diff --git a/DIRECTORY.md b/DIRECTORY.md
index ff56d16db947..5620cb3d84f1 100644
--- a/DIRECTORY.md
+++ b/DIRECTORY.md
@@ -29,8 +29,10 @@
           - 📄 [BcdConversion](src/main/java/com/thealgorithms/bitmanipulation/BcdConversion.java)
           - 📄 [BinaryPalindromeCheck](src/main/java/com/thealgorithms/bitmanipulation/BinaryPalindromeCheck.java)
           - 📄 [BitSwap](src/main/java/com/thealgorithms/bitmanipulation/BitSwap.java)
+          - 📄 [BitwiseGCD](src/main/java/com/thealgorithms/bitmanipulation/BitwiseGCD.java)
           - 📄 [BooleanAlgebraGates](src/main/java/com/thealgorithms/bitmanipulation/BooleanAlgebraGates.java)
           - 📄 [ClearLeftmostSetBit](src/main/java/com/thealgorithms/bitmanipulation/ClearLeftmostSetBit.java)
+          - 📄 [CountBitsFlip](src/main/java/com/thealgorithms/bitmanipulation/CountBitsFlip.java)
           - 📄 [CountLeadingZeros](src/main/java/com/thealgorithms/bitmanipulation/CountLeadingZeros.java)
           - 📄 [CountSetBits](src/main/java/com/thealgorithms/bitmanipulation/CountSetBits.java)
           - 📄 [FindNthBit](src/main/java/com/thealgorithms/bitmanipulation/FindNthBit.java)
@@ -74,6 +76,7 @@
           - 📄 [ECC](src/main/java/com/thealgorithms/ciphers/ECC.java)
           - 📄 [HillCipher](src/main/java/com/thealgorithms/ciphers/HillCipher.java)
           - 📄 [MonoAlphabetic](src/main/java/com/thealgorithms/ciphers/MonoAlphabetic.java)
+          - 📄 [PermutationCipher](src/main/java/com/thealgorithms/ciphers/PermutationCipher.java)
           - 📄 [PlayfairCipher](src/main/java/com/thealgorithms/ciphers/PlayfairCipher.java)
           - 📄 [Polybius](src/main/java/com/thealgorithms/ciphers/Polybius.java)
           - 📄 [ProductCipher](src/main/java/com/thealgorithms/ciphers/ProductCipher.java)
@@ -98,6 +101,7 @@
           - 📄 [BinaryToDecimal](src/main/java/com/thealgorithms/conversions/BinaryToDecimal.java)
           - 📄 [BinaryToHexadecimal](src/main/java/com/thealgorithms/conversions/BinaryToHexadecimal.java)
           - 📄 [BinaryToOctal](src/main/java/com/thealgorithms/conversions/BinaryToOctal.java)
+          - 📄 [CoordinateConverter](src/main/java/com/thealgorithms/conversions/CoordinateConverter.java)
           - 📄 [DecimalToAnyBase](src/main/java/com/thealgorithms/conversions/DecimalToAnyBase.java)
           - 📄 [DecimalToBinary](src/main/java/com/thealgorithms/conversions/DecimalToBinary.java)
           - 📄 [DecimalToHexadecimal](src/main/java/com/thealgorithms/conversions/DecimalToHexadecimal.java)
@@ -118,6 +122,7 @@
           - 📄 [PhoneticAlphabetConverter](src/main/java/com/thealgorithms/conversions/PhoneticAlphabetConverter.java)
           - 📄 [RgbHsvConversion](src/main/java/com/thealgorithms/conversions/RgbHsvConversion.java)
           - 📄 [RomanToInteger](src/main/java/com/thealgorithms/conversions/RomanToInteger.java)
+          - 📄 [TimeConverter](src/main/java/com/thealgorithms/conversions/TimeConverter.java)
           - 📄 [TurkishToLatinConversion](src/main/java/com/thealgorithms/conversions/TurkishToLatinConversion.java)
           - 📄 [UnitConversions](src/main/java/com/thealgorithms/conversions/UnitConversions.java)
           - 📄 [UnitsConverter](src/main/java/com/thealgorithms/conversions/UnitsConverter.java)
@@ -157,6 +162,7 @@
             - 📄 [BoruvkaAlgorithm](src/main/java/com/thealgorithms/datastructures/graphs/BoruvkaAlgorithm.java)
             - 📄 [ConnectedComponent](src/main/java/com/thealgorithms/datastructures/graphs/ConnectedComponent.java)
             - 📄 [Cycles](src/main/java/com/thealgorithms/datastructures/graphs/Cycles.java)
+            - 📄 [DialsAlgorithm](src/main/java/com/thealgorithms/datastructures/graphs/DialsAlgorithm.java)
             - 📄 [DijkstraAlgorithm](src/main/java/com/thealgorithms/datastructures/graphs/DijkstraAlgorithm.java)
             - 📄 [DijkstraOptimizedAlgorithm](src/main/java/com/thealgorithms/datastructures/graphs/DijkstraOptimizedAlgorithm.java)
