | |
| #18502 | Compare Continued FractionsXXXIX St. Petersburg State University Championship | |
| #18503 | Graph ColoringXXXIX St. Petersburg State University Championship | |
| #18504 | ConvolutionXXXIX St. Petersburg State University Championship | |
| #18505 | Octopus's GardenXXXIX St. Petersburg State University Championship | |
| #18506 | PentagonXXXIX St. Petersburg State University Championship | |
| #18507 | Squares GameXXXIX St. Petersburg State University ChampionshipInteractive | |
| #18508 | Removing VerticesXXXIX St. Petersburg State University Championship | |
| #18509 | Two PathsXXXIX St. Petersburg State University Championship | |
| #18510 | Two RectanglesXXXIX St. Petersburg State University Championship | |
| #18511 | Apple and CinnamonACM-HK Programming Contest 2026 | |
| #18512 | Don't Look Back in AngerACM-HK Programming Contest 2026 | |
| #18513 | Game: Adversarial Distance OracleACM-HK Programming Contest 2026 | |
| #18514 | Game: Coin FlipACM-HK Programming Contest 2026 | |
| #18515 | Game: Cursor MinimumACM-HK Programming Contest 2026Interactive | |
| #18516 | Game: Binary StringACM-HK Programming Contest 2026Interactive | |
| #18517 | November RainACM-HK Programming Contest 2026 | |
| #18518 | The Real Folk BluesACM-HK Programming Contest 2026 | |
| #18519 | The Space between Two WorldsACM-HK Programming Contest 2026 | |
| #18529 | ICPC Contest Resolver | |
| #18530 | Horns and Hooves | |
| #18531 | String | |
| #18532 | Books | |
| #18533 | Big Bed | |
| #18534 | Antichamber | |
| #18535 | The weasel in the hen coop | |
| #18536 | Colonization | |
| #18537 | Triangles | |
| #18538 | Swimming | |
| #18539 | Faster Than Light | |
| #18540 | Construction of Chand Baori | |
| #18541 | Devil's Hell deLiveryXL St. Petersburg State University Championship | |
| #18542 | Domino on TorusXL St. Petersburg State University Championship | |
| #18543 | Small Numbers SearchXL St. Petersburg State University Championship | |
| #18544 | Maze in a ForestXL St. Petersburg State University Championship | |
| #18545 | GrammarXL St. Petersburg State University Championship | |
| #18546 | Yet Another Point Searching ProblemXL St. Petersburg State University Championship | |
| #18547 | NanobugsXL St. Petersburg State University Championship | |
| #18548 | Non-Shortest PathXL St. Petersburg State University Championship | |
| #18549 | Composition of PolynomialsXL St. Petersburg State University Championship | |
| #18550 | PotentialXL St. Petersburg State University Championship | |
| #18551 | What the Flex?XL St. Petersburg State University Championship | |
| #18552 | Convenient CoinsPetrozavodsk Winter 2026 Day 5 | |
| #18553 | Shortest PathPetrozavodsk Winter 2026 Day 5 | |
| #18554 | Paths in MatrixPetrozavodsk Winter 2026 Day 5 | |
| #18555 | Maximum Beauty ArrayPetrozavodsk Winter 2026 Day 5 | |
| #18556 | Buy for More, Sell for LessPetrozavodsk Winter 2026 Day 5 | |
| #18557 | Graph StabilizationPetrozavodsk Winter 2026 Day 5 | |
| #18558 | Find a Better StringPetrozavodsk Winter 2026 Day 5Interactive | |
| #18559 | Inverted SubarrayPetrozavodsk Winter 2026 Day 5 | |
| #18560 | Red-Black GraphPetrozavodsk Winter 2026 Day 5 | |
| #18561 | Disks and GemsPetrozavodsk Winter 2026 Day 5 | |
| #18562 | Three Hundred QueriesPetrozavodsk Winter 2026 Day 5Interactive | |
| #18563 | Distinct/Insertion QueriesPetrozavodsk Winter 2026 Day 5Interactive | |
| #18564 | The Less I Know The BetterMCO 2026 | |
| #18565 | Team SelectionMCO 2026 | |
| #18566 | Making CombosMCO 2026 | |
| #18567 | Rain CollectionMCO 2026 | |
| #18568 | Maximum sum with swapsXVII All-Siberian Programming Contest Online | |
| #18569 | InspectionXVII All-Siberian Programming Contest Online | |
| #18570 | Karmon goXVII All-Siberian Programming Contest Online | |
| #18571 | Park trailsXVII All-Siberian Programming Contest Online | |
| #18572 | AutocompleteXVII All-Siberian Programming Contest Online | |
| #18573 | Amazing DivisibilityXVII All-Siberian Programming Contest Online | |
| #18574 | Group tournamentXVII All-Siberian Programming Contest Online | |
| #18575 | MultiplierXVII All-Siberian Programming Contest Online | |
| #18576 | Guess the moduloXVII All-Siberian Programming Contest OnlineInteractive | |
| #18577 | CartsXVII All-Siberian Programming Contest Online | |
| #18578 | School informaticsXVII All-Siberian Programming Contest Online | |
| #18579 | Give the Parabellum awayXVII All-Siberian Programming Contest Online | |
| #18580 | 제4회 디미고 프로그래밍 챌린지 | |
| #18581 | 학습지 가져오기 | |
| #18582 | 굴려라 주사위! | |
| #18583 | 스택과 팰린드롬 | |
| #18584 | MEXMEX | |
| #18585 | 디미고 통제 | |
| #18586 | 회귀의 그래프 | |
| #18587 | 보석 게임 | |
| #18588 | 최단 시간 | |
| #18589 | 트리 복제 | |
| #18590 | ibasic Sequences | |
| #18591 | Factorial Attack | |
| #18592 | 최단 거리와 쿼리 | |
| #18593 | 아름다운 강산 | |
| #18594 | PaprikeCroatian OI 2018 | |
| #18595 | PickCroatian OI 2018 | |
| #18596 | SvjetlostCroatian OI 2018 | |
| #18597 | ZagonetkaInteractiveCroatian OI 2018 | |