Directories ¶ Show internal Expand all Path Synopsis 1002.FindCommonCharacters 1007.MinimumDominoRotationsForEqualRow 1014.BestSightseeingPair 102.BinaryTreeLevelOrderTraversal 1026.MaximumDifferenceBetweenNodeandAncestor 1028.RecoverATreeFromPreorderTraversal 1038.BinarySearchTreetoGreaterSumTree 1047.RemoveAllAdjacentDuplicatesInString 105.ConstructBinaryTreeFromPreorderAndInorderTraversal 1061.LexicographicallySmallestEquivalentString 1079.LetterTilePossibilities 1092.ShortestCommonSupersequence 110.BalancedBinaryTree 1123.LowestCommonAncestorOfDeepestLeaves 1128.NumberOfEquivalentDominoPairs 116.PopulatingNextRightPointersinEachNode 118.PascalsTriangle 1207.UniqueNumberofOccurrences 121.BestTimetoBuyandSellStock 1233.RemoveSub-FoldersFromTheFilesystem 124.BinaryTreeMaximumPathSum 125.ValidPalindrome 1261.FindElementsInAContaminatedBinaryTree 1267.CountServersThatCommunicate 1290.ConvertBinaryNumberInALinkedListToInteger 1295.FindNumbersWithEvenNumberOfDigits 1298.MaximumCandiesYouCanGetFromBoxes 135.Candy 1352.ProductOfTheLastKNumbers 1353.MaximumNumberOfEventsThatCanBeAttended 1358.NumberOfSubstringsContainingAllThreeCharacters 1394.FindLuckyIntegerInAnArray 1399.CountLargestGroup 1400.ConstructKPalindromeStrings 1408.StringMatchingInAnArray 141.LinkedListCycle 1415.TheK-thLexicographicalStringOfAllHappyStringsOfLengthN 1422.MaximumScoreAfterSplittingAString 1423.MaximumPointsYouCanObtainfromCards 1432.MaxDifferenceYouCanGetFromChangingAnInteger 146.LRUCache 1462.CourseScheduleIV 1498.NumberOfSubsequencesThatSatisfyTheGivenSumCondition 15.3Sum 150.EvaluateReversePolishNotation 1524.NumberOfSub-arraysWithOddSum 1534.CountGoodTriplets 1544.MakeTheStringGreat 155.MinStack 1550.ThreeConsecutiveOdds 1578.MinimumTimetoMakeRopeColorful 1695.MaximumErasureValue 17.LetterCombinationsOfAPhoneNumber 1704.DetermineifStringHalvesAreAlike 1717.MaximumScoreFromRemovingSubstrings 1718.ConstructTheLexicographicallyLargestValidSequence 1721.SwappingNodesinaLinkedList 1726.TupleWithSameProduct 1749.MaximumAbsoluteSumOfAnySubarray 1751.MaximumNumberOfEventsThatCanBeAttendedII 1752.CheckIfArrayIsSortedAndRotated 1762.BuildingsWithanOceanView 1765.MapOfHighestPeak 1769.MinimumNumberOfOperationsToMoveAllBallsToEachBox 1780.CheckIfNumberIsASumOfPowersOfThree 1790.CheckIfOneStringSwapCanMakeStringsEqual 1800.MaximumAscendingSubarraySum 1857.LargestColorValueInADirectedGraph 1865.FindingPairsWithACertainSum 19.RemoveNthNodeFromEndofList 1900.TheEarliestAndLatestRoundsWherePlayersCompete 1910.RemoveAllOccurrencesOfASubstring 1920.BuildArrayFromPermutation 1922.CountGoodNumbers 1930.UniqueLength-3PalindromicSubsequences 1931.PaintingAGridWithThreeDifferentColors 1948.DeleteDuplicateFoldersInSystem 1957.DeleteCharactersToMakeFancyString 1976.NumberOfWaysToArriveAtDestination 1980.FindUniqueBinaryString 2.AddTwoNumbers 20.ValidParentheses 200.NumberOfIslands 2014.LongestSubsequenceRepeatedkTimes 2016.MaximumDifferenceBetweenIncreasingElements 2017.GridGame 2033.MinimumOperationsToMakeAUni-ValueGrid 2040.KthSmallestProductOfTwoSortedArrays 2044.CountNumberOfMaximumBitwise-ORSubsets 2071.MaximumNumberOfTasksYouCanAssign 208.ImplementTriePrefixTree 2081.SumOfk-MirrorNumbers 2094.Finding3-DigitEvenNumbers 2095.DeletetheMiddleNodeofaLinkedList 2099.FindSubsequenceOfLengthKWithTheLargestSum 2115.FindAllPossibleRecipesFromGivenSupplies 