Sudden increase in correct submissions

Правка en1, от iit_ya_ism, 2020-03-24 09:07:01

I noted one thing out of curiosity that in recent educational round at 90% system testing problem E was solved by arounf 500 users but at 100% it wnet upto 2000 , how is it possible that during last 12-17 minutes so many people got idea how to solve that question link of question

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en1 Английский iit_ya_ism 2020-03-24 09:07:01 367 Initial revision (published)