This round is initiated and supported by Ozon.
Ozon — one of the leading players in e-commerce (provides its customers with over 2.5 million product names in 24 categories), a tech company that actively developing its IT department. They already have the largest Golang team in Russia, a proprietary WMS fulfillment management system completely written by the Ozon team, 250 million lines of logs per day, collected on the site and in the Ozon mobile application. Ozon experts perform at the leading profile conferences GoperCon, Heisenbug, GoWayFest, GolangConf, and also at the company site meetups are held for the IT community.
The company shows great interest in the support of the developer community — for schoolchildren there is Ozon Academy, for the older audience there is an internship program Ozon Tech Camp and training program Ozon Masters.
Participants will be asked to solve 8 problems in 2 hours 15 minutes. Scoring will be announced a bit later.
We would like to thank:
- Maripium, gamegame, hugopm, dorijanlendvaj, ngfam, ngkan, and 265918 for helping with the preparation of the tasks.
- ecnerwala, 300iq, puppies_and_rainbows, benson1029, user1324641, victoralm, Mbfibat, SeehtEntity, tmwilliamlin168, McDic, pajenegod, leduythuc, MrDecomposition, all_too_well, manish.17, aryanc403, hetp111, God_Ra, ScarletS, TselmegKh, cfalas, omgursocute, Redux, and BencilSharpeniro for testing and giving feedback as well as suggestions to the rounds.
- MikeMirzayanov for the wonderful Codeforces and Polygon systems that made this contest possible.
Thanks to Ozon for the gifts to the participants:
- top 10 participants will receive stylish branded backpacks and branded T-shirts;
- 11-20th participants will receive compact portable chargers for 10000 mAh and branded T-shirts;
- 21-60th participants will get branded t-shirts;
- another 30 T-shirts will be played among the rest of the participants, who solved at least two problems, randomly.
We hope everyone will find an interesting problem for themselves. Wish everyone a successful round and high ratings! Good luck!
500 — 1000 — 1250 — 1750 — 2000 — 2500 — 3250 — 4000
UPD3: Congratulation to the winners!
Information about prizes will appear soon.