Can someone explain 1917B solution?
Difference between en1 and en2, changed 79 character(s)
This was my solution with O(n^2) complexity which results in MLE:↵
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https://codeforces.me/contest/1917/submission/238752759 ↵
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Here is the solution with a lower complexity: ↵
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https://codeforces.me/contest/1917/submission/239038045↵
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I did not understand what was done in the solution. Can anyone explain?↵
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I read the editorial but can't understand that aswell.

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en2 English EErbium 2023-12-30 17:19:39 79 (published)
en1 English EErbium 2023-12-30 17:16:38 325 Initial revision (saved to drafts)