ProblemSourceTags
International Mathematical Olympiad 1975 Problem 1International Mathematical Olympiad 1975AlgebraInequalitiesOptimization
International Mathematical Olympiad 1975 Problem 2International Mathematical Olympiad 1975NTSeq
International Mathematical Olympiad 1975 Problem 3International Mathematical Olympiad 1975AnglesConstructionGeometryTriangle
International Mathematical Olympiad 1975 Problem 4International Mathematical Olympiad 1975DigitsNTPowers
International Mathematical Olympiad 1975 Problem 5International Mathematical Olympiad 1975CircleConstructionGeometryRational
International Mathematical Olympiad 1975 Problem 6International Mathematical Olympiad 1975AlgebraFunctionalPolynomials
International Mathematical Olympiad 1976 Problem 1International Mathematical Olympiad 1976AreaGeometryOptimizationQuad
International Mathematical Olympiad 1976 Problem 2International Mathematical Olympiad 1976AlgebraEqFunctionsPolynomialsRecurrences
International Mathematical Olympiad 1976 Problem 3International Mathematical Olympiad 1976CubeOptimization3D
International Mathematical Olympiad 1976 Problem 4International Mathematical Olympiad 1976AlgebraInequalitiesOptimization
International Mathematical Olympiad 1976 Problem 5International Mathematical Olympiad 1976AlgebraSystems
International Mathematical Olympiad 1976 Problem 6International Mathematical Olympiad 1976AlgebraPowersRecurrencesSeq
International Mathematical Olympiad 1977 Problem 1International Mathematical Olympiad 1977CoordEquilateralGeometrySquare
International Mathematical Olympiad 1977 Problem 2International Mathematical Olympiad 1977AlgebraOptimizationSeq
International Mathematical Olympiad 1977 Problem 3International Mathematical Olympiad 1977ConstructionNTPrimes
International Mathematical Olympiad 1977 Problem 4International Mathematical Olympiad 1977AlgebraInequalitiesTrigonometry
International Mathematical Olympiad 1977 Problem 5International Mathematical Olympiad 1977AlgebraDiophantineNTRemainders
International Mathematical Olympiad 1977 Problem 6International Mathematical Olympiad 1977AlgebraFunctionalFunctions
International Mathematical Olympiad 1978 Problem 1International Mathematical Olympiad 1978ModNTPowers
International Mathematical Olympiad 1978 Problem 2International Mathematical Olympiad 1978CoordGeometryPerpendicularity3D
International Mathematical Olympiad 1978 Problem 3International Mathematical Olympiad 1978CombinatoricsFunctionsSeq
International Mathematical Olympiad 1978 Problem 4International Mathematical Olympiad 1978CircleCircumcircleGeometryIncircleTriangle
International Mathematical Olympiad 1978 Problem 5International Mathematical Olympiad 1978AlgebraInequalitiesSeqSums
International Mathematical Olympiad 1978 Problem 6International Mathematical Olympiad 1978CombinatoricsCounting
International Mathematical Olympiad 1979 Problem 1International Mathematical Olympiad 1979DivisibilityNTSums
International Mathematical Olympiad 1979 Problem 2International Mathematical Olympiad 1979ColoringCombinatorics3D
International Mathematical Olympiad 1979 Problem 3International Mathematical Olympiad 1979CircleGeometry
International Mathematical Olympiad 1979 Problem 4International Mathematical Olympiad 1979GeometryOptimization3D
International Mathematical Olympiad 1979 Problem 5International Mathematical Olympiad 1979AlgebraSystems
International Mathematical Olympiad 1979 Problem 6International Mathematical Olympiad 1979CombinatoricsCountingPolygonRecurrences
International Mathematical Olympiad 1981 Problem 1International Mathematical Olympiad 1981GeometryOptimizationPerpendicularityTriangle
International Mathematical Olympiad 1981 Problem 2International Mathematical Olympiad 1981CombinationsCombinatoricsCounting
International Mathematical Olympiad 1981 Problem 3International Mathematical Olympiad 1981DiophantineNTOptimization
International Mathematical Olympiad 1981 Problem 4International Mathematical Olympiad 1981DivisibilityLCMNT
International Mathematical Olympiad 1981 Problem 5International Mathematical Olympiad 1981CircleCircumcircleGeometryIncircleTriangle
International Mathematical Olympiad 1981 Problem 6International Mathematical Olympiad 1981AlgebraFunctionalRecurrences
International Mathematical Olympiad 1982 Problem 1International Mathematical Olympiad 1982FunctionalNT
International Mathematical Olympiad 1982 Problem 2International Mathematical Olympiad 1982CollinearGeometryIncircleTriangle
International Mathematical Olympiad 1982 Problem 3International Mathematical Olympiad 1982InequalitiesOptimizationSeq
International Mathematical Olympiad 1982 Problem 4International Mathematical Olympiad 1982DiophantineNT
International Mathematical Olympiad 1982 Problem 5International Mathematical Olympiad 1982CollinearCoordGeometryPolygon
International Mathematical Olympiad 1982 Problem 6International Mathematical Olympiad 1982GeometryOptimizationSquare
International Mathematical Olympiad 1983 Problem 1International Mathematical Olympiad 1983AlgebraFunctional
International Mathematical Olympiad 1983 Problem 2International Mathematical Olympiad 1983AnglesCircleGeometryTangent
International Mathematical Olympiad 1983 Problem 3International Mathematical Olympiad 1983NTOptimizationCoprime
International Mathematical Olympiad 1983 Problem 4International Mathematical Olympiad 1983ColoringEquilateralGeometryRight triangle
International Mathematical Olympiad 1983 Problem 5International Mathematical Olympiad 1983CombinatoricsConstructionCounting
International Mathematical Olympiad 1983 Problem 6International Mathematical Olympiad 1983AlgebraInequalitiesTriangle
International Mathematical Olympiad 1984 Problem 1International Mathematical Olympiad 1984AlgebraInequalitiesOptimization
International Mathematical Olympiad 1984 Problem 2International Mathematical Olympiad 1984DivisibilityModNT