IOI 2025 Tasks
The IOI 2025 tasks are published under the Creative Commons Attribution license (CC-BY) license.
Practice Contest
aplusb (A + B Queries)
bitstrings (Duplicated Binary Strings)
boringgame (Boring Game)
magic (Magic Trick)
Contest Day 1
souvenirs (Souvenirs)
- Author: Félix Moreno Peñarrubia (Spain)
- Statement:
- Official English
- Translations (zip): md pdf
- Test data and supplementary material
triples (Triple Peaks)
- Author: Kamil Dębowski (Poland)
- Statement:
- Official English
- Translations (zip): md pdf
- Test data and supplementary material
worldmap (World Map)
- Author: Masataka Yoneda & Hirotaka Yoneda (Japan)
- Statement:
- Official English
- Translations (zip): md pdf
- Test data and supplementary material
Contest Day 2
festival (Festival)
- Author: Masataka Yoneda & Hirotaka Yoneda (Japan)
- Statement:
- Official English
- Translations (zip): md pdf
- Test data and supplementary material
migrations (Migrations)
- Author: Masataka Yoneda & Hirotaka Yoneda (Japan)
- Statement:
- Official English
- Translations (zip): md pdf
- Test data and supplementary material
obstacles (Obstacles for a Llama)
- Author: Sunghyeon Jo (South Korea)
- Statement:
- Official English
- Translations (zip): md pdf
- Test data and supplementary material
Task Development Team
Host Scientific Committee (HSC)
- Zsolt NĂ©meth (chair)
- Carlos Miguel Soto
- Arthur Nascimento
- Danner Zein Tonconi Mendoza
- Ronaldo Franco Jaldin
- Lautaro Lasorsa
- Nicolás Armando Alba Murillo
- Alexis Jaime Vargas Quelca
- Fabricio Javier Cabrera Gordillo
- Shamir Leonardo Teran Mustafa
Testers
- PĂ©ter Gyimesi
- Pikatan Arya Bramajati
- Alperen Tupurtu
- Ali Shahali
- Abolfazl Soltani
- Cristhian Bonilha
- Wojciech Nadara
- Nima Naderi
- Soheil Mohammadkhani
- Soroush Sahraei
- AmirMohamad Shahrezaei