add ds links

Author: mahendra-rk

README.md

@@ -82,20 +82,193 @@ You can also refer to my [Java Notes](http://blog.rampatra.com/category/java) fo
        - [TwoStacksInOneArray](/src/main/java/com/rampatra/arrays/TwoStacksInOneArray.java)
        - [UnsortedSubArray](/src/main/java/com/rampatra/arrays/UnsortedSubArray.java)
     2. [Backtracking](/src/main/java/com/rampatra/backtracking)
+       - [KnightTour](/src/main/java/com/rampatra/backtracking/KnightTour.java)
+       - [RatInAMaze](/src/main/java/com/rampatra/backtracking/RatInAMaze.java)
     3. [Bits](/src/main/java/com/rampatra/bits)
+       - [AbsWithoutBranching](/src/main/java/com/rampatra/bits/AbsWithoutBranching.java)
+       - [Addition](/src/main/java/com/rampatra/bits/Addition.java)
+       - [BinaryGap](/src/main/java/com/rampatra/bits/BinaryGap.java)
+       - [BinaryString](/src/main/java/com/rampatra/bits/BinaryString.java)
+       - [BooleanArrayPuzzle](/src/main/java/com/rampatra/bits/BooleanArrayPuzzle.java)
+       - [ConvertAToB](/src/main/java/com/rampatra/bits/ConvertAToB.java)
+       - [CountSetBits](/src/main/java/com/rampatra/bits/CountSetBits.java)
+       - [CountSetBitsFromMinusNtoN](/src/main/java/com/rampatra/bits/CountSetBitsFromMinusNtoN.java)
+       - [ElementOccurringOnce](/src/main/java/com/rampatra/bits/ElementOccurringOnce.java)
+       - [FlippingBits](/src/main/java/com/rampatra/bits/FlippingBits.java)
+       - [IntegerOverflow](/src/main/java/com/rampatra/bits/IntegerOverflow.java)
+       - [LittleAndBigEndian](/src/main/java/com/rampatra/bits/LittleAndBigEndian.java)
+       - [MaxWithoutBranching](/src/main/java/com/rampatra/bits/MaxWithoutBranching.java)
+       - [Modulo](/src/main/java/com/rampatra/bits/Modulo.java)
+       - [MultipleOf3](/src/main/java/com/rampatra/bits/MultipleOf3.java)
+       - [Multiply](/src/main/java/com/rampatra/bits/Multiply.java)
+       - [NextHigherNumber](/src/main/java/com/rampatra/bits/NextHigherNumber.java)
+       - [NextPowerOf2](/src/main/java/com/rampatra/bits/NextPowerOf2.java)
+       - [OppositeSign](/src/main/java/com/rampatra/bits/OppositeSign.java)
+       - [Parity](/src/main/java/com/rampatra/bits/Parity.java)
+       - [PowerOf2](/src/main/java/com/rampatra/bits/PowerOf2.java)
+       - [PowerOf4](/src/main/java/com/rampatra/bits/PowerOf4.java)
+       - [README.md](/src/main/java/com/rampatra/bits/README.md)
+       - [ReverseBits](/src/main/java/com/rampatra/bits/ReverseBits.java)
+       - [RightShiftOperator](/src/main/java/com/rampatra/bits/RightShiftOperator.java)
+       - [RightmostSetBit](/src/main/java/com/rampatra/bits/RightmostSetBit.java)
+       - [RotateBits](/src/main/java/com/rampatra/bits/RotateBits.java)
+       - [ShiftByNegativeNumber](/src/main/java/com/rampatra/bits/ShiftByNegativeNumber.java)
+       - [SmallestOf3Integers](/src/main/java/com/rampatra/bits/SmallestOf3Integers.java)
+       - [StrCmp](/src/main/java/com/rampatra/bits/StrCmp.java)
+       - [SubBit](/src/main/java/com/rampatra/bits/SubBit.java)
+       - [SwapBits](/src/main/java/com/rampatra/bits/SwapBits.java)
+       - [TwoNonRepeatingElements](/src/main/java/com/rampatra/bits/TwoNonRepeatingElements.java)
     4. [Blockchain Demo](/src/main/java/com/rampatra/blockchain)
+       - [Block](/src/main/java/com/rampatra/blockchain/Block.java)