             - 📄 [EdmondsBlossomAlgorithm](src/main/java/com/thealgorithms/datastructures/graphs/EdmondsBlossomAlgorithm.java)
@@ -171,9 +177,9 @@
             - 📄 [MatrixGraphs](src/main/java/com/thealgorithms/datastructures/graphs/MatrixGraphs.java)
             - 📄 [PrimMST](src/main/java/com/thealgorithms/datastructures/graphs/PrimMST.java)
             - 📄 [TarjansAlgorithm](src/main/java/com/thealgorithms/datastructures/graphs/TarjansAlgorithm.java)
+            - 📄 [TwoSat](src/main/java/com/thealgorithms/datastructures/graphs/TwoSat.java)
             - 📄 [UndirectedAdjacencyListGraph](src/main/java/com/thealgorithms/datastructures/graphs/UndirectedAdjacencyListGraph.java)
             - 📄 [WelshPowell](src/main/java/com/thealgorithms/datastructures/graphs/WelshPowell.java)
-            - 📄 [TwoSat](src/main/java/com/thealgorithms/datastructures/graphs/TwoSat.java)
           - 📁 **hashmap**
             - 📁 **hashing**
               - 📄 [GenericHashMapUsingArray](src/main/java/com/thealgorithms/datastructures/hashmap/hashing/GenericHashMapUsingArray.java)
@@ -200,6 +206,7 @@
             - 📄 [MinPriorityQueue](src/main/java/com/thealgorithms/datastructures/heaps/MinPriorityQueue.java)
           - 📁 **lists**
             - 📄 [CircleLinkedList](src/main/java/com/thealgorithms/datastructures/lists/CircleLinkedList.java)
+            - 📄 [CircularDoublyLinkedList](src/main/java/com/thealgorithms/datastructures/lists/CircularDoublyLinkedList.java)
             - 📄 [CountSinglyLinkedListRecursion](src/main/java/com/thealgorithms/datastructures/lists/CountSinglyLinkedListRecursion.java)
             - 📄 [CreateAndDetectLoop](src/main/java/com/thealgorithms/datastructures/lists/CreateAndDetectLoop.java)
             - 📄 [CursorLinkedList](src/main/java/com/thealgorithms/datastructures/lists/CursorLinkedList.java)
@@ -300,6 +307,7 @@
           - 📄 [ClimbingStairs](src/main/java/com/thealgorithms/dynamicprogramming/ClimbingStairs.java)
           - 📄 [CoinChange](src/main/java/com/thealgorithms/dynamicprogramming/CoinChange.java)
           - 📄 [CountFriendsPairing](src/main/java/com/thealgorithms/dynamicprogramming/CountFriendsPairing.java)
+          - 📄 [DamerauLevenshteinDistance](src/main/java/com/thealgorithms/dynamicprogramming/DamerauLevenshteinDistance.java)
           - 📄 [DiceThrow](src/main/java/com/thealgorithms/dynamicprogramming/DiceThrow.java)
           - 📄 [EditDistance](src/main/java/com/thealgorithms/dynamicprogramming/EditDistance.java)
           - 📄 [EggDropping](src/main/java/com/thealgorithms/dynamicprogramming/EggDropping.java)
@@ -320,9 +328,11 @@
           - 📄 [LongestValidParentheses](src/main/java/com/thealgorithms/dynamicprogramming/LongestValidParentheses.java)
           - 📄 [MatrixChainMultiplication](src/main/java/com/thealgorithms/dynamicprogramming/MatrixChainMultiplication.java)
           - 📄 [MatrixChainRecursiveTopDownMemoisation](src/main/java/com/thealgorithms/dynamicprogramming/MatrixChainRecursiveTopDownMemoisation.java)
+          - 📄 [MaximumProductSubarray](src/main/java/com/thealgorithms/dynamicprogramming/MaximumProductSubarray.java)
           - 📄 [MaximumSumOfNonAdjacentElements](src/main/java/com/thealgorithms/dynamicprogramming/MaximumSumOfNonAdjacentElements.java)
           - 📄 [MinimumPathSum](src/main/java/com/thealgorithms/dynamicprogramming/MinimumPathSum.java)
           - 📄 [MinimumSumPartition](src/main/java/com/thealgorithms/dynamicprogramming/MinimumSumPartition.java)
+          - 📄 [NeedlemanWunsch](src/main/java/com/thealgorithms/dynamicprogramming/NeedlemanWunsch.java)
           - 📄 [NewManShanksPrime](src/main/java/com/thealgorithms/dynamicprogramming/NewManShanksPrime.java)
           - 📄 [OptimalJobScheduling](src/main/java/com/thealgorithms/dynamicprogramming/OptimalJobScheduling.java)
           - 📄 [PalindromicPartitioning](src/main/java/com/thealgorithms/dynamicprogramming/PalindromicPartitioning.java)
