Correct Solutions by,
- Toshihiro Shimizu, Kawasaki, Japan
- Tomas Jurik, Kosice, Slovakia
- Muhammetnur Bagbekov, School 21, Dashoguz, Turkmenistan
- Paolo Perfetti, University of Rome Tor Vergata, Italy
- Batuhan Bayır, Ankara University
- Resul Shamuhammedov, S.Turkmenbashy State School, Ashkabat, Turkmenistan
- Cao Minh Quang, Nguyen Binh Khiem High School, Vinh Long, Vietnam
- Kadyrberdi Annabayev, S.Turkmenbashy State School, Ashkabat, Turkmenistan
- Muhammed Reza Yegan, Tehran, Iran
- Allayer Hudaygulyyev, S.Turkmenbashy State School, Ashkabat, Turkmenistan
- Serdar Hojayew Dashoguz, Turkmenistan
- Semih Zaman, Enka Science School, Kocaeli
- Mehmet Koca, Erbakır Fen Lisesi, Denizli
- Çınar Eren Arslan, Özel Ege Lisesi, İzmir
- Vedat Deveci, DMO İstanbul
- Murat Sapayev, School 21, Dashoguz, Turkmenistan
- Baygeldi Cholukov, S.Turkmenbashy State School, Ashkabat, Turkmenistan
- Hasan Zubeyr Demir, Özel Çaglayan Fen Lisesi, Ankara
- Seydulla Narkulyyev, S.Turkmenbashy State School, Ashkabat, Turkmenistan
- Faruk Avcı, Özel Özgün Anadolu Lisesi, Bursa
- Menli Rahmedova, S.Turkmenbashy State School, Ashkabat, Turkmenistan
- Sapar Charyyev, Ulsan National Institute of Science and Technology, Korea
- Ömer Faruk Durugöl, Enka Science School, Kocaeli
- Allen Druze, Gulf Stream School, Florida, USA
- Solution: http://www.fen.bilkent.edu.tr/~cvmath/Problem/1802a.pdf