🧩 = Problems / 題目 / 题目 / 問題 / 문제 / โจทย์ / प्रश्नहरू / پرسشها / Soalan / Vấn đề / שאלות / Умови задач / Условия задач / Условия на задачите / Úlohy / Opgaven / Problemas / Problemas / Probleme / Feladatok / Tehtävät
💡 = Solutions / 解答 / 解答 / 解答 / 정답 / การแก้โจทย์ / उत्तरहरू / پاسخها / Jawapan / Lời giải / פתרונות / Розв’язки / Решения / Решения / Řešení / Oplossingen / Soluciones / Soluções / Soluții / Megoldások / Ratkaisut
| 2019 | 2020 | 2021 * | 2022 * | 2023 | 2024 | 2025 | 2026 | ||
|---|---|---|---|---|---|---|---|---|---|
| bn | বাংলা | 🧩 💡 | — | — | — | — | — | — | — |
| bg | Български | — | — | — | — | † 🧩 💡 | — | 🧩 💡 | 🧩 💡 |
| cs | Čeština | — | — | — | — | — | 🧩 💡 | 🧩 💡 | 🧩 💡 |
| en | English | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 |
| en-us | English (American) | — | — | — | — | — | 🧩 💡 | 🧩 💡 | 🧩 💡 |
| es | Español | — | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 |
| fa | فارسی | — | — | — | — | — | — | 🧩 💡 | — |
| fi | Suomi | — | — | — | — | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 |
| he | עברית | — | — | — | — | — | — | — | 🧩 💡 |
| hu | Magyar | — | — | — | — | — | 🧩 💡 | 🧩 💡 | 🧩 💡 |
| ja | 日本語 | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 |
| kk | Қазақша | — | — | — | — | — | — | — | 🧩 💡 |
| ko | 한국어 | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 |
| ms | Bahasa Malaysia | 🧩 💡 | 🧩 💡 | † 🧩 💡 | 🧩 💡 | † 🧩 💡 | † 🧩 💡 | — | † 🧩 💡 |
| ne | नेपाली | † 🧩 💡 | † 🧩 💡 | — | † 🧩 💡 | — | — | — | — |
| nl | Nederlands | — | — | — | — | 🧩 💡 | — | — | — |
| pt | Português | — | — | — | 🧩 💡 | 🧩 💡 | — | †🧩 💡 | †🧩 💡 |
| ro | Română | — | — | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 |
| ru | Русский | — | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 |
| sl | Slovenščina | — | — | — | — | — | — | — | 🧩 💡 |
| th | ไทย | — | — | — | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 |
| uk | Українська | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 |
| zh-cn | 中文（大陆简体） | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 |
| zh-hk | 中文（香港繁體） | 🧩 💡 | 🧩 💡 | — | — | — | — | — | — |
| zh-tr | 中文（臺灣正體） | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 | 🧩 💡 |
† Language versions with this symbol were not used in the actual competitions.
* In 2021 and 2022, the problem sets had some language features, such as names and affiliations, changed or withheld to allow local organizers flexibility in arranging contests during the pandemic and ensure fairness. The versions given above are complete and without any changed features. It is slightly different from the ones seen by APLO 2021 and 2022 participants, which you can find below:
Copyright and Licensing
All APLO problems are published under the Creative Commons Attribution–NonCommercial 4.0 International License (CC BY-NC 4.0). Copyright remains with the original problem authors. Materials may be shared and adapted for non-commercial purposes with proper attribution.
Requests for uses not covered by the CC BY-NC 4.0 license may be directed to APLO at [email protected].