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Discussion of Problem 1382. Game with Cards

Statement is incomplete?
Posted by mouse_wireless2 23 May 2019 17:45
Problem statement says "His friends write numbers from 1 to N on cards", but it doesn't mention that these numbers should be distinct. Yet, it seems like the problem only accepts solutions in which the numbers are distinct (i.e. the numbers on the N cards are a permutation of [1..N]).