@@ -330,6 +340,7 @@
           - 📄 [RegexMatching](src/main/java/com/thealgorithms/dynamicprogramming/RegexMatching.java)
           - 📄 [RodCutting](src/main/java/com/thealgorithms/dynamicprogramming/RodCutting.java)
           - 📄 [ShortestCommonSupersequenceLength](src/main/java/com/thealgorithms/dynamicprogramming/ShortestCommonSupersequenceLength.java)
+          - 📄 [SmithWaterman](src/main/java/com/thealgorithms/dynamicprogramming/SmithWaterman.java)
           - 📄 [SubsetCount](src/main/java/com/thealgorithms/dynamicprogramming/SubsetCount.java)
           - 📄 [SubsetSum](src/main/java/com/thealgorithms/dynamicprogramming/SubsetSum.java)
           - 📄 [SubsetSumSpaceOptimized](src/main/java/com/thealgorithms/dynamicprogramming/SubsetSumSpaceOptimized.java)
@@ -344,15 +355,20 @@
           - 📄 [BresenhamLine](src/main/java/com/thealgorithms/geometry/BresenhamLine.java)
           - 📄 [ConvexHull](src/main/java/com/thealgorithms/geometry/ConvexHull.java)
           - 📄 [GrahamScan](src/main/java/com/thealgorithms/geometry/GrahamScan.java)
+          - 📄 [Haversine](src/main/java/com/thealgorithms/geometry/Haversine.java)
           - 📄 [MidpointCircle](src/main/java/com/thealgorithms/geometry/MidpointCircle.java)
           - 📄 [MidpointEllipse](src/main/java/com/thealgorithms/geometry/MidpointEllipse.java)
           - 📄 [Point](src/main/java/com/thealgorithms/geometry/Point.java)
+          - 📄 [WusLine](src/main/java/com/thealgorithms/geometry/WusLine.java)
         - 📁 **graph**
+          - 📄 [BronKerbosch](src/main/java/com/thealgorithms/graph/BronKerbosch.java)
           - 📄 [ConstrainedShortestPath](src/main/java/com/thealgorithms/graph/ConstrainedShortestPath.java)
+          - 📄 [EdmondsKarp](src/main/java/com/thealgorithms/graph/EdmondsKarp.java)
           - 📄 [HopcroftKarp](src/main/java/com/thealgorithms/graph/HopcroftKarp.java)
           - 📄 [PredecessorConstrainedDfs](src/main/java/com/thealgorithms/graph/PredecessorConstrainedDfs.java)
           - 📄 [StronglyConnectedComponentOptimized](src/main/java/com/thealgorithms/graph/StronglyConnectedComponentOptimized.java)
           - 📄 [TravelingSalesman](src/main/java/com/thealgorithms/graph/TravelingSalesman.java)
+          - 📄 [ZeroOneBfs](src/main/java/com/thealgorithms/graph/ZeroOneBfs.java)
         - 📁 **greedyalgorithms**
           - 📄 [ActivitySelection](src/main/java/com/thealgorithms/greedyalgorithms/ActivitySelection.java)
           - 📄 [BandwidthAllocation](src/main/java/com/thealgorithms/greedyalgorithms/BandwidthAllocation.java)
@@ -405,6 +421,7 @@
           - 📄 [DistanceFormula](src/main/java/com/thealgorithms/maths/DistanceFormula.java)
           - 📄 [DudeneyNumber](src/main/java/com/thealgorithms/maths/DudeneyNumber.java)
           - 📄 [EulerMethod](src/main/java/com/thealgorithms/maths/EulerMethod.java)
+          - 📄 [EulerPseudoprime](src/main/java/com/thealgorithms/maths/EulerPseudoprime.java)
           - 📄 [EulersFunction](src/main/java/com/thealgorithms/maths/EulersFunction.java)
           - 📄 [FFT](src/main/java/com/thealgorithms/maths/FFT.java)
           - 📄 [FFTBluestein](src/main/java/com/thealgorithms/maths/FFTBluestein.java)
@@ -427,7 +444,9 @@
           - 📄 [GCDRecursion](src/main/java/com/thealgorithms/maths/GCDRecursion.java)
           - 📄 [Gaussian](src/main/java/com/thealgorithms/maths/Gaussian.java)
           - 📄 [GenericRoot](src/main/java/com/thealgorithms/maths/GenericRoot.java)
+          - 📄 [GermainPrimeAndSafePrime](src/main/java/com/thealgorithms/maths/GermainPrimeAndSafePrime.java)
           - 📄 [GoldbachConjecture](src/main/java/com/thealgorithms/maths/GoldbachConjecture.java)
+          - 📄 [HappyNumber](src/main/java/com/thealgorithms/maths/HappyNumber.java)
           - 📄 [HarshadNumber](src/main/java/com/thealgorithms/maths/HarshadNumber.java)
           - 📄 [HeronsFormula](src/main/java/com/thealgorithms/maths/HeronsFormula.java)
