International Competitions 2020

#CompetitionYearsProblemsYears
1International Mathematical Olympiad1959–2025398
2Middle European Mathematical Olympiad2009–2025160
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ProblemSourceTags
International Mathematical Olympiad 2020 Problem 1International Mathematical Olympiad 2020AnglesGeometryPerpendicularityQuad
International Mathematical Olympiad 2020 Problem 2International Mathematical Olympiad 2020AlgebraInequalitiesOptimization
International Mathematical Olympiad 2020 Problem 3International Mathematical Olympiad 2020ColoringCombinatoricsConstruction
International Mathematical Olympiad 2020 Problem 4International Mathematical Olympiad 2020CombinatoricsGraphsOptimization
International Mathematical Olympiad 2020 Problem 5International Mathematical Olympiad 2020AlgebraEq
International Mathematical Olympiad 2020 Problem 6International Mathematical Olympiad 2020GeometryOptimization
Middle European Mathematical Olympiad 2020 Problem I-1Middle European Mathematical Olympiad 2020AlgebraFunctionalFunctions
Middle European Mathematical Olympiad 2020 Problem I-2Middle European Mathematical Olympiad 2020ConstructionDigitsNT
Middle European Mathematical Olympiad 2020 Problem I-3Middle European Mathematical Olympiad 2020CircumcircleGeometryIncircleOrthocenterTriangle
Middle European Mathematical Olympiad 2020 Problem I-4Middle European Mathematical Olympiad 2020AlgebraDiophantineNT