I was wondering whether anyone could share his/her code on any problem in ejoi
I want code of the 1st with binary lifting and the 3rd mostly but any other is welcome!!!
Note:I was a participant 2 times in ejoi and personally this time (2020) i was around 200 score although i could have done better like 250 .i am saying cause some comments may say wrie ur own code but i did and it turned out not well.
Also i heard 1st could be done with persistent ST (some georgian girl did it)
which day?
I think it's Day 1. The 1st problem on Day 1 had a binary lifting solution.
Yes Day 1 and it can be sovled with persistent ST (hard code)
Here is the solution for the 1st problem of Day1 (Fountain) with binary lifting: link.
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I think, absence of system for upsolving past problems of EJOI 2020 is real issue. So that, I wrote to organizers' e-mail. Maybe, they won't answer to my message, cause of expired mail. Who knows contacts (real mail, cf handles) of organizers?