HackerRankGPT/hackerrank-java-solutions

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In this repository, you will find updated Java solutions for all HackerRank problems as of 2024.
Repo gathered by CodeRankGPT - Solve HackerRank coding problems during your coding interview, in real-time and undetectable 😎

SubdomainChallengeSolutionScore
IntroductionWelcome to JavaWelcomeToJava.java20
IntroductionJava Stdin & Stdout IJavaStdinAndStdoutI.java35
IntroductionJava If ElseJavaIfElse.java25
IntroductionJava Stdin & Stdout IIJavaStdinAndStdoutII.java40
IntroductionJava Output FormatJavaOutputFormatting.java15
IntroductionJava Loops IJavaLoopsI.java45
IntroductionJava Loops IIJavaLoopsII.java30
IntroductionJava Data typesJavaDatatypes.java10
IntroductionJava End of fileJavaEndOfFile.java50
IntroductionJava Static Init BlockJavaStaticInitializerBlock.java20
IntroductionJava Int to String ConversionJavaIntToString.java35
IntroductionJava Date & TimeJavaDateAndTime.java45
IntroductionJava Currency FormatterJavaCurrencyFormatter.java25
StringsJava Strings IntroJavaStringsIntroduction.java20
StringsJava SubstringJavaSubstring.java15
StringsJava Substring ComparisonJavaSubstringComparisons.java40
StringsJava String ReverseJavaStringReverse.java30
StringsJava Anagram CheckJavaAnagrams.java50
StringsJava String TokensJavaStringTokens.java10
StringsPattern Syntax CheckPatternSyntaxChecker.java20
StringsValid Username RegexValidUsernameRegularExpression.java35
StringsTag Content ExtractionTagContentExtractor.java45
StringsJava RegexJavaRegex.java15
StringsJava Regex 2JavaRegex2DuplicateWords.java20
BigIntegerJava Big IntegerJavaBigInteger.java50
BigIntegerJava Big DecimalJavaBigDecimal.java30
BigIntegerJava Primality TestJavaPrimalityTest.java10
Data StructuresJava 1D Array IntroJava1DArray.java40
Data StructuresJava 2D ArrayJava2DArray.java15
Data StructuresJava SubarrayJavaSubarray.java25
Data StructuresJava Array ListJavaArraylist.java20
Data StructuresJava MapJavaMap.java35
Data StructuresJava Hash SetJavaHashset.java50
Data StructuresJava ComparatorJavaComparator.java45
Data StructuresJava SortingJavaSort.java20
Data StructuresJava ListJavaList.java15
Data StructuresJava GenericsJavaGenerics.java30
Data StructuresJava StackJavaStack.java25
Data StructuresJava DequeueJavaDequeue.java35
Data StructuresJava Bit SetJavaBitSet.java50
Data StructuresJava Priority QueueJavaPriorityQueue.java
DayDifficultyScoreChallengeSolution
Day 0Easy30Hello worldsolution-hello-world.java
Day 1Easy30DataTypessolution-data-types.java
Day 2Easy30Operatorssolution-operators.java
Day 3Easy30Intro to Conditional Statementssolution-intro-to-conditional-statements.java
Day 4Easy30Class Vs. Instancesolution-class-vs-instance.java
Day 5Easy30Loopssolution-loops.java
Day 6Easy30Lets Reviewsolution-review-loop.java
Day 7Easy30Arrayssolution-arrays.java
Day 8Easy30Dictionaries and Mapssolution-dictionaries-and-maps.java
Day 9Easy30Recursion3solution-recursion.java
Day 10Easy30Binary Numberssolution-binary-numbers.java
Day 11Easy302d Arrayssolution-2d-arrays.java
Day 12Easy30Inheritancesolution-inheritance.java
Day 13Easy30Abstract Classessolution-abstract-classes.java
Day 14Easy30Scopesolution-scope.java
Day 15Easy30Linked listssolution-linked-list.java
Day 16Easy30Exceptions-String to Integersolution-exceptions-string-to-integer.java
Day 17Easy30More Exceptionssolution-more-exceptions.java
Day 18Easy30Queues and Stackssolution-queues-stacks.java
Day 19Easy30Interfacessolution-interfaces.java
Day 20Easy30Sortingsolution-sorting.java
Day 21Easy30Genericssolution-generics.java
Day 22Easy30Binary Search Treessolution-binary-search-trees.java
Day 23Easy30BST Level-order traversalsolution-bst-level-order-traversal.java
Day 24Easy30More Linked Listssolution-more-linked-lists.java
Day 25Medium30Running Time and Complexitysolution-running-time-and-complexity.java
Day 26Easy30Nested Logicsolution-nested-logic.java
Day 27Easy30Testingsolution-testing.java
Day 28Medium30RegEx, Patterns and Intro to Databasessolution-regex-patterns.java
Day 29Medium30Bitwise ANDsolution-bitwise-and.java

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