shivkrthakur/HackerRankSolutions

Hacker Rank problem solutions

C#, Java, JavaScript, Python and SQL solutions to the HackerRank programming problems

• CORE COMPUTER SCIENCE

  • Data Structures
    • Arrays
      • 2DArray-DS.cs  |  2DArray-DS.js
      • ArrayManipulation.cs  |  ArrayManipulation.js
      • Arrays-DS.cs  |  Arrays-DS.js
      • Big Sorting.cs  |  Big Sorting.js
      • Dynamic Array.cs  |  Dynamic Array.js
      • Left Rotation.cs  |  Left Rotation.js
      • Sparse Arrays.cs  |  Sparse Arrays.js
    • Stacks
      • BalancedBrackets.cs  |  BalancedBrackets.js
      • EqualStacks.cs  |  EqualStacks.js
      • MaximumElement.cs  |  MaximumElement.js
      • SimpleTextEditor.cs  |  SimpleTextEditor.js
    • Trees
      • Binary SearchTree Insertion.java
      • Binary Search Tree Lowest Common Ancestor.java
      • Is This a Binary Search Tree.java
      • Tree Height of a Binary Tree.java
      • Tree Huffman Decoding.java
      • Tree Inorder Traversal.java
      • Tree Level Order Traversal.java
      • Tree Post order Traversal.java
      • Tree Preorder Traversal.java
      • Tree Top View.java
  • General Programming
    • Basic Programming
      • A Very Big Sum.cs  |  A Very Big Sum.js
      • Compare The Triplets.cs  |  Compare The Triplets.js
    • Object-oriented Programming
    • RegEx
  • Algorithms
    • Strings
      • Alternating Characters.cs  |  Alternating Characters.js
      • Anagram.cs  |  Anagram.js
      • BeautifulBinaryString.cs  |  BeautifulBinaryString.js
      • BigSorting.cs  |  BigSorting.js
      • PalindromeIndex.cs  |  PalindromeIndex.js
      • CaesarCipher.cs  |  CaesarCipher.js
      • CaesarCipherEncryption.cs  |  CaesarCipherEncryption.js
      • CamelCase.cs  |  CamelCase.js
      • DeterminingDNAHealth.cs  |   JavaScript Solution Coming Soon
      • FunnyString.cs  |  FunnyString.js
      • GameOfThronesII.cs  |  GameOfThronesII.js
      • GemStones.cs  |  GemStones.js
      • MarsExploration.cs  |  MarsExploration.js
      • PalindromeIndex.cs  |  PalindromeIndex.js
    • GameTheory
    • GraphTheory
    • GreedyAlgorithms
    • Search
    • Sorting
    • Math
  • Implementation
    • Brute Force
  • Mathematics
    • Fundamentals
      • FindthePoint.cs
      • MaximumDraws.cs
      • ConnectingTowns.cs
      • Handshake.cs
      • LeonardosPrimeFactors.cs
      • ArmyGame.cs
      • MinimumHeightTriangle.cs
      • CuttingPaperSquares.cs
      • IsFibo.cs
      • HalloweenParty.cs
      • FillingJars.cs
      • SummingtheNseries.cs
      • SherlockandPermutations.cs
      • SherlockandMovingTiles.cs
      • StrangeGridAgain.cs
      • RussianPeasantExponentiation.cs
      • BestDivisor.cs
      • Restaurant.cs
      • ReverseGame.cs
      • DieHard3.cs
      • DiwaliLights.cs
      • PossiblePath.cs
    • Number Theory
      • Identify Smith Numbers.cs
      • Closest Number.cs
      • Mehta and his Laziness.cs
  • Debugging
    • Missing Lines

• SPECIALIZED SKILLS

  • SQL
    • MSSQL
      • Advanced Join
      • Advanced Select
      • Aggregation
      • Alternative Queries
      • Basic Join
      • Basic Select

• TUTORIALS

  • Cracking The Coding Interview
    • ArraysLeftRotation.cs  |   ArraysLeftRotation.js  |   ArraysLeftRotation.java  |   ArraysLeftRotation.py
    • BinarySearchIceCreamParlor.cs  |  BinarySearchIceCreamParlor.js
    • BitManipulationLonelyInteger.cs  |  BitManipulationLonelyInteger.js
    • DPCoinChange.cs
    • HashTablesRansomNote.cs  |  HashTablesRansomNote.js
    • LinkedListsDetectaCycle.java
    • MergeSortCountingInversions.cs  |  MergeSortCountingInversions.js
    • QueuesATaleofTwoStacks.cs  |  QueuesATaleofTwoStacks.js
    • RecursionDavisStaircase.cs  |  RecursionDavisStaircase.js
    • RecursionFibonacciNumbers.cs  |  RecursionFibonacciNumbers.js
    • SortingBubbleSort.cs  |  SortingBubbleSort.js
    • SortingComparator.java
    • StacksBalancedBrackets.cs  |  StacksBalancedBrackets.js
    • StringsMakingAnagrams.cs  |  StringsMakingAnagrams.js
    • TimeComplexityPrimality.cs  |  TimeComplexityPrimality.js
    • TreesIsThisaBinarySearchTree.cs  |  TreesIsThisaBinarySearchTree.js
    • TriesContacts.cs
  • 10 Days of JavaScript
    • Day 0: Hello World!.js
    • Day 0: Data Types.js
    • Day 1: Arithmetic Operators.js
    • Day 1: Functions.js

• LANGUAGES

  • Python
    • Introduction
      • Say Hello World! withPython.py  |  Say Hello World! with Python.py3
      • Python:If-Else.py  |  PythonIf-Else.py3
      • ArithmeticOperators.py  |  ArithmeticOperators.py3
      • Python:Division.py  |  Python:Division.py3
      • Loops.py  |  Loops.py3
      • Write a function.py  |  Write a function.py3
      • Print Function.py  |  Print Function.py3
    • Basic Data Types
      • Lists.py  |  Lists.py3
      • Tuples.py  |  Tuples.py3
      • ListComprehensions.py
      • FindtheSecondLargestNumber.py
      • NestedLists.py
      • Findingthepercentage.py
      • Findingthepercentage.py
    • Strings
      • sWAPcASE.py  |  sWAPcASE.py3
      • StringSplitandJoin.py  |  StringSplitandJoin.py3
      • WhatsYourName.py  |  WhatsYourName.py3
      • Mutations.py  |  Mutations.py3
      • Findastring.py
      • StringValidators.py
      • TextWrap.py
      • DesignerDoorMat.py
      • Capitalize.py
      • StringFormatting.py
      • TheMinionGame.py