Revision history of "1989 IMO Problems"

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  • (cur | prev) 11:47, 30 January 2021Hamstpan38825 (talk | contribs). . (2,959 bytes) (+2,959). . (Created page with "Problems of the 1989 IMO. ==Day I== ===Problem 1=== Prove that in the set <math> \{1,2, \ldots, 1989\}</math> can be expressed as the disjoint union of subsets <math> A_i...")
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