           - 📄 [JosephusProblem](src/main/java/com/thealgorithms/maths/JosephusProblem.java)
@@ -451,6 +470,7 @@
           - 📄 [NonRepeatingElement](src/main/java/com/thealgorithms/maths/NonRepeatingElement.java)
           - 📄 [NthUglyNumber](src/main/java/com/thealgorithms/maths/NthUglyNumber.java)
           - 📄 [NumberOfDigits](src/main/java/com/thealgorithms/maths/NumberOfDigits.java)
+          - 📄 [NumberPersistence](src/main/java/com/thealgorithms/maths/NumberPersistence.java)
           - 📄 [PalindromeNumber](src/main/java/com/thealgorithms/maths/PalindromeNumber.java)
           - 📄 [ParseInteger](src/main/java/com/thealgorithms/maths/ParseInteger.java)
           - 📄 [PascalTriangle](src/main/java/com/thealgorithms/maths/PascalTriangle.java)
@@ -458,6 +478,7 @@
           - 📄 [PerfectNumber](src/main/java/com/thealgorithms/maths/PerfectNumber.java)
           - 📄 [PerfectSquare](src/main/java/com/thealgorithms/maths/PerfectSquare.java)
           - 📄 [Perimeter](src/main/java/com/thealgorithms/maths/Perimeter.java)
+          - 📄 [PiApproximation](src/main/java/com/thealgorithms/maths/PiApproximation.java)
           - 📄 [PiNilakantha](src/main/java/com/thealgorithms/maths/PiNilakantha.java)
           - 📄 [PollardRho](src/main/java/com/thealgorithms/maths/PollardRho.java)
           - 📄 [Pow](src/main/java/com/thealgorithms/maths/Pow.java)
@@ -476,6 +497,7 @@
           - 📄 [ReverseNumber](src/main/java/com/thealgorithms/maths/ReverseNumber.java)
           - 📄 [RomanNumeralUtil](src/main/java/com/thealgorithms/maths/RomanNumeralUtil.java)
           - 📄 [SecondMinMax](src/main/java/com/thealgorithms/maths/SecondMinMax.java)
+          - 📄 [SieveOfAtkin](src/main/java/com/thealgorithms/maths/SieveOfAtkin.java)
           - 📄 [SieveOfEratosthenes](src/main/java/com/thealgorithms/maths/SieveOfEratosthenes.java)
           - 📄 [SimpsonIntegration](src/main/java/com/thealgorithms/maths/SimpsonIntegration.java)
           - 📄 [SolovayStrassenPrimalityTest](src/main/java/com/thealgorithms/maths/SolovayStrassenPrimalityTest.java)
@@ -487,6 +509,7 @@
           - 📄 [SumOfArithmeticSeries](src/main/java/com/thealgorithms/maths/SumOfArithmeticSeries.java)
           - 📄 [SumOfDigits](src/main/java/com/thealgorithms/maths/SumOfDigits.java)
           - 📄 [SumOfOddNumbers](src/main/java/com/thealgorithms/maths/SumOfOddNumbers.java)
+          - 📄 [SumOfSquares](src/main/java/com/thealgorithms/maths/SumOfSquares.java)
           - 📄 [SumWithoutArithmeticOperators](src/main/java/com/thealgorithms/maths/SumWithoutArithmeticOperators.java)
           - 📄 [TrinomialTriangle](src/main/java/com/thealgorithms/maths/TrinomialTriangle.java)
           - 📄 [TwinPrime](src/main/java/com/thealgorithms/maths/TwinPrime.java)
@@ -494,6 +517,7 @@
           - 📄 [VampireNumber](src/main/java/com/thealgorithms/maths/VampireNumber.java)
           - 📄 [VectorCrossProduct](src/main/java/com/thealgorithms/maths/VectorCrossProduct.java)
           - 📄 [Volume](src/main/java/com/thealgorithms/maths/Volume.java)
+          - 📄 [ZellersCongruence](src/main/java/com/thealgorithms/maths/ZellersCongruence.java)
         - 📁 **matrix**
           - 📄 [InverseOfMatrix](src/main/java/com/thealgorithms/matrix/InverseOfMatrix.java)
           - 📄 [MatrixMultiplication](src/main/java/com/thealgorithms/matrix/MatrixMultiplication.java)
@@ -539,12 +563,11 @@
           - 📄 [Dijkstra](src/main/java/com/thealgorithms/others/Dijkstra.java)
           - 📄 [FloydTriangle](src/main/java/com/thealgorithms/others/FloydTriangle.java)
           - 📄 [GaussLegendre](src/main/java/com/thealgorithms/others/GaussLegendre.java)
-          - 📄 [HappyNumbersSeq](src/main/java/com/thealgorithms/others/HappyNumbersSeq.java)
           - 📄 [Huffman](src/main/java/com/thealgorithms/others/Huffman.java)
           - 📄 [Implementing_auto_completing_features_using_trie](src/main/java/com/thealgorithms/others/Implementing_auto_completing_features_using_trie.java)
