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2020 IMO Problems/Problem 4: Revision history

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  • curprev 01:0201:02, 23 September 2020 Epicnumbertheory talk contribs 803 bytes +803 Created page with "Problem 4. There is an integer n > 1. There are n 2 stations on a slope of a mountain, all at different altitudes. Each of two cable car companies, A and B, operates k cable c..."
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