One of my subscriber created this website, and wanted to share with you guys, check it out if you got time-
https://codeforces.com/blog/entry/90207
#not_an_ad
https://codeforces.com/blog/entry/90207
#not_an_ad
Codeforces
All division 1,2,3, ed, global round links and helper for virtual participations
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