           - 📄 [InsertDeleteInArray](src/main/java/com/thealgorithms/others/InsertDeleteInArray.java)
+          - 📄 [IterativeFloodFill](src/main/java/com/thealgorithms/others/IterativeFloodFill.java)
           - 📄 [KochSnowflake](src/main/java/com/thealgorithms/others/KochSnowflake.java)
-          - 📄 [Krishnamurthy](src/main/java/com/thealgorithms/others/Krishnamurthy.java)
           - 📄 [LineSweep](src/main/java/com/thealgorithms/others/LineSweep.java)
           - 📄 [LinearCongruentialGenerator](src/main/java/com/thealgorithms/others/LinearCongruentialGenerator.java)
           - 📄 [LowestBasePalindrome](src/main/java/com/thealgorithms/others/LowestBasePalindrome.java)
@@ -553,6 +576,7 @@
           - 📄 [MaximumSumOfDistinctSubarraysWithLengthK](src/main/java/com/thealgorithms/others/MaximumSumOfDistinctSubarraysWithLengthK.java)
           - 📄 [MemoryManagementAlgorithms](src/main/java/com/thealgorithms/others/MemoryManagementAlgorithms.java)
           - 📄 [MiniMaxAlgorithm](src/main/java/com/thealgorithms/others/MiniMaxAlgorithm.java)
+          - 📄 [MosAlgorithm](src/main/java/com/thealgorithms/others/MosAlgorithm.java)
           - 📄 [PageRank](src/main/java/com/thealgorithms/others/PageRank.java)
           - 📄 [PasswordGen](src/main/java/com/thealgorithms/others/PasswordGen.java)
           - 📄 [PerlinNoise](src/main/java/com/thealgorithms/others/PerlinNoise.java)
@@ -563,6 +587,8 @@
           - 📄 [Verhoeff](src/main/java/com/thealgorithms/others/Verhoeff.java)
           - 📁 **cn**
             - 📄 [HammingDistance](src/main/java/com/thealgorithms/others/cn/HammingDistance.java)
+        - 📁 **physics**
+          - 📄 [GroundToGroundProjectileMotion](src/main/java/com/thealgorithms/physics/GroundToGroundProjectileMotion.java)
         - 📁 **puzzlesandgames**
           - 📄 [Sudoku](src/main/java/com/thealgorithms/puzzlesandgames/Sudoku.java)
           - 📄 [TowerOfHanoi](src/main/java/com/thealgorithms/puzzlesandgames/TowerOfHanoi.java)
@@ -575,8 +601,10 @@
           - 📄 [RandomizedQuickSort](src/main/java/com/thealgorithms/randomized/RandomizedQuickSort.java)
           - 📄 [ReservoirSampling](src/main/java/com/thealgorithms/randomized/ReservoirSampling.java)
         - 📁 **recursion**
+          - 📄 [DiceThrower](src/main/java/com/thealgorithms/recursion/DiceThrower.java)
           - 📄 [FibonacciSeries](src/main/java/com/thealgorithms/recursion/FibonacciSeries.java)
           - 📄 [GenerateSubsets](src/main/java/com/thealgorithms/recursion/GenerateSubsets.java)
+          - 📄 [SylvesterSequence](src/main/java/com/thealgorithms/recursion/SylvesterSequence.java)
         - 📁 **scheduling**
           - 📄 [AgingScheduling](src/main/java/com/thealgorithms/scheduling/AgingScheduling.java)
           - 📄 [EDFScheduling](src/main/java/com/thealgorithms/scheduling/EDFScheduling.java)
@@ -642,6 +670,7 @@
           - 📄 [MaxSumKSizeSubarray](src/main/java/com/thealgorithms/slidingwindow/MaxSumKSizeSubarray.java)
           - 📄 [MaximumSlidingWindow](src/main/java/com/thealgorithms/slidingwindow/MaximumSlidingWindow.java)
           - 📄 [MinSumKSizeSubarray](src/main/java/com/thealgorithms/slidingwindow/MinSumKSizeSubarray.java)
+          - 📄 [MinimumWindowSubstring](src/main/java/com/thealgorithms/slidingwindow/MinimumWindowSubstring.java)
           - 📄 [ShortestCoprimeSegment](src/main/java/com/thealgorithms/slidingwindow/ShortestCoprimeSegment.java)
         - 📁 **sorts**
           - 📄 [AdaptiveMergeSort](src/main/java/com/thealgorithms/sorts/AdaptiveMergeSort.java)
@@ -720,6 +749,7 @@
         - 📁 **strings**
           - 📄 [AhoCorasick](src/main/java/com/thealgorithms/strings/AhoCorasick.java)
           - 📄 [Alphabetical](src/main/java/com/thealgorithms/strings/Alphabetical.java)
+          - 📄 [AlternativeStringArrange](src/main/java/com/thealgorithms/strings/AlternativeStringArrange.java)
           - 📄 [Anagrams](src/main/java/com/thealgorithms/strings/Anagrams.java)
