The IMO Shortlist
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Keywords | Content |
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start | The problems here may look intimidating, but you don't need to come up with full mathematical proofs for the purposes of this puzzle. Computer algebra systems, brute-force, geometry software like GeoGebra, extrapolation, and searching on the Internet will get you very far with getting answers to the problems. |
geometry | In the diagrams, the given country is not the only collinear triple! |
countries | The countries are not listed in alphabetical order. In fact, these are the most recent hosts of the International Math Olympiad, in chronological order. |
Each of the math problems gives you a way to convert the given country to a new country. Try looking at the IMO timeline for an idea of what data you could use. |
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algebra | Try using the number of the IMO rather than the year as an input. |
combinatorics | Try using the year of the IMO (rather than the number) for this section. |
number theory | The previous sections used the first three columns of the IMO timeline page in order. The number theory section uses the fourth one. How can you convert a city to an ordered pair? |
extraction | Using the mechanics for each section, you should be able to arrange all 21 problems into a cycle. The cycle should start from G1. Notice the numbers are simply increasing within each subject, so only the subjects are relevant. |
extraction | It may seem odd that number theory abbreviated as NT instead of the more usual N. To understand why, think about "stranded" in the flavortext. |