+       - [Blockchain](/src/main/java/com/rampatra/blockchain/Blockchain.java)
+       - [Message](/src/main/java/com/rampatra/blockchain/Message.java)
+       - [MessageHandler](/src/main/java/com/rampatra/blockchain/MessageHandler.java)
+       - [P2P](/src/main/java/com/rampatra/blockchain/P2P.java)
+       - [Peer](/src/main/java/com/rampatra/blockchain/Peer.java)
     5. [Dynamic Programming](/src/main/java/com/rampatra/dynamicprogramming)
+       - [FibonacciNumbers](/src/main/java/com/rampatra/dynamicprogramming/FibonacciNumbers.java)
+       - [LongestIncreasingSubSequence](/src/main/java/com/rampatra/dynamicprogramming/LongestIncreasingSubSequence.java)
+       - [MaximumRectangleOf1sInMatrix](/src/main/java/com/rampatra/dynamicprogramming/MaximumRectangleOf1sInMatrix.java)
+       - [MinimumJumpsToReachEnd](/src/main/java/com/rampatra/dynamicprogramming/MinimumJumpsToReachEnd.java)
     6. [Graphs](/src/main/java/com/rampatra/graphs)
-    7. [Java 8](/src/main/java/com/rampatra/java8) 
+    7. [Java 8](/src/main/java/com/rampatra/java8)
+       - [DateTime](/src/main/java/com/rampatra/java8/DateTime.java)
+       - [FlatMapInStreams](/src/main/java/com/rampatra/java8/FlatMapInStreams.java)
+       - [Lambdas](/src/main/java/com/rampatra/java8/Lambdas.java)
+       - [Streams](/src/main/java/com/rampatra/java8/Streams.java)
     8. [Linked Lists](/src/main/java/com/rampatra/linkedlists)
+       - [AddNumbersInTwoLists](/src/main/java/com/rampatra/linkedlists/AddNumbersInTwoLists.java)
+       - [CloneWithRandPointers](/src/main/java/com/rampatra/linkedlists/CloneWithRandPointers.java)
+       - [DeleteAlternateNodes](/src/main/java/com/rampatra/linkedlists/DeleteAlternateNodes.java)
+       - [DeleteLesserNodes](/src/main/java/com/rampatra/linkedlists/DeleteLesserNodes.java)
+       - [DeleteMnodesAfterNnodes](/src/main/java/com/rampatra/linkedlists/DeleteMnodesAfterNnodes.java)
+       - [DeleteNode](/src/main/java/com/rampatra/linkedlists/DeleteNode.java)
+       - [DetectAndRemoveLoop](/src/main/java/com/rampatra/linkedlists/DetectAndRemoveLoop.java)
+       - [DetectLoop](/src/main/java/com/rampatra/linkedlists/DetectLoop.java)
+       - [DivideCircularListIntoTwo](/src/main/java/com/rampatra/linkedlists/DivideCircularListIntoTwo.java)
+       - [FlattenMultiLevelLinkedList](/src/main/java/com/rampatra/linkedlists/FlattenMultiLevelLinkedList.java)
+       - [Identical](/src/main/java/com/rampatra/linkedlists/Identical.java)
+       - [InsertInSortedCircularLinkedList](/src/main/java/com/rampatra/linkedlists/InsertInSortedCircularLinkedList.java)
+       - [InsertInSortedList](/src/main/java/com/rampatra/linkedlists/InsertInSortedList.java)
+       - [IntersectionAndUnionOf2Lists](/src/main/java/com/rampatra/linkedlists/IntersectionAndUnionOf2Lists.java)
+       - [IntersectionOf2SortedLists](/src/main/java/com/rampatra/linkedlists/IntersectionOf2SortedLists.java)
+       - [IntersectionPointOfTwoLists](/src/main/java/com/rampatra/linkedlists/IntersectionPointOfTwoLists.java)
+       - [LRUCache](/src/main/java/com/rampatra/linkedlists/LRUCache.java)
+       - [MaximumSumLinkedList](/src/main/java/com/rampatra/linkedlists/MaximumSumLinkedList.java)
+       - [MergeSort](/src/main/java/com/rampatra/linkedlists/MergeSort.java)
+       - [MergeSortDoubleLinkedList](/src/main/java/com/rampatra/linkedlists/MergeSortDoubleLinkedList.java)
