Files

algorithms
- cpp
  - 3Sum
  - 3SumClosest
  - 4Sum
  - FindValidMatrixGivenRowAndColumnSums
  - LRUCache
  - NumberOfWaysToSplitString
  - UTF8Validation
  - accountsMerge
  - addAndSearchWord
  - addBinary
  - addDigits
  - addStrings
  - addToArrayFormOfInteger
  - addTwoNumbers
  - additiveNumber
  - anagrams
  - arithmeticSlices
  - backspaceStringCompare
  - balancedBinaryTree
  - basicCalculator
  - bestTimeToBuyAndSellStock
  - binarySearchTreeIterator
  - binaryTreeInorderTraversal
  - binaryTreeLevelOrderTraversal
  - binaryTreeMaximumPathSum
  - binaryTreePaths
  - binaryTreePostorderTraversal
  - binaryTreePreorderTraversal
  - binaryTreeRightSideView
  - binaryTreeUpsideDown
  - binaryTreeZigzagLevelOrderTraversal
  - binaryWatch
  - bitwiseANDOfNumbersRange
  - brokenCalculator
  - buddyStrings
  - buildingBoxes
  - bulbSwitcher
  - bullsAndCows
  - burstBalloons
  - calculateMoneyInLeetcodeBank
  - candy
  - checkIfArrayIsSortedAndRotated
  - checkIfBinaryStringHasAtMostOneSegmentOfOnes
  - checkIfNumberIsASumOfPowersOfThree
  - checkIfOneStringSwapCanMakeStringsEqual
  - checkIfTheSentenceIsPangram
  - checkIfWordEqualsSummationOfTwoWords
  - climbStairs
  - cloneGraph
  - closestDessertCost
  - closestRoom
  - closestSubsequenceSum
  - coinChange
  - combinationSum
  - combinationSumIV
  - combinations
  - compareStringsByFrequencyOfTheSmallestCharacter
  - compareVersionNumbers
  - constructBinaryTreeFromInorderAndPostorderTraversal
  - constructBinaryTreeFromPreorderAndInorderTraversal
  - constructTheLexicographicallyLargestValidSequence
  - containerWithMostWater
  - containsDuplicate
  - convertANumberToHexadecimal
  - convertSortedArrayToBinarySearchTree
  - convertSortedListToBinarySearchTree
  - copyListWithRandomPointer
  - countAndSay
  - countCompleteTreeNodes
  - countGoodMeals
  - countItemsMatchingARule
  - countNicePairsInAnArray
  - countNumberOfHomogenousSubstrings
  - countNumbersWithUniqueDigits
  - countOddNumbersInAnIntervalRange
  - countOfRangeSum
  - countOfSmallerNumbersAfterSelf
  - countPairsOfNodes
  - countPairsWithXorInARange
  - countPrimes
  - countingBits
  - courseSchedule
  - cousinsInBinaryTree
  - createMaximumNumber
  - decodeString
  - decodeWays
  - decodeXORedPermutation
  - deleteNodeInALinkedList
  - designAuthenticationManager
  - detectCapital
  - determineColorOfAChessboardSquare
  - diameterOfBinaryTree
  - differentWaysToAddParentheses
  - distinctSubsequences
  - distributeCoinsInBinaryTree
  - divideTwoInt
  - dungeonGame
  - editDistance
  - eggDropWith2EggsAndNFloors
  - eliminationGame
  - equalSumArraysWithMinimumNumberOfOperations
  - evaluateDivision
  - evaluateReversePolishNotation
  - evaluateTheBracketPairsOfAString
  - excelSheetColumnNumber
  - excelSheetColumnTitle
  - expressionAddOperators
  - factorialTrailingZeroes
  - fibonacciNumber
  - filterRestaurantsByVeganFriendlyPriceAndDistance
  - findAllAnagramsInAString
  - findCenterOfStarGraph
  - findKthLargestXorCoordinateValue
  - findMedianFromDataStream
  - findMinimumInRotatedSortedArray
  - findNearestPointThatHasTheSameXOrYCoordinate
  - findPeakElement
  - findTheDifference
  - findTheDuplicateNumber
  - findTheHighestAltitude
  - findTheWinnerOfAnArrayGame
