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elliotalders0n It's tricky in every language 🙂 It's one of these problems where the solution is trivial, but it takes a while to understand the statement. I have rewritten the statement in English to sound a bit more natural, but the important part is: the gardener should have used the following amounts of water for each tree $1,\frac{1}{2},\frac{1}{3},...\frac{1}{N}$. It was raining the first few days, so he skipped them. We need to know how many days the gardener skipped if the total amount of water used per tree is no more than half a bucket.

dorin умова коректна, якщо у вас виникають труднощі ви можете прочитати розбір до задачі