2116.CheckIfAParenthesesStringCanBeValid 2127.MaximumEmployeesToBeInvitedToAMeeting 2131.LongestPalindromeByConcatenatingTwoLetterWords 2138.DivideAStringIntoGroupsOfSizek 2140.SolvingQuestionsWithBrainpower 2145.CountTheHiddenSequences 2161.PartitionArrayAccordingToGivenPivot 2163.MinimumDifferenceInSumsAfterRemovalOfElements 2176.CountEqualAndDivisiblePairsInAnArray 2179.CountGoodTripletsInAnArray 2185.CountingWordsWithAGivenPrefix 22.GenerateParentheses 2200.FindAllK-DistantIndicesInAnArray 2206.DivideArrayIntoEqualPairs 221.MaximalSquare 2210.CountHillsAndValleysInAnArray 222.CountCompleteTreeNodes 2225.FindPlayersWithZeroorOneLosses 2226.MaximumCandiesAllocatedToKChildren 226.InvertBinaryTree 2270.NumberOfWaysToSplitArray 2294.PartitionArraySuchThatMaximumDifferenceIsK 230.KthSmallestElementInABST 2302.CountSubarraysWithScoreLessThanK 2311.LongestBinarySubsequenceLessThanOrEqualToK 2322.MinimumScoreAfterRemovalsOnATree 2338.CountTheNumberOfIdealArrays 234.PalindromeLinkedList 2342.MaxSumOfAPairWithEqualSumOfDigits 2349.DesignANumberContainerSystem 235.LowestCommonAncestorofaBinarySearchTree 2359.FindClosestNodeToGivenTwoNodes 2364.CountNumberOfBadPairs 2375.ConstructSmallestNumberFromDIString 2379.MinimumRecolorsToGetKConsecutiveBlackBlocks 238.ProductOfArrayExceptSelf 2381.ShiftingLettersII 2401.LongestNiceSubarray 2402.MeetingRoomsIII 2410.MaximumMatchingOfPlayersWithTrainers 2411.SmallestSubarraysWithMaximumBitwiseOR 2419.LongestSubarrayWithMaximumBitwiseAND 242.ValidAnagram 2425.BitwiseXOROfAllPairings 2429.MinimizeXOR 2434.UsingARobotToPrintTheLexicographicallySmallestString 2444.CountSubarraysWithFixedBounds 2460.ApplyOperationsToAnArray 2466.CountWaysToBuildGoodStrings 2467.MostProfitablePathInATree 2493.DivideNodesIntoTheMaximumNumberOfGroups 2503.MaximumNumberOfPointsFromGridQueries 2529.MaximumCountOfPositiveIntegerAndNegativeInteger 2537.CountTheNumberOfGoodSubarrays 2551.PutMarblesInBags 2559.CountVowelStringsInRanges 2560.HouseRobberIV 2561.RearrangingFruits 2563.CountTheNumberOfFairPairs 2566.MaximumDifferenceByRemappingADigit 2579.CountTotalNumberOfColoredCells 2594.MinimumTimeToRepairCars 26.RemoveDuplicatesfromSortedArray 2616.MinimizeTheMaximumDifferenceOfPairs 2657.FindThePrefixCommonArrayOfTwoArrays 2658.MaximumNumberOfFishInAGrid 2661.FirstCompletelyPaintedRowOrColumn 2685.CountTheNumberOfCompleteComponents 2698.FindThePunishmentNumberOfAnInteger 278.FirstBadVersion 2799.CountCompleteSubarraysInAnArray 2818.ApplyOperationsToMaximizeScore 2843.CountSymmetricIntegers 2845.CountOfInterestingSubarrays 2873.MaximumValueOfAnOrderedTripletI 2874.MaximumValueOfAnOrderedTripletII 2894.DivisibleAndNon-divisibleSumsDifference 2900.LongestUnequalAdjacentGroupsSubsequenceI 2901.LongestUnequalAdjacentGroupsSubsequenceII 2918.MinimumEqualSumOfTwoArraysAfterReplacingZeros 2929.DistributeCandiesAmongChildrenII 2942.FindWordsContainingCharacter 2948.MakeLexicographicallySmallestArrayBySwappingElements 2962.CountSubarraysWhereMaxElementAppearsAtLeastKTimes 2966.DivideArrayIntoArraysWithMaxDifference 2999.CountTheNumberOfPowerfulIntegers 3.LongestSubstringWithoutRepeatingCharacters 3024.TypeOfTriangle 3042.CountPrefixAndSuffixPairsI 3066.MinimumOperationsToExceedThresholdValueII 3068.FindTheMaximumSumOfNodeValues 3085.MinimumDeletionsToMakeStringK-Special 3105.LongestStrictlyIncreasingOrStrictlyDecreasingSubarray 