  - findTheWinnerOfTheCircularGame
  - findXorSumOfAllPairsBitwiseAnd
  - findingMkAverage
  - findingTheUsersActiveMinutes
  - firstBadVersion
  - firstMissingPositive
  - firstUniqueCharacterInAString
  - fizzBuzz
  - flattenBinaryTreeToLinkedList
  - flattenNestedListIterator
  - formArrayByConcatenatingSubarraysOfAnotherArray
  - fractionToRecurringDecimal
  - frequencyOfTheMostFrequentElement
  - friendCircles
  - frogJump
  - gameOfLife
  - gasStation
  - generateParentheses
  - grayCode
  - greatestCommonDivisorOfStrings
  - h-Index
  - happyNumber
  - houseRobber
  - implementQueueUsingStacks
  - implementStackUsingQueues
  - implementTriePrefixTree
  - increasingTripletSubsequence
  - incrementalMemoryLeak
  - insertDeleteGetRandom
  - insertInterval
  - insertionSortList
  - integerBreak
  - integerReplacement
  - integerToEnglishWords
  - integerToRoman
  - interleavingString
  - intersectionOfTwoArrays
  - intersectionOfTwoLinkedLists
  - intervalListIntersectons
  - invertBinaryTree
  - isSubsequence
  - islandPerimeter
  - isomorphicStrings
  - jewelsAndStones
  - jumpGame
  - kthLargestElementInAnArray
  - kthSmallestElementInaBST
  - largestColorValueInADirectedGraph
  - largestMergeOfTwoStrings
  - largestNumber
  - largestNumberAfterMutatingSubstring
  - largestPerimeterTriangle
  - largestRectangleInHistogram
  - largestSubmatrixWithRearrangements
  - largestSubstringBetweenTwoEqualCharacters
  - latestTimeByReplacingHiddenDigits
  - lengthOfLastWord
  - letterCombinationsOfAPhoneNumber
  - lexicographicalNumbers
  - lexicographicallySmallestStringAfterApplyingOperations
  - linkedListCycle
  - linkedListRandomNode
  - longerContiguousSegmentsOfOnesThanZeros
  - longestAbsoluteFilePath
  - longestCommonPrefix
  - longestConsecutiveSequence
  - longestIncreasingPathInAMatrix
  - longestIncreasingSubsequence
  - longestNiceSubstring
  - longestPalindrome
  - longestPalindromicSubsequence
  - longestPalindromicSubstring
  - longestSubstringOfAllVowelsInOrder
  - longestSubstringWithAtLeastKRepeatingCharacters
  - longestSubstringWithAtMostTwoDistinctCharacters
  - longestSubstringWithoutRepeatingCharacters
  - longestTurbulentSubarray
  - longestValidParentheses
  - lowestCommonAncestorOfABinarySearchTree
  - lowestCommonAncestorOfABinaryTree
  - majorityElement
  - makeTheXorOfAllSegmentsEqualToZero
  - mapOfHighestPeak
  - matrixCellsInDistanceOrder
  - maxAreaOfIsland
  - maxPointsOnALine
  - maximalRectangle
  - maximalSquare
  - maximizeNumberOfNiceDivisors
  - maximizePalindromeLengthFromSubsequences
  - maximizeScoreAfterNOperations
  - maximumAbsoluteSumOfAnySubarray
  - maximumAscendingSubarraySum
  - maximumAveragePassRatio
  - maximumAverageSubarray
  - maximumBuildingHeight
  - maximumDepthOfBinaryTree
  - maximumDistanceBetweenAPairOfValues
  - maximumElementAfterDecreasingAndRearranging
  - maximumErasureValue
  - maximumGap
  - maximumIceCreamBars
  - maximumNumberOfBallsInABox
  - maximumNumberOfConsecutiveValuesYouCanMake
  - maximumNumberOfEventsThatCanBeAttended
  - maximumNumberOfGroupsGettingFreshDonuts
  - maximumNumberOfWordsYouCanType
  - maximumPopulationYear
  - maximumProductOfTwoElementsInAnArray
  - maximumProductOfWordLengths
  - maximumProductSubarray