+       - [MergeTwoLinkedListAlternatively](/src/main/java/com/rampatra/linkedlists/MergeTwoLinkedListAlternatively.java)
+       - [MergeTwoSortedLists](/src/main/java/com/rampatra/linkedlists/MergeTwoSortedLists.java)
+       - [MiddleNode](/src/main/java/com/rampatra/linkedlists/MiddleNode.java)
+       - [MoveLastNodeToFirst](/src/main/java/com/rampatra/linkedlists/MoveLastNodeToFirst.java)
+       - [NthNodeFromLast](/src/main/java/com/rampatra/linkedlists/NthNodeFromLast.java)
+       - [PairWiseSwap](/src/main/java/com/rampatra/linkedlists/PairWiseSwap.java)
+       - [Palindrome](/src/main/java/com/rampatra/linkedlists/Palindrome.java)
+       - [QuickSort](/src/main/java/com/rampatra/linkedlists/QuickSort.java)
+       - [RandomNode](/src/main/java/com/rampatra/linkedlists/RandomNode.java)
+       - [RemoveDuplicates](/src/main/java/com/rampatra/linkedlists/RemoveDuplicates.java)
+       - [RemoveMiddlePointsFromLineSegments](/src/main/java/com/rampatra/linkedlists/RemoveMiddlePointsFromLineSegments.java)
+       - [ReverseAlternateNodesAndAppendAtEnd](/src/main/java/com/rampatra/linkedlists/ReverseAlternateNodesAndAppendAtEnd.java)
+       - [ReverseDoubleLinkedList](/src/main/java/com/rampatra/linkedlists/ReverseDoubleLinkedList.java)
+       - [ReverseLinkedListInAlternateGroups](/src/main/java/com/rampatra/linkedlists/ReverseLinkedListInAlternateGroups.java)
+       - [ReverseLinkedListInGroups](/src/main/java/com/rampatra/linkedlists/ReverseLinkedListInGroups.java)
+       - [ReverseSingleLinkedList](/src/main/java/com/rampatra/linkedlists/ReverseSingleLinkedList.java)
+       - [RotateLinkedList](/src/main/java/com/rampatra/linkedlists/RotateLinkedList.java)
+       - [SegregateEvenOddNumbers](/src/main/java/com/rampatra/linkedlists/SegregateEvenOddNumbers.java)
+       - [SortAlternativelySortedLinkedList](/src/main/java/com/rampatra/linkedlists/SortAlternativelySortedLinkedList.java)
+       - [SortLinkedListOf0s1s2s](/src/main/java/com/rampatra/linkedlists/SortLinkedListOf0s1s2s.java)
+       - [SortedDLLToBBST](/src/main/java/com/rampatra/linkedlists/SortedDLLToBBST.java)
+       - [StackWithOperationOnMiddleElement](/src/main/java/com/rampatra/linkedlists/StackWithOperationOnMiddleElement.java)
+       - [SwapKthNode](/src/main/java/com/rampatra/linkedlists/SwapKthNode.java)
+       - [SwapNodes](/src/main/java/com/rampatra/linkedlists/SwapNodes.java)
+       - [TripletFromThreeLinkedLists](/src/main/java/com/rampatra/linkedlists/TripletFromThreeLinkedLists.java)
     9. [Miscellaneous](/src/main/java/com/rampatra/misc)
+       - [BotTesting](/src/main/java/com/rampatra/misc/BotTesting.java)
+       - [BreakParagraph](/src/main/java/com/rampatra/misc/BreakParagraph.java)
+       - [CollectionIteration](/src/main/java/com/rampatra/misc/CollectionIteration.java)
+       - [DivideByZero](/src/main/java/com/rampatra/misc/DivideByZero.java)
+       - [Equals](/src/main/java/com/rampatra/misc/Equals.java)
+       - [GarbageCollection](/src/main/java/com/rampatra/misc/GarbageCollection.java)
+       - [GenericNonGenericMix](/src/main/java/com/rampatra/misc/GenericNonGenericMix.java)
+       - [HitCount](/src/main/java/com/rampatra/misc/HitCount.java)
+       - [MapReduce](/src/main/java/com/rampatra/misc/MapReduce.java)
+       - [MapWithTimestamp](/src/main/java/com/rampatra/misc/MapWithTimestamp.java)
