| #8101 | WaterfronteJOI 2021 Day 2 | |
| #8102 | Mall / Galeria handlowaPetrozavodsk Summer 2018 Day 5PA 2017 Final | |
| #8103 | ProductPetrozavodsk Summer 2018 Day 5 | |
| #8104 | Keyboard / KlawiaturaPetrozavodsk Summer 2018 Day 5PA 2017 Final | |
| #8105 | Machine LearningPetrozavodsk Summer 2018 Day 5PA 2017 Final | |
| #8106 | MosaicPetrozavodsk Summer 2018 Day 5 | |
| #8107 | PermutationPetrozavodsk Summer 2018 Day 5 | |
| #8108 | HomeworkPetrozavodsk Summer 2018 Day 5 | |
| #8109 | Postcards / PrzesyłPetrozavodsk Summer 2018 Day 5PA 2017 Final | |
| #8110 | Addition / SumowaniePetrozavodsk Summer 2018 Day 5PA 2017 Final | |
| #8111 | Coaches / TrenerzyPetrozavodsk Summer 2018 Day 5PA 2017 Final | |
| #8112 | Pastry shopPetrozavodsk Summer 2018 Day 5 | |
| #8113 | SudokuCOCI 2023/2024 Contest #1 | |
| #8114 | LabirintCOCI 2023/2024 Contest #1 | |
| #8115 | AN2DLCOCI 2023/2024 Contest #1 | |
| #8116 | KockeCOCI 2023/2024 Contest #1 | |
| #8117 | MostoviCOCI 2023/2024 Contest #1 | |
| #8118 | PahuljiceCOCI 2023/2024 Contest #2 | |
| #8119 | PingvinCOCI 2023/2024 Contest #2 | |
| #8120 | DizaloCOCI 2023/2024 Contest #2 | |
| #8121 | KugliceCOCI 2023/2024 Contest #2 | |
| #8122 | ZatopljenjeCOCI 2023/2024 Contest #2 | |
| #8123 | EurokodCOCI 2023/2024 Contest #3 | |
| #8124 | VrsarCOCI 2023/2024 Contest #3 | |
| #8125 | Milano C.leCOCI 2023/2024 Contest #3 | |
| #8126 | RestoraniCOCI 2023/2024 Contest #3 | |
| #8127 | Slučajna CestaCOCI 2023/2024 Contest #3 | |
| #8128 | Alternating Paths | |
| #8129 | Binary Sequence | |
| #8130 | Yet Another Balanced Coloring Problem | |
| #8131 | Filesystem | |
| #8132 | Freshman's Dream | |
| #8133 | When Anton Saw This Task He Reacted With 😩 | |
| #8134 | LCA Counting | |
| #8135 | Minimum Cost Flow² | |
| #8136 | Rebellious Edge | |
| #8137 | 'Ello, and What Are You After, Then? | |
| #8138 | Alice and Her Lost CatCCPC Guangzhou 2022 | |
| #8139 | Ayano and sequencesCCPC Guangzhou 2022 | |
| #8140 | Customs Controls 2CCPC Guangzhou 2022 | |
| #8141 | DigitsCCPC Guangzhou 2022 | |
| #8142 | ElevatorCCPC Guangzhou 2022 | |
| #8143 | EquationsCCPC Guangzhou 2022 | |
| #8144 | GameCCPC Guangzhou 2022 | |
| #8145 | GameXCCPC Guangzhou 2022 | |
| #8146 | InfectionCCPC Guangzhou 2022 | |
| #8147 | Math ExamCCPC Guangzhou 2022 | |
| #8148 | Middle Point GraphCCPC Guangzhou 2022 | |
| #8149 | Station of FateCCPC Guangzhou 2022 | |
| #8150 | XOR SumCCPC Guangzhou 2022 | |
| #8151 | 靠谱的预言家FJOI 2019 Day 1 | |
| #8152 | 集合序列的厚度FJOI 2019 Day 1 | |
