Correct Solutions by,
- Toshihiro Shimizu Kawasaki, Japan
- Hasan Zübeyr Demir Ankara
- Hamza Akdeniz Bilkent University
- Albert Stadler Herrliberg, Switzerland
- Mehmet Samet Ödük METU
- Mehmet Çağatay Ünlü İstanbul Atatürk Fen Lisesi
- Orazguly Gylyjov Magtymguly Turkmen State University
- Ahmet Yüksel Aydın
- Alper Balcı Ohio State University
- Magnus Jakobsson Lund, Sweden
- Emre Bektaş Boğaziçi University
- Mahri Asgarova Ashgabat Turkmenistan
- Kerem Gelir İstanbul Atatürk Fen Lisesi
- Yunus Orazow
- Ramazan Karaşahin Ankara
- Mümtaz Ulaş Keskin Erciyes University
- Yiğit Can Karakaş
- Roger Bengtsson Lund, Sweden
- Arda Karahan Trabzon Fen Lisesi
- Choi Min Kyu South Korea
- Mustafa Derelioğlu METU
- Nawal Kishor Mishra Hyderabad, India
- Maliksha Meylismyradov 86th School, Askgabat, Turkmenistan
- Vedat Deveci İstanbul
- Murat Dilber Eskişehir Teknik University
Solution: 2501a.pdf (bilkent.edu.tr)