Revision history of "2023 IOQM/Problem 20"

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  • (cur | prev) 00:02, 27 October 2023Combi-hater (talk | contribs). . (368 bytes) (+368). . (Created page with "For any finite non empty set X of integers, let max(X) denote the largest element of X and |X| denote the number of elements in X . If N is the number of ordered pairs (A, B)...")