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ProblemSourceTags
International Mathematical Olympiad 1992 Problem 5International Mathematical Olympiad 1992CoordInequalities3D
International Mathematical Olympiad 1992 Problem 6International Mathematical Olympiad 1992NTOptimizationSums
International Mathematical Olympiad 1993 Problem 1International Mathematical Olympiad 1993AlgebraNTPolynomials
International Mathematical Olympiad 1993 Problem 2International Mathematical Olympiad 1993AnglesCircumcircleGeometryTangentTriangle
International Mathematical Olympiad 1993 Problem 3International Mathematical Olympiad 1993BoardCombinatoricsGamesParity
International Mathematical Olympiad 1993 Problem 4International Mathematical Olympiad 1993GeometryInequalitiesOptimizationTriangle
International Mathematical Olympiad 1993 Problem 5International Mathematical Olympiad 1993ConstructionFunctionalFunctions
International Mathematical Olympiad 1993 Problem 6International Mathematical Olympiad 1993CombinatoricsPowersRecurrencesSeq
International Mathematical Olympiad 1994 Problem 1International Mathematical Olympiad 1994CombinatoricsInequalitiesOptimization
International Mathematical Olympiad 1994 Problem 2International Mathematical Olympiad 1994CollinearGeometryIsoscelesPerpendicularity
International Mathematical Olympiad 1994 Problem 3International Mathematical Olympiad 1994ConstructionCountingNT
International Mathematical Olympiad 1994 Problem 4International Mathematical Olympiad 1994DiophantineNT
International Mathematical Olympiad 1994 Problem 5International Mathematical Olympiad 1994AlgebraFunctionalFunctions
International Mathematical Olympiad 1994 Problem 6International Mathematical Olympiad 1994ConstructionNTPrimes
International Mathematical Olympiad 1995 Problem 1International Mathematical Olympiad 1995CircleCollinearConcyclicGeometry
International Mathematical Olympiad 1995 Problem 2International Mathematical Olympiad 1995AlgebraInequalities
International Mathematical Olympiad 1995 Problem 3International Mathematical Olympiad 1995AreaConstructionGeometryTriangle
International Mathematical Olympiad 1995 Problem 4International Mathematical Olympiad 1995AlgebraOptimizationRecurrencesSeq
International Mathematical Olympiad 1995 Problem 5International Mathematical Olympiad 1995AnglesGeometryInequalitiesOptimizationPolygon
International Mathematical Olympiad 1995 Problem 6International Mathematical Olympiad 1995CombinatoricsCountingModPrimes
International Mathematical Olympiad 1996 Problem 1International Mathematical Olympiad 1996BoardCombinatoricsCoordMod
International Mathematical Olympiad 1996 Problem 2International Mathematical Olympiad 1996AnglesCollinearGeometryIncircleTriangle
International Mathematical Olympiad 1996 Problem 3International Mathematical Olympiad 1996AlgebraFunctional
International Mathematical Olympiad 1996 Problem 4International Mathematical Olympiad 1996DiophantineNTOptimization
International Mathematical Olympiad 1996 Problem 5International Mathematical Olympiad 1996CircumcircleGeometryInequalitiesPolygon
International Mathematical Olympiad 1996 Problem 6International Mathematical Olympiad 1996CombinatoricsSeq
International Mathematical Olympiad 1997 Problem 1International Mathematical Olympiad 1997AreaColoringCoordGeometryParity
International Mathematical Olympiad 1997 Problem 2International Mathematical Olympiad 1997AnglesCircumcircleGeometryLengthsTriangle
International Mathematical Olympiad 1997 Problem 3International Mathematical Olympiad 1997AbsAlgebraInequalitiesPermutations
International Mathematical Olympiad 1997 Problem 4International Mathematical Olympiad 1997CombinatoricsConstructionTables
International Mathematical Olympiad 1997 Problem 5International Mathematical Olympiad 1997EqExpNTPowers
International Mathematical Olympiad 1997 Problem 6International Mathematical Olympiad 1997CombinatoricsCountingInequalitiesPowers
International Mathematical Olympiad 1998 Problem 1International Mathematical Olympiad 1998AreaCyclic quadGeometryPerpendicularityQuad
International Mathematical Olympiad 1998 Problem 2International Mathematical Olympiad 1998CombinatoricsInequalitiesOptimization
International Mathematical Olympiad 1998 Problem 3International Mathematical Olympiad 1998DivisibilityNTPowers
International Mathematical Olympiad 1998 Problem 4International Mathematical Olympiad 1998DiophantineDivisibilityNT
International Mathematical Olympiad 1998 Problem 5International Mathematical Olympiad 1998AnglesGeometryIncircleTriangle
International Mathematical Olympiad 1998 Problem 6International Mathematical Olympiad 1998AlgebraFunctionalOptimization
International Mathematical Olympiad 1999 Problem 1International Mathematical Olympiad 1999GeometryOptimizationPerpendicularity
International Mathematical Olympiad 1999 Problem 2International Mathematical Olympiad 1999AlgebraInequalitiesOptimizationSums
International Mathematical Olympiad 1999 Problem 3International Mathematical Olympiad 1999BoardCombinatoricsOptimization
International Mathematical Olympiad 1999 Problem 4International Mathematical Olympiad 1999DivisibilityModNTPrimes
International Mathematical Olympiad 1999 Problem 5International Mathematical Olympiad 1999CircleGeometryTangent
International Mathematical Olympiad 1999 Problem 6International Mathematical Olympiad 1999AlgebraFunctionalFunctions
International Mathematical Olympiad 2000 Problem 1International Mathematical Olympiad 2000CircleCollinearGeometryTangent
International Mathematical Olympiad 2000 Problem 2International Mathematical Olympiad 2000AlgebraInequalitiesOptimization
International Mathematical Olympiad 2000 Problem 3International Mathematical Olympiad 2000AlgebraOptimizationSeq
International Mathematical Olympiad 2000 Problem 4International Mathematical Olympiad 2000CombinatoricsConstructionCounting
International Mathematical Olympiad 2000 Problem 5International Mathematical Olympiad 2000ConstructionDivisibilityNTPrimes
International Mathematical Olympiad 2000 Problem 6International Mathematical Olympiad 2000ConstructionGeometryIncircleTriangle