Keeping track of both Codeforces round and online team contest was a doozy, so this is only the best draft of the editorial I have. Missing problems will gradually be added, and existing explanations may improve over time. Hope you enjoyed the problems, and let me know if anything can be explained better!↵
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**UPD**: okay, all of the problems are out, and most of the bugs are fixed (I hope). By the way, we had a nice [discussion](https://youtu.be/1OWGTQpfk5Y) with [user:Errichto,2020-12-20] on his stream about Div. 2 problems, which some of you may find more approachable. Be sure to check it out, as well as other stuff [user:Errichto,2020-12-20] creates!↵
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[tutorial:1459A]↵
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[tutorial:1459B]↵
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[tutorial:1459C]↵
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[tutorial:1459D]↵
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[tutorial:1459E]↵
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[tutorial:1459F]↵
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[tutorial:1458E]↵
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_(Kudos to [user:Golovanov399,2020-12-19] for his neat [grid drawing tool](https://golovanov399.github.io/grid/rect_grid_draw.htm))_↵
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[tutorial:1458F]↵
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**UPD**: okay, all of the problems are out, and most of the bugs are fixed (I hope). By the way, we had a nice [discussion](https://youtu.be/1OWGTQpfk5Y) with [user:Errichto,2020-12-20] on his stream about Div. 2 problems, which some of you may find more approachable. Be sure to check it out, as well as other stuff [user:Errichto,2020-12-20] creates!↵
↵
[tutorial:1459A]↵
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[tutorial:1459B]↵
↵
[tutorial:1459C]↵
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[tutorial:1459D]↵
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[tutorial:1459E]↵
↵
[tutorial:1459F]↵
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[tutorial:1458E]↵
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_(Kudos to [user:Golovanov399,2020-12-19] for his neat [grid drawing tool](https://golovanov399.github.io/grid/rect_grid_draw.htm))_↵
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[tutorial:1458F]↵
