Can anyone who solved this problem explain how to solve subtask 2 and full solution please ? https://oj.uz/problem/view/BOI17_catinatree
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I was trying to solve this problem and this is my AC code. I then found This short solution written by some user. Can anyone explain what it does and why is it correct?
I am stuck on this problem 1181D - Ирригация I can't understand its editorial.Can somebody explain the solution in more details ? thanks !
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