AtCoder-abc227_e

Revision en1, by nguyenhongnam207, 2023-11-20 09:49:43

I am stuck in this problem and I have read a solution but I don't understand what he is doing : the solution. Is there anyone can explain that to me?

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en1 English nguyenhongnam207 2023-11-20 09:49:43 278 Initial revision (published)