  - maximumScoreFromPerformingMultiplicationOperations
  - maximumScoreFromRemovingStones
  - maximumScoreFromRemovingSubstrings
  - maximumScoreOfAGoodSubarray
  - maximumSubArray
  - maximumSubarrayMinProduct
  - maximumUnitsOnATruck
  - maximumValueAfterInsertion
  - maximumValueAtAGivenIndexInABoundedArray
  - maximumXorForEachQuery
  - medianOfTwoSortedArrays
  - mergeIntervals
  - mergeKSortedLists
  - mergeStringsAlternately
  - mergeTwoSortedArray
  - mergeTwoSortedList
  - minCostClimbingStairs
  - minStack
  - miniParser
  - minimizeMaximumPairSumInArray
  - minimumASCIIDeleteSumForTwoStrings
  - minimumAbsoluteSumDifference
  - minimumAdjacentSwapsToReachTheKthSmallestNumber
  - minimumChangesToMakeAlternatingBinaryString
  - minimumCostForTickets
  - minimumDegreeOfAConnectedTrioInAGraph
  - minimumDepthOfBinaryTree
  - minimumDistanceToTheTargetElement
  - minimumElementsToAddToFormAGivenSum
  - minimumFallingPathSum
  - minimumHeightTrees
  - minimumInsertionsToBalanceAParenthesesString
  - minimumIntervalToIncludeEachQuery
  - minimumLengthOfStringAfterDeletingSimilarEnds
  - minimumLimitOfBallsInABag
  - minimumNumberOfOperationsToMoveAllBallsToEachBox
  - minimumNumberOfOperationsToReinitializeAPermutation
  - minimumNumberOfPeopleToTeach
  - minimumOperationsToMakeArrayEqual
  - minimumOperationsToMakeTheArrayIncreasing
  - minimumPathSum
  - minimumSidewayJumps
  - minimumSizeSubarraySum
  - minimumSpeedToArriveOnTime
  - minimumWindowSubstring
  - mirrorReflection
  - missingNumber
  - missingRanges
  - mostCommonWord
  - moveZeroes
  - multiplyStrings
  - nQueens
  - nRepeatedElementInSize2NArray
  - nextPermutation
  - nimGame
  - nthDigit
  - numberOf1Bits
  - numberOfDifferentIntegersInAString
  - numberOfDifferentSubsequencesGcds
  - numberOfDigitOne
  - numberOfGoodWaysToSplitAString
  - numberOfIslands
  - numberOfOrdersInTheBacklog
  - numberOfRecentCalls
  - numberOfRectanglesThatCanFormTheLargestSquare
  - numberOfRestrictedPathsFromFirstToLastNode
  - numberOfStudentsUnableToEatLunch
  - numberOfSubArraysWithOddSum
  - numberOfSubstringsWithOnly1s
  - oddEvenLinkedList
  - oneEditDistance
  - palindromeLinkedList
  - palindromeNumber
  - palindromePairs
  - palindromePartitioning
  - palindromicSubstrings
  - partitionEqualSubsetSum
  - partitionList
  - pascalTriangle
  - patchingArray
  - pathSum
  - peakIndexInAMountainArray
  - peekingIterator
  - perfectRectangle
  - perfectSquares
  - permutationSequence
  - permutations
  - plusOne
  - populatingNextRightPointersInEachNode
  - pow
  - powerOfFour
    - PowerOfFour.cpp
  - powerOfThree
  - powerOfTwo
  - processTasksUsingServers
  - productOfArrayExceptSelf
  - queriesOnNumberOfPointsInsideACircle
  - queueReconstructionByHeight
  - randomPickIndex
  - randomPointInNonOverlappingRectangles
  - rangeSumQuery-Immutable
  - rangeSumQuery2D-Immutable
  - ransomNote
  - readNCharactersGivenRead4
  - reconstructItinerary
  - recoverATreeFromPreorderTraversal
  - recoverBinarySearchTree
  - rectangleArea
  - reformatPhoneNumber
  - regularExpressionMatching
  - removeDuplicateLetters
  - removeDuplicatesFromSortedArray
  - removeDuplicatesFromSortedList
  - removeElement
  - removeInvalidParentheses
  - removeKDigits
