What are some best Div2 rounds on codeforces?

Правка en2, от 444iq, 2019-12-15 08:26:21

Hey, can someone tell me what are some of their favorite Div 2 rounds, from which they learn new tricks, techniques.

Any suggestions would be helpful. Thanks!

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  Rev. Язык Кто Когда Δ Комментарий
en4 Английский 444iq 2019-12-15 08:28:07 32
en3 Английский 444iq 2019-12-15 08:27:26 107
en2 Английский 444iq 2019-12-15 08:26:21 5
en1 Английский 444iq 2019-12-15 08:26:01 203 Initial revision (published)