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01Matrix.java

01Matrix.java

 
 

132pattern.java

132pattern.java

 
 

3Sum.java

3Sum.java

 
 

3sumClosest.java

3sumClosest.java

 
 

AddAndSearchWordDataStructureDesign.java

AddAndSearchWordDataStructureDesign.java

 
 

AddTwoNumbersLL.java

AddTwoNumbersLL.java

 
 

AlienDictionary.java

AlienDictionary.java

 
 

BSTtoGreaterSumTree.java

BSTtoGreaterSumTree.java

 
 

BestTimeToBuyAndSellAStock.java

BestTimeToBuyAndSellAStock.java

 
 

BinaryTreeLevelOrderTraversal.java

BinaryTreeLevelOrderTraversal.java

 
 

ConstructTreeFromPreAndPost.java

ConstructTreeFromPreAndPost.java

 
 

ConvertBinarySearchTreeToCircularDoublyLinkedList.java

ConvertBinarySearchTreeToCircularDoublyLinkedList.java

 
 

CopyLLWithRandomPointer.java

CopyLLWithRandomPointer.java

 
 

DesignHashMap.java

DesignHashMap.java

 
 

DesignTicTacToe.java

DesignTicTacToe.java

 
 

DesignUndergroundSystem.java

DesignUndergroundSystem.java

 
 

DialKeypadLetterCombinationsPhoneNumber.java

DialKeypadLetterCombinationsPhoneNumber.java

 
 

DiameterOfBT.java

DiameterOfBT.java

 
 

GameOfLife.java

GameOfLife.java

 
 

HasPathSum.java

HasPathSum.java

 
 

HasPathSumII.java

HasPathSumII.java

 
 

HouseRobber.java

HouseRobber.java

 
 

HouseRobberII.java

HouseRobberII.java

 
 

ImplementTrie.java

ImplementTrie.java

 
 

InsertDeleteGetRandomO(1).java

InsertDeleteGetRandomO(1).java

 
 

IntegerToEnglishWords.java

IntegerToEnglishWords.java

 
 

LRUcache.java

LRUcache.java

 
 

LeetCode Amazon sorted by frequency within last 6 months.xlsx

LeetCode Amazon sorted by frequency within last 6 months.xlsx

 
 

LinkedListCycle.java

LinkedListCycle.java

 
 

LongestPalindromicSubstring.java

LongestPalindromicSubstring.java

 
 

LongestSubstringWithoutRepeatingCharacters.java

LongestSubstringWithoutRepeatingCharacters.java

 
 

MaxWidthOfBT.java

MaxWidthOfBT.java

 
 

MergeKSortedLinkedLists.java

MergeKSortedLinkedLists.java

 
 

MinimumCostOfTickets.java

MinimumCostOfTickets.java

 
 

NestedListWeightSum.java

NestedListWeightSum.java

 
 

NumIslands.java

NumIslands.java

 
 

NumberOfDistinctIslands.java

NumberOfDistinctIslands.java

 
 

README.md

README.md

 
 

RangeSumQuery2DImmutable.png

RangeSumQuery2DImmutable.png

 
 

ReverseLinkedList.java

ReverseLinkedList.java

 
 

SearchA2DMatrix.java

SearchA2DMatrix.java

 
 

SearchA2DMatrixII.java

SearchA2DMatrixII.java

 
 

SearchSuggestionSystem.java

SearchSuggestionSystem.java

 
 

SerializeAndDeserializeBST.java

SerializeAndDeserializeBST.java

 
 

SerializeAndDeserializeBinaryTree.java

SerializeAndDeserializeBinaryTree.java

 
 

SingleNumber.java

SingleNumber.java

 
 

Strobogramattic.java

Strobogramattic.java

 
 

TimeBasedKeyValueStore.java

TimeBasedKeyValueStore.java

 
 

TopKFrequentElements.java

TopKFrequentElements.java

 
 

TopKFrequentWords.java

TopKFrequentWords.java

 
 

