evima's blog

By evima, 6 years ago, In English

Edit (Jan 22, 2:45 AM UTC): Added Div1E and the editorial is now complete. I am sorry for the delay.

Edit (Jan 21, 9:45 AM UTC): Added the explanation for Div1C/2E, and the problem setters' codes. Div1E will need several more hours. Thank you again for your patience.

First, here are some statistics on this round:

Division Registrants Participants A Accepted B Accepted C Accepted D Accepted E Accepted
1 1364 572 (*) 294 199 8 113 1
(Estimated number of AC by me) 800 (wrong) 500 (wrong) 70 (FAIL) 90 (ok) 5 (wrong)
2 4016 2028 1355 945 41 5 0
(*) Where did the remaining 792 people go? :)

We are sorry for terribly underestimating the difficulty of the problems (except Div1D), especially Div1A/2C and Div1C/2E.

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