  - removeLinkedListElements
  - removeNthNodeFromEndOfList
  - reorderList
  - repeatedDNASequences
  - replaceAllDigitsWithCharacters
  - restoreIPAddresses
  - restoreTheArrayFromAdjacentPairs
  - reverseBits
  - reverseInteger
  - reverseLinkedList
  - reverseNodesInKGroup
  - reverseString
  - reverseVowelsOfAString
  - reverseWordsInAString
  - romanToInteger
  - rotateArray
  - rotateFunction
  - rotateImage
  - rotateList
  - rotatingTheBox
  - sameTree
  - satisfiabilityOfEqualityEquations
  - scrambleString
  - search2DMatrix
  - searchForRange
  - searchInRotatedSortedArray
  - searchInsertPosition
  - seatReservationManager
  - secondLargestDigitInAString
  - sentenceScreenFitting
  - sentenceSimilarity
  - serializeAndDeserializeBinaryTree
  - setMatrixZeroes
  - shortEncodingOfWords
  - shortestPalindrome
  - shuffleAnArray
  - shuffleString
  - shuffleTheArray
  - signOfTheProductOfAnArray
  - simplifyPath
  - singleNumber
  - singleThreadedCpu
  - slidingWindowMaximum
  - smallestStringStartingFromLeaf
  - sortArrayByParity
  - sortColors
  - sortList
  - sortingTheSentence
  - spiralMatrix
  - splitArrayLargestSum
  - splittingAStringIntoDescendingConsecutiveValues
  - sqrt
  - squaresOfASortedArray
  - strStr
  - stringToIntegerAtoi
  - stringWithoutAAAOrBBB
  - subsets
  - substringWithConcatenationOfAllWords
  - substringsOfSizeThreeWithDistinctCharacters
  - sudokuSolver
  - sumOfBeautyOfAllSubstrings
  - sumOfDigitsInBaseK
  - sumOfDigitsOfStringAfterConvert
  - sumOfEvenNumbersAfterQueries
  - sumOfFlooredPairs
  - sumOfLeftLeaves
  - sumOfTwoIntegers
  - sumOfUniqueElements
  - sumRootToLeafNumber
  - summaryRanges
  - superUglyNumber
  - surroundedRegions
  - swapNodesInPairs
  - symmetricTree
  - targetSum
  - textJustification
  - theSkylineProblem
  - thirdMaximumNumber
  - thousandSeparator
  - threeConsecutiveOdds
  - timeBasedKeyValueStore
  - timeNeededToInformAllEmployees
  - topKFrequentElements
  - totalHammingDistance
  - trappingRainWater
  - treeOfCoprimes
  - triangle
  - triplesWithBitwiseANDEqualToZero
  - truncateSentence
  - tupleWithSameProduct
  - twoArraysEqualByReversingSubArrays
  - twoCityScheduling
  - twoSum
  - uglyNumber
  - uniqueBinarySearchTrees
  - uniqueEmailAddresses
  - uniqueMorseCodeWords
  - uniqueNumberOfOccurrences
  - uniquePaths
  - validNumber
  - validPalindrome
  - validParentheses
  - validPerfectSquare
  - validSudoku
  - validateBinarySearchTree
  - verifyPreorderSerializationOfABinaryTree
  - verticalOrderTraversalOfABinaryTree
  - videoStitching
  - waysToSplitArrayIntoThreeSubarrays
  - wiggleSort
  - wiggleSubsequence
  - wildcardMatching
  - wordBreak
  - wordLadder
  - wordPattern
  - wordSearch
  - zigZagConversion
- golang
- java
- python
database
scripts
shell
.gitignore
README.md

powerOfFour

May 29, 2016

66bca09 · May 29, 2016

Name	Name	Last commit message	Last commit date
parent directory ..
PowerOfFour.cpp	PowerOfFour.cpp	the solution of problem "Power of Four"	May 29, 2016

Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Files

powerOfFour

powerOfFour

Files

powerOfFour

Directory actions

More options

Directory actions

More options

Latest commit

History

powerOfFour

Folders and files

parent directory