           - 📄 [CharactersSame](src/main/java/com/thealgorithms/strings/CharactersSame.java)
           - 📄 [CheckVowels](src/main/java/com/thealgorithms/strings/CheckVowels.java)
@@ -727,6 +757,7 @@
           - 📄 [CountWords](src/main/java/com/thealgorithms/strings/CountWords.java)
           - 📄 [HammingDistance](src/main/java/com/thealgorithms/strings/HammingDistance.java)
           - 📄 [HorspoolSearch](src/main/java/com/thealgorithms/strings/HorspoolSearch.java)
+          - 📄 [Isogram](src/main/java/com/thealgorithms/strings/Isogram.java)
           - 📄 [Isomorphic](src/main/java/com/thealgorithms/strings/Isomorphic.java)
           - 📄 [KMP](src/main/java/com/thealgorithms/strings/KMP.java)
           - 📄 [LetterCombinationsOfPhoneNumber](src/main/java/com/thealgorithms/strings/LetterCombinationsOfPhoneNumber.java)
@@ -782,8 +813,10 @@
           - 📄 [BcdConversionTest](src/test/java/com/thealgorithms/bitmanipulation/BcdConversionTest.java)
           - 📄 [BinaryPalindromeCheckTest](src/test/java/com/thealgorithms/bitmanipulation/BinaryPalindromeCheckTest.java)
           - 📄 [BitSwapTest](src/test/java/com/thealgorithms/bitmanipulation/BitSwapTest.java)
+          - 📄 [BitwiseGCDTest](src/test/java/com/thealgorithms/bitmanipulation/BitwiseGCDTest.java)
           - 📄 [BooleanAlgebraGatesTest](src/test/java/com/thealgorithms/bitmanipulation/BooleanAlgebraGatesTest.java)
           - 📄 [ClearLeftmostSetBitTest](src/test/java/com/thealgorithms/bitmanipulation/ClearLeftmostSetBitTest.java)
+          - 📄 [CountBitsFlipTest](src/test/java/com/thealgorithms/bitmanipulation/CountBitsFlipTest.java)
           - 📄 [CountLeadingZerosTest](src/test/java/com/thealgorithms/bitmanipulation/CountLeadingZerosTest.java)
           - 📄 [CountSetBitsTest](src/test/java/com/thealgorithms/bitmanipulation/CountSetBitsTest.java)
           - 📄 [FindNthBitTest](src/test/java/com/thealgorithms/bitmanipulation/FindNthBitTest.java)
@@ -826,6 +859,7 @@
           - 📄 [ECCTest](src/test/java/com/thealgorithms/ciphers/ECCTest.java)
           - 📄 [HillCipherTest](src/test/java/com/thealgorithms/ciphers/HillCipherTest.java)
           - 📄 [MonoAlphabeticTest](src/test/java/com/thealgorithms/ciphers/MonoAlphabeticTest.java)
+          - 📄 [PermutationCipherTest](src/test/java/com/thealgorithms/ciphers/PermutationCipherTest.java)
           - 📄 [PlayfairTest](src/test/java/com/thealgorithms/ciphers/PlayfairTest.java)
           - 📄 [PolybiusTest](src/test/java/com/thealgorithms/ciphers/PolybiusTest.java)
           - 📄 [RSATest](src/test/java/com/thealgorithms/ciphers/RSATest.java)
@@ -845,6 +879,7 @@
           - 📄 [BinaryToDecimalTest](src/test/java/com/thealgorithms/conversions/BinaryToDecimalTest.java)
           - 📄 [BinaryToHexadecimalTest](src/test/java/com/thealgorithms/conversions/BinaryToHexadecimalTest.java)
           - 📄 [BinaryToOctalTest](src/test/java/com/thealgorithms/conversions/BinaryToOctalTest.java)
+          - 📄 [CoordinateConverterTest](src/test/java/com/thealgorithms/conversions/CoordinateConverterTest.java)
           - 📄 [DecimalToAnyBaseTest](src/test/java/com/thealgorithms/conversions/DecimalToAnyBaseTest.java)
           - 📄 [DecimalToBinaryTest](src/test/java/com/thealgorithms/conversions/DecimalToBinaryTest.java)
           - 📄 [DecimalToHexadecimalTest](src/test/java/com/thealgorithms/conversions/DecimalToHexadecimalTest.java)
@@ -864,6 +899,7 @@
           - 📄 [OctalToHexadecimalTest](src/test/java/com/thealgorithms/conversions/OctalToHexadecimalTest.java)
           - 📄 [PhoneticAlphabetConverterTest](src/test/java/com/thealgorithms/conversions/PhoneticAlphabetConverterTest.java)
           - 📄 [RomanToIntegerTest](src/test/java/com/thealgorithms/conversions/RomanToIntegerTest.java)
+          - 📄 [TimeConverterTest](src/test/java/com/thealgorithms/conversions/TimeConverterTest.java)
           - 📄 [TurkishToLatinConversionTest](src/test/java/com/thealgorithms/conversions/TurkishToLatinConversionTest.java)