+       - [MethodLocalVSInner](/src/main/java/com/rampatra/misc/MethodLocalVSInner.java)
+       - [MethodOverloading](/src/main/java/com/rampatra/misc/MethodOverloading.java)
+       - [Outer](/src/main/java/com/rampatra/misc/Outer.java)
+       - [OuterClassAccess](/src/main/java/com/rampatra/misc/OuterClassAccess.java)
+       - [RandomTest](/src/main/java/com/rampatra/misc/RandomTest.java)
+       - [ReadFile](/src/main/java/com/rampatra/misc/ReadFile.java)
+       - [RecursiveWarmup](/src/main/java/com/rampatra/misc/RecursiveWarmup.java)
+       - [RegexReplaceAllSpaces](/src/main/java/com/rampatra/misc/RegexReplaceAllSpaces.java)
+       - [RegexValidateLatLong](/src/main/java/com/rampatra/misc/RegexValidateLatLong.java)
+       - [ReverseAndAdd](/src/main/java/com/rampatra/misc/ReverseAndAdd.java)
+       - [TreeList](/src/main/java/com/rampatra/misc/TreeList.java)
+       - [parenthesis](/src/main/java/com/rampatra/misc/parenthesis.txt)
+       - [reverseandadd](/src/main/java/com/rampatra/misc/reverseandadd.txt)
     10. [Permutations](/src/main/java/com/rampatra/permutations)
+         - [StringPermutations](/src/main/java/com/rampatra/permutations/StringPermutations.java)
+         - [StringPermutationsCount](/src/main/java/com/rampatra/permutations/StringPermutationsCount.java)
+         - [StringPermutationsWithDuplicates](/src/main/java/com/rampatra/permutations/StringPermutationsWithDuplicates.java)
+         - [UppercaseLowercasePermutations](/src/main/java/com/rampatra/permutations/UppercaseLowercasePermutations.java)
     11. [Searching](/src/main/java/com/rampatra/searching)
+         - [BinarySearch](/src/main/java/com/rampatra/searching/BinarySearch.java)
+         - [InterpolationSearch](/src/main/java/com/rampatra/searching/InterpolationSearch.java)
     12. [Sorting](/src/main/java/com/rampatra/sorting)
+         - [BubbleSort](/src/main/java/com/rampatra/sorting/BubbleSort.java)
+         - [CheckSorted](/src/main/java/com/rampatra/sorting/CheckSorted.java)
+         - [HeapSort](/src/main/java/com/rampatra/sorting/HeapSort.java)
+         - [MergeSort](/src/main/java/com/rampatra/sorting/MergeSort.java)
+         - [MergeSortSpaceOptimized](/src/main/java/com/rampatra/sorting/MergeSortSpaceOptimized.java)
+         - [PancakeSort](/src/main/java/com/rampatra/sorting/PancakeSort.java)
+         - [QuickSort](/src/main/java/com/rampatra/sorting/QuickSort.java)
+         - [SelectionSort](/src/main/java/com/rampatra/sorting/SelectionSort.java)
+         - [WiggleSort](/src/main/java/com/rampatra/sorting/WiggleSort.java)
     13. [Stacks](/src/main/java/com/rampatra/stacks)
+         - [BalancingParenthesis](/src/main/java/com/rampatra/stacks/BalancingParenthesis.java)
+         - [MaxRectangleAreaInHistogram](/src/main/java/com/rampatra/stacks/MaxRectangleAreaInHistogram.java)
     14. [Strings](/src/main/java/com/rampatra/strings)
+         - [AnagramsTogether](/src/main/java/com/rampatra/strings/AnagramsTogether.java)
+         - [AnagramsTogetherLexicographically](/src/main/java/com/rampatra/strings/AnagramsTogetherLexicographically.java)
+         - [BasicRegexParser](/src/main/java/com/rampatra/strings/BasicRegexParser.java)
+         - [CompressString](/src/main/java/com/rampatra/strings/CompressString.java)
+         - [IntegerToString](/src/main/java/com/rampatra/strings/IntegerToString.java)