| #8153 | 树形交通网络FJOI 2019 Day 1 | |
| #8154 | 超级计算机FJOI 2019 Day 2 | |
| #8155 | 循环排列FJOI 2019 Day 2 | |
| #8156 | 新家具设计方案FJOI 2019 Day 2 | |
| #8157 | 刷野 IGDKOI 2024 普及组 Day 1 | |
| #8158 | 刷野 IIGDKOI 2024 普及组 Day 1 | |
| #8159 | 刷野 IIIGDKOI 2024 普及组 Day 1 | |
| #8160 | 切割GDKOI 2024 普及组 Day 1 | |
| #8161 | 捉迷藏GDKOI 2024 普及组 Day 2 | |
| #8162 | 读书GDKOI 2024 普及组 Day 2 | |
| #8163 | 正方形扩展GDKOI 2024 普及组 Day 2 | |
| #8164 | EX 中缀表达式GDKOI 2024 普及组 Day 2 | |
| #8165 | Numerous Elimination | |
| #8166 | Almost Large | |
| #8167 | Yet Another Simple Math Problem | |
| #8168 | Spacecraft | |
| #8169 | R-Connected Components | |
| #8170 | $N^a (\log N)^b$ | |
| #8171 | Cola | |
| #8172 | 404 Chotto Found | |
| #8173 | T Tile Placement Counting | |
| #8174 | Set Construction | |
| #8175 | Dense Planting | |
| #8176 | Next TTPC 3 | |
| #8177 | Sum is Integer | |
| #8178 | Bracket Sequestion | |
| #8179 | 2D Parentheses | |
| #8180 | Bridge Elimination | |
| #8181 | Alice and Bob (and string): Double MenacePetrozavodsk Summer 2018 Day 3 | |
| #8182 | Bag of BagsPetrozavodsk Summer 2018 Day 3 | |
| #8183 | Circle UnionPetrozavodsk Summer 2018 Day 3 | |
| #8184 | Different Summands CountingPetrozavodsk Summer 2018 Day 3 | |
| #8185 | Emerging TreePetrozavodsk Summer 2018 Day 3 | |
| #8186 | Fast Travel ColoringPetrozavodsk Summer 2018 Day 3 | |
| #8187 | Gnutella ChessmasterPetrozavodsk Summer 2018 Day 3 | |
| #8188 | Halve & MergePetrozavodsk Summer 2018 Day 3 | |
| #8189 | InterpolatePetrozavodsk Summer 2018 Day 3 | |
| #8190 | Jaw-Dropping SetPetrozavodsk Summer 2018 Day 3 | |
| #8191 | Kingdom ConnectivityPetrozavodsk Summer 2018 Day 3 | |
| #8192 | Budowa lotniskaXXXI Olimpiada Informatyczna – I etapPOI 2023/2024 Stage 1 | |
| #8193 | CzatBBBXXXI Olimpiada Informatyczna – I etapPOI 2023/2024 Stage 1 | |
| #8194 | PrzyciskiXXXI Olimpiada Informatyczna – I etapPOI 2023/2024 Stage 1 | |
| #8195 | SatelityXXXI Olimpiada Informatyczna – I etapPOI 2023/2024 Stage 1 | |
| #8196 | Zapobiegliwy studentXXXI Olimpiada Informatyczna – I etapPOI 2023/2024 Stage 1 | |
| #8197 | Kolekcjoner Bajtemonów 2XXVIII Olimpiada Informatyczna – III etap, Dzień próbnyPOI 2020/2021 Stage 3 Trial Day | |
| #8198 | Droga do domuXXVIII Olimpiada Informatyczna – III etap, Dzień pierwszyPOI 2020/2021 Stage 3 Day 1 | |
| #8199 | Les BiterablesXXVIII Olimpiada Informatyczna – III etap, Dzień pierwszyPOI 2020/2021 Stage 3 Day 1 | |
| #8200 | Surowa zimaXXVIII Olimpiada Informatyczna – III etap, Dzień pierwszyPOI 2020/2021 Stage 3 Day 1 | |