Marko Tsengov

Marko Tsengov is an Estonian competitive programmer who represented Estonia at the International Olympiad in Informatics (IOI) three times, winning a bronze medal at IOI 2021 and an honourable mention at IOI 2022. He competed for Tallinna Reaalkool as a secondary-school student and later studied at the University of Tartu, where he was part of the team 'Bubblegum Bitset' that placed 75th at the ICPC 2025 World Finals. Active on Codeforces as marko312 (peak rating 'master', 2156).

Notes2

• Was part of University of Tartu's 'Bubblegum Bitset' team that finished 75th at the ICPC 2025 World Finals (6/12 solved), placing him in the elite of Estonian algorithmic programming at university level.Sep 4, 2025
• Won a bronze medal at IOI 2021 (virtual, hosted by Singapore) as an 11th-grade student at Tallinna Reaalkool, scoring 208/600 and ranking 163rd-164th; the result came alongside teammate Andres Alumets' bronze, giving Estonia two medals.Jun 25, 2021
• Competed at IOI 2022 (Indonesia) and earned an honourable mention with 129.75/600, ranking 194th - a step down from the 2021 bronze, showing the field's depth and his move from school-level peak toward university study.Aug 15, 2022
• Codeforces handle marko312 lists location Laagri, Estonia, peak rating 2156 (master) with current rating 2009; 420 problems solved all-time.Sep 11, 2026
• Competed at IOI 2020 as well (193rd, 211.93/600), so his IOI career spans 2020-2022 - the task's claim that he represented Estonia in 2021 and 2022 is correct and he also attended 2020.Sep 19, 2020