+         - [KeepOnlyKConsecutiveLetters](/src/main/java/com/rampatra/strings/KeepOnlyKConsecutiveLetters.java)
+         - [NearPalindrome](/src/main/java/com/rampatra/strings/NearPalindrome.java)
+         - [RemoveDuplicatesAndArrangeLetters](/src/main/java/com/rampatra/strings/RemoveDuplicatesAndArrangeLetters.java)
+         - [RemoveExtraSpaces](/src/main/java/com/rampatra/strings/RemoveExtraSpaces.java)
+         - [StringRotation](/src/main/java/com/rampatra/strings/StringRotation.java)
+         - [StringToInteger](/src/main/java/com/rampatra/strings/StringToInteger.java)
+         - [SubStringCheck](/src/main/java/com/rampatra/strings/SubStringCheck.java)
+         - [SubStrings](/src/main/java/com/rampatra/strings/SubStrings.java)
+         - [WithoutString](/src/main/java/com/rampatra/strings/WithoutString.java)
     15. [Threads](/src/main/java/com/rampatra/threads)
+         - [Basics](/src/main/java/com/rampatra/threads/Basics.java)
+         - [NamePrint](/src/main/java/com/rampatra/threads/NamePrint.java)
+         - [ProducerConsumerUsingLockApi](/src/main/java/com/rampatra/threads/ProducerConsumerUsingLockApi.java)
+         - [ProducerConsumerUsingWaitNotify](/src/main/java/com/rampatra/threads/ProducerConsumerUsingWaitNotify.java)
+         - [SimpleDeadlock](/src/main/java/com/rampatra/threads/SimpleDeadlock.java)
     16. [Trees](/src/main/java/com/rampatra/trees)
+         - [BFSUsingQueue](/src/main/java/com/rampatra/trees/BFSUsingQueue.java)
+         - [CheckForBST](/src/main/java/com/rampatra/trees/CheckForBST.java)
+         - [ChildrenSum](/src/main/java/com/rampatra/trees/ChildrenSum.java)
+         - [ConnectNodesAtSameLevel](/src/main/java/com/rampatra/trees/ConnectNodesAtSameLevel.java)
+         - [ConstructTreeFromInOrderAndPreOrder](/src/main/java/com/rampatra/trees/ConstructTreeFromInOrderAndPreOrder.java)
+         - [DoubleTree](/src/main/java/com/rampatra/trees/DoubleTree.java)
+         - [HeightBalanced](/src/main/java/com/rampatra/trees/HeightBalanced.java)
+         - [IdenticalTrees](/src/main/java/com/rampatra/trees/IdenticalTrees.java)
+         - [InOrderUsingStack](/src/main/java/com/rampatra/trees/InOrderUsingStack.java)
+         - [InOrderWithoutStackAndRecursion](/src/main/java/com/rampatra/trees/InOrderWithoutStackAndRecursion.java)
+         - [LeafNodes](/src/main/java/com/rampatra/trees/LeafNodes.java)
+         - [LeastCommonAncestorInBST](/src/main/java/com/rampatra/trees/LeastCommonAncestorInBST.java)
+         - [LeastCommonAncestorInBT](/src/main/java/com/rampatra/trees/LeastCommonAncestorInBT.java)
+         - [MirrorTree](/src/main/java/com/rampatra/trees/MirrorTree.java)
+         - [RandomNodeInBT](/src/main/java/com/rampatra/trees/RandomNodeInBT.java)
+         - [RootToLeafPaths](/src/main/java/com/rampatra/trees/RootToLeafPaths.java)
+         - [SecondSmallestInBST](/src/main/java/com/rampatra/trees/SecondSmallestInBST.java)
+         - [SpiralTraversal](/src/main/java/com/rampatra/trees/SpiralTraversal.java)
+         - [TreeToList](/src/main/java/com/rampatra/trees/TreeToList.java)
+         - [TwoSwappedNodesInBST](/src/main/java/com/rampatra/trees/TwoSwappedNodesInBST.java)
 2. [Cracking the Coding Interview](/src/main/java/com/ctci):  
     1. [Arrays and Strings](/src/main/java/com/ctci/arraysandstrings)
     2. [Linked Lists](/src/main/java/com/ctci/linkedlists)