3108.MinimumCostWalkInWeightedGraph 3136.ValidWord 3151.SpecialArrayI 3160.FindTheNumberOfDistinctColorsAmongTheBalls 3170.LexicographicallyMinimumStringAfterRemovingStars 3174.ClearDigits 3191.MinimumOperationsToMakeBinaryArrayElementsEqualToOneI 3201.FindTheMaximumLengthOfValidSubsequenceI 3202.FindTheMaximumLengthOfValidSubsequenceII 3208.AlternatingGroupsII 322.CoinChange 3223.MinimumLengthOfStringAfterOperations 3272.FindTheCountOfGoodIntegers 33.SearchInRotatedSortedArray 3304.FindTheK-thCharacterInStringGameI 3306.CountOfSubstringsContainingEveryVowelAndKConsonantsII 3307.FindTheK-thCharacterInStringGameII 3330.FindTheOriginalTypedStringI 3333.FindTheOriginalTypedStringII 3335.TotalCharactersInStringAfterTransformationsI 3337.TotalCharactersInStringAfterTransformationsII 3341.FindMinimumTimeToReachLastRoomI 3342.FindMinimumTimeToReachLastRoomII 3343.CountNumberOfBalancedPermutations 3355.ZeroArrayTransformationI 3356.ZeroArrayTransformationII 3362.ZeroArrayTransformationIII 3372.MaximizeTheNumberOfTargetNodesAfterConnectingTreesI 3373.MaximizeTheNumberOfTargetNodesAfterConnectingTreesII 3375.MinimumOperationsToMakeArrayValuesEqualToK 3392.CountSubarraysOfLengthThreeWithACondition 3394.CheckIfGridCanBeCutIntoSections 3396.MinimumNumberOfOperationsToMakeElementsInArrayDistinct 3403.FindTheLexicographicallyLargestStringFromTheBoxI 3405.CountTheNumberOfArraysWithKMatchingAdjacentElements 3423.MaximumDifferenceBetweenAdjacentElementsInACircularArray 3439.RescheduleMeetingsForMaximumFreeTimeI 3440.RescheduleMeetingsForMaximumFreeTimeII 3442.MaximumDifferenceBetweenEvenAndOddFrequencyI 3443.MaximumManhattanDistanceAfterKChanges 3445.MaximumDifferenceBetweenEvenAndOddFrequencyII 3480.MaximizeSubarraysAfterRemovingOneConflictingPair 3487.MaximumUniqueSubarraySumAfterDeletion 368.LargestDivisibleSubset 376.WiggleSubsequence 38.CountAndSay 386.LexicographicalNumbers 387.FirstUniqueCharacterinaString 407.TrappingRainWaterII 409.LongestPalindrome 416.PartitionEqualSubsetSum 420.StrongPasswordChecker 429.N-aryTreeLevelOrderTraversal 438.FindAllAnagramsInAString 440.K-thSmallestInLexicographicalOrder 46.Permutations 48.RotateImage 494.TargetSum 498.DiagonalTraverse 53.MaximumSubarray 543.DiameterOfBinaryTree 556.NextGreaterElementIII 56.MergeIntervals 560.SubarraySumEqualsK 57.InsertInterval 589.N-aryTreePreorderTraversal 594.LongestHarmoniousSubsequence 606.ConstructStringfromBinaryTree 61.RotateList 623.AddOneRowtoTree 637.AverageOfLevelsInBinaryTree 653.TwoSumIV-InputisaBST 658.FindKClosestElements 678.ValidParenthesisString 684.RedundantConnection 692.TopKFrequentWords 70.ClimbingStairs 704.BinarySearch 73.SetMatrixZeroes 733.FloodFill 75.SortColors 763.PartitionLabels 781.RabbitsInForest 79.WordSearch 790.DominoAndTrominoTiling 802.FindEventualSafeStates 827.MakingALargeIsland 83.RemoveDuplicatesfromSortedList 838.PushDominoes 873.LengthOfLongestFibonacciSubsequence 889.ConstructBinaryTreeFromPreorderAndPostorderTraversal 898.BitwiseORsOfSubarrays 909.SnakesAndLadders 916.WordSubsets 92.ReverseLinkedListII 946.ValidateStackSequences 973.KClosestPointsToOrigin 98.ValidateBinarySearchTree 981.TimeBasedKey-ValueStore 983.MinimumCostForTickets 994.RottingOranges MinimumOperationsToMakeColumnsStrictlyIncreasing Click to show internal directories. 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