Coding problems
Algorithm problems with tests in Python, JavaScript, Java, Go and C++, checked on our server.
Primes Below a BoundMediumFold the Digits Down to OneEasyLaser in a Mirror RoomMediumFirst Prime That Reads Both WaysMediumEven Piles of CardsEasyBiggest Shared-Factor GroupHardN-th Number Divisible by One of ThreeMediumMake One From MultiplesHardReduced Fractions Up to a DenominatorMediumK-th Smallest DivisorMediumTowns Joined by Big DivisorsHardNearest Coprime AncestorHardPrime Budget, Full DivisorsHardDistinct GCDs of SelectionsHardA Trio of DivisorsEasyGCD of the ExtremesEasySorting With Shared-Divisor SwapsHardPhoto Frames of the Same ShapeMediumPairs With a Divisible ProductHardMerging Neighbors With a Common FactorHardSegments on a ChartMediumDivisor ChainsHardSmallest Divides Them AllHardLeast Even MultipleEasyCount Shared DivisorsEasyChunks With a Common DivisorMediumSegments With a Given GCDMediumSplit by Shared EndsMediumSegments With a Given LCMMediumPrime Factor Sum DescentMediumNumbers for Two GroupsMediumPrimes Behind the ProductMediumTightest Prime PairMediumDouble or SubtractHardFirst Coprime CutHardShave Primes Into OrderMediumEqual Window Sums on a RingMediumLargest Prime on the DiagonalsEasySpreading Ones by GCDMediumAll Linked by Common FactorsHardCoprime Digit PairsEasyA Number as Two PrimesMediumGCD Between NeighboursMediumPositions With Square ProductsHardPaths With Exactly One PrimeHardGCD Times SumHardEven Vowel and Consonant PiecesMediumBalanced Stretches of a StringHardLargest Unpayable AmountMediumShrink a List With RemaindersMedium
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