TwoSum2BSTs.java

TwoSum2BSTs.java

 
 

TwoSumBSTs.java

TwoSumBSTs.java

 
 

TwoSumLessThanK.java

TwoSumLessThanK.java

 
 

ValidPalindrome.java

ValidPalindrome.java

 
 

ValidPalindromeII.java

ValidPalindromeII.java

 
 

VowelSpellChecker.java

VowelSpellChecker.java

 
 

ZigZagTraversal.java

ZigZagTraversal.java

 
 

accountsMerge.java

accountsMerge.java

 
 

addBinary.java

addBinary.java

 
 

addBoldTagToString.java

addBoldTagToString.java

 
 

addStrings.java

addStrings.java

 
 

addTwoNumbersII.java

addTwoNumbersII.java

 
 

allPathsFromSourceToTarget.java

allPathsFromSourceToTarget.java

 
 

backspaceCompare.java

backspaceCompare.java

 
 

basicCalculatorII.java

basicCalculatorII.java

 
 

battleshipsOnBoard.java

battleshipsOnBoard.java

 
 

bestTimeToBuyAndSellAStockII.java

bestTimeToBuyAndSellAStockII.java

 
 

bestTimeToBuyAndSellAStockIII.java

bestTimeToBuyAndSellAStockIII.java

 
 

bestTimeToBuyAndSellStockII.java

bestTimeToBuyAndSellStockII.java

 
 

binarySearchTreeIterator.java

binarySearchTreeIterator.java

 
 

binaryTreeLongestConsecutiveSubsequence.java

binaryTreeLongestConsecutiveSubsequence.java

 
 

binaryTreeMaxPathSum.java

binaryTreeMaxPathSum.java

 
 

binaryTreePaths.java

binaryTreePaths.java

 
 

binaryTreePreorderTraversal.java

binaryTreePreorderTraversal.java

 
 

binaryTreeRightSideView.java

binaryTreeRightSideView.java

 
 

binaryTreeVerticalOrderTraversal.java

binaryTreeVerticalOrderTraversal.java

 
 

boatsToSavePeople.java

boatsToSavePeople.java

 
 

bulbSwitcher.java

bulbSwitcher.java

 
 

candyCrush.java

candyCrush.java

 
 

candyCrush1D.java

candyCrush1D.java

 
 

checkCompletenessOfBinaryTree.java

checkCompletenessOfBinaryTree.java

 
 

climbStairs.java

climbStairs.java

 
 

cloneGraph.java

cloneGraph.java

 
 

closestBinarySearchTreeValue.java

closestBinarySearchTreeValue.java

 
 

combinationSum.java

combinationSum.java

 
 

combinationSumII.java

combinationSumII.java

 
 

constructBinaryTreeFromPreorderAndInorderTraversal.java

constructBinaryTreeFromPreorderAndInorderTraversal.java

 
 

containerWithMostWater.java

containerWithMostWater.java

 
 

continugousSubarraySum.java

continugousSubarraySum.java

 
 

convertBSTtoGreaterTre.java

convertBSTtoGreaterTre.java

 
 

countCompleteTreeNodes.java

countCompleteTreeNodes.java

 
 

countConnectedComponenetsInUndirectedGraph.java

countConnectedComponenetsInUndirectedGraph.java

 
 

countUnivalueSubtrees.java

countUnivalueSubtrees.java

 
 

courseSchedule.java

courseSchedule.java

 
 

courseScheduleII.java

courseScheduleII.java

 
 

cousinsInBinaryTree.java

cousinsInBinaryTree.java

 
 

dailyTemperatures.java

dailyTemperatures.java

 
 

decodeString.java

decodeString.java

 
 

decodeWays.java

decodeWays.java

 
 

diagonalMatrixPrint.java

diagonalMatrixPrint.java

 
 

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Leetcode Solutions

  • Personal Leetcode source code written in Java.

  • TC/SC Analysis + Algorithm notes

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Personal leetcode solutions written in Java with Time/Space Complexity Analysis and pseudocode notes.

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