           - 📄 [UnitConversionsTest](src/test/java/com/thealgorithms/conversions/UnitConversionsTest.java)
           - 📄 [UnitsConverterTest](src/test/java/com/thealgorithms/conversions/UnitsConverterTest.java)
@@ -898,6 +934,7 @@
             - 📄 [AStarTest](src/test/java/com/thealgorithms/datastructures/graphs/AStarTest.java)
             - 📄 [BipartiteGraphDFSTest](src/test/java/com/thealgorithms/datastructures/graphs/BipartiteGraphDFSTest.java)
             - 📄 [BoruvkaAlgorithmTest](src/test/java/com/thealgorithms/datastructures/graphs/BoruvkaAlgorithmTest.java)
+            - 📄 [DialsAlgorithmTest](src/test/java/com/thealgorithms/datastructures/graphs/DialsAlgorithmTest.java)
             - 📄 [DijkstraAlgorithmTest](src/test/java/com/thealgorithms/datastructures/graphs/DijkstraAlgorithmTest.java)
             - 📄 [DijkstraOptimizedAlgorithmTest](src/test/java/com/thealgorithms/datastructures/graphs/DijkstraOptimizedAlgorithmTest.java)
             - 📄 [EdmondsBlossomAlgorithmTest](src/test/java/com/thealgorithms/datastructures/graphs/EdmondsBlossomAlgorithmTest.java)
@@ -911,6 +948,7 @@
             - 📄 [MatrixGraphsTest](src/test/java/com/thealgorithms/datastructures/graphs/MatrixGraphsTest.java)
             - 📄 [PrimMSTTest](src/test/java/com/thealgorithms/datastructures/graphs/PrimMSTTest.java)
             - 📄 [TarjansAlgorithmTest](src/test/java/com/thealgorithms/datastructures/graphs/TarjansAlgorithmTest.java)
+            - 📄 [TwoSatTest](src/test/java/com/thealgorithms/datastructures/graphs/TwoSatTest.java)
             - 📄 [WelshPowellTest](src/test/java/com/thealgorithms/datastructures/graphs/WelshPowellTest.java)
           - 📁 **hashmap**
             - 📁 **hashing**
@@ -935,6 +973,7 @@
             - 📄 [MinPriorityQueueTest](src/test/java/com/thealgorithms/datastructures/heaps/MinPriorityQueueTest.java)
           - 📁 **lists**
             - 📄 [CircleLinkedListTest](src/test/java/com/thealgorithms/datastructures/lists/CircleLinkedListTest.java)
+            - 📄 [CircularDoublyLinkedListTest](src/test/java/com/thealgorithms/datastructures/lists/CircularDoublyLinkedListTest.java)
             - 📄 [CountSinglyLinkedListRecursionTest](src/test/java/com/thealgorithms/datastructures/lists/CountSinglyLinkedListRecursionTest.java)
             - 📄 [CreateAndDetectLoopTest](src/test/java/com/thealgorithms/datastructures/lists/CreateAndDetectLoopTest.java)
             - 📄 [CursorLinkedListTest](src/test/java/com/thealgorithms/datastructures/lists/CursorLinkedListTest.java)
@@ -968,6 +1007,7 @@
             - 📄 [AVLTreeTest](src/test/java/com/thealgorithms/datastructures/trees/AVLTreeTest.java)
             - 📄 [BSTFromSortedArrayTest](src/test/java/com/thealgorithms/datastructures/trees/BSTFromSortedArrayTest.java)
             - 📄 [BSTIterativeTest](src/test/java/com/thealgorithms/datastructures/trees/BSTIterativeTest.java)
+            - 📄 [BSTRecursiveGenericTest](src/test/java/com/thealgorithms/datastructures/trees/BSTRecursiveGenericTest.java)
             - 📄 [BSTRecursiveTest](src/test/java/com/thealgorithms/datastructures/trees/BSTRecursiveTest.java)
             - 📄 [BTreeTest](src/test/java/com/thealgorithms/datastructures/trees/BTreeTest.java)
             - 📄 [BinaryTreeTest](src/test/java/com/thealgorithms/datastructures/trees/BinaryTreeTest.java)
@@ -991,6 +1031,9 @@
             - 📄 [TrieTest](src/test/java/com/thealgorithms/datastructures/trees/TrieTest.java)
             - 📄 [VerticalOrderTraversalTest](src/test/java/com/thealgorithms/datastructures/trees/VerticalOrderTraversalTest.java)
             - 📄 [ZigzagTraversalTest](src/test/java/com/thealgorithms/datastructures/trees/ZigzagTraversalTest.java)
+        - 📁 **devutils**
+          - 📁 **entities**
+            - 📄 [ProcessDetailsTest](src/test/java/com/thealgorithms/devutils/entities/ProcessDetailsTest.java)
         - 📁 **divideandconquer**
           - 📄 [BinaryExponentiationTest](src/test/java/com/thealgorithms/divideandconquer/BinaryExponentiationTest.java)
           - 📄 [ClosestPairTest](src/test/java/com/thealgorithms/divideandconquer/ClosestPairTest.java)
@@ -1011,6 +1054,7 @@
           - 📄 [CoinChangeTest](src/test/java/com/thealgorithms/dynamicprogramming/CoinChangeTest.java)
           - 📄 [CountFriendsPairingTest](src/test/java/com/thealgorithms/dynamicprogramming/CountFriendsPairingTest.java)
           - 📄 [DPTest](src/test/java/com/thealgorithms/dynamicprogramming/DPTest.java)
+          - 📄 [DamerauLevenshteinDistanceTest](src/test/java/com/thealgorithms/dynamicprogramming/DamerauLevenshteinDistanceTest.java)
           - 📄 [EditDistanceTest](src/test/java/com/thealgorithms/dynamicprogramming/EditDistanceTest.java)
           - 📄 [EggDroppingTest](src/test/java/com/thealgorithms/dynamicprogramming/EggDroppingTest.java)
           - 📄 [FibonacciTest](src/test/java/com/thealgorithms/dynamicprogramming/FibonacciTest.java)
@@ -1029,9 +1073,11 @@
           - 📄 [LongestValidParenthesesTest](src/test/java/com/thealgorithms/dynamicprogramming/LongestValidParenthesesTest.java)
           - 📄 [MatrixChainMultiplicationTest](src/test/java/com/thealgorithms/dynamicprogramming/MatrixChainMultiplicationTest.java)
           - 📄 [MatrixChainRecursiveTopDownMemoisationTest](src/test/java/com/thealgorithms/dynamicprogramming/MatrixChainRecursiveTopDownMemoisationTest.java)
+          - 📄 [MaximumProductSubarrayTest](src/test/java/com/thealgorithms/dynamicprogramming/MaximumProductSubarrayTest.java)
           - 📄 [MaximumSumOfNonAdjacentElementsTest](src/test/java/com/thealgorithms/dynamicprogramming/MaximumSumOfNonAdjacentElementsTest.java)
           - 📄 [MinimumPathSumTest](src/test/java/com/thealgorithms/dynamicprogramming/MinimumPathSumTest.java)
           - 📄 [MinimumSumPartitionTest](src/test/java/com/thealgorithms/dynamicprogramming/MinimumSumPartitionTest.java)
+          - 📄 [NeedlemanWunschTest](src/test/java/com/thealgorithms/dynamicprogramming/NeedlemanWunschTest.java)
           - 📄 [NewManShanksPrimeTest](src/test/java/com/thealgorithms/dynamicprogramming/NewManShanksPrimeTest.java)
           - 📄 [OptimalJobSchedulingTest](src/test/java/com/thealgorithms/dynamicprogramming/OptimalJobSchedulingTest.java)
           - 📄 [PalindromicPartitioningTest](src/test/java/com/thealgorithms/dynamicprogramming/PalindromicPartitioningTest.java)
@@ -1039,6 +1085,7 @@
           - 📄 [RegexMatchingTest](src/test/java/com/thealgorithms/dynamicprogramming/RegexMatchingTest.java)
           - 📄 [RodCuttingTest](src/test/java/com/thealgorithms/dynamicprogramming/RodCuttingTest.java)
           - 📄 [ShortestCommonSupersequenceLengthTest](src/test/java/com/thealgorithms/dynamicprogramming/ShortestCommonSupersequenceLengthTest.java)
+          - 📄 [SmithWatermanTest](src/test/java/com/thealgorithms/dynamicprogramming/SmithWatermanTest.java)
           - 📄 [SubsetCountTest](src/test/java/com/thealgorithms/dynamicprogramming/SubsetCountTest.java)
           - 📄 [SubsetSumSpaceOptimizedTest](src/test/java/com/thealgorithms/dynamicprogramming/SubsetSumSpaceOptimizedTest.java)
           - 📄 [SubsetSumTest](src/test/java/com/thealgorithms/dynamicprogramming/SubsetSumTest.java)
@@ -1053,15 +1100,20 @@
           - 📄 [BresenhamLineTest](src/test/java/com/thealgorithms/geometry/BresenhamLineTest.java)
           - 📄 [ConvexHullTest](src/test/java/com/thealgorithms/geometry/ConvexHullTest.java)
           - 📄 [GrahamScanTest](src/test/java/com/thealgorithms/geometry/GrahamScanTest.java)
+          - 📄 [HaversineTest](src/test/java/com/thealgorithms/geometry/HaversineTest.java)
           - 📄 [MidpointCircleTest](src/test/java/com/thealgorithms/geometry/MidpointCircleTest.java)
           - 📄 [MidpointEllipseTest](src/test/java/com/thealgorithms/geometry/MidpointEllipseTest.java)
           - 📄 [PointTest](src/test/java/com/thealgorithms/geometry/PointTest.java)
+          - 📄