Coding problems
Algorithm problems with tests in Python, JavaScript, Java, Go and C++, checked on our server.
Adding Digit ListsMediumPattern With Dot and StarHardZip Two Sorted ChainsEasyTrade Places in TwosMediumReversing a List in BlocksHardDoes the Text Fit the PatternHardFast ExponentiationMediumThe K-th Ordering of DigitsHardList Folded From Both EndsMediumCut Out Matching NodesEasyFlip the ChainEasyPlus-Minus Calculator With BracketsHardOnly Twos MultipliedEasyHow Many Ones Are WrittenHardSymmetric Bead StringEasyEvery Bracketing ResultMediumNumbers That Survive a FlipMediumFlip-Proof Numbers in a RangeHardPreorder of a Search TreeMediumAmount in WordsHardOnly Threes MultipliedEasyOnly Fours MultipliedEasyLast One After the SweepsMediumExpand Repeat BracketsMediumEvaluating Nested ConditionsMediumDuel for the End CardsMediumSum of the Two BeforeEasySeeded Playoff BracketMediumA Calculator With Brackets and VariablesHardRearranging Hikes on a RouteHardSimplify a Letter PolynomialHardCalculator With Brackets and Four OperationsHardDoubling Rows of BitsMediumA Nested Logic FormulaHardA Bit in the Mirror-Grown StringMediumPrime Budget, Full DivisorsHardLast One in the CircleMediumEven and Prime Digit CodesMediumLeaders of a ListMediumA String That Copies ItselfEasyA Letter in a Growing WordHardEven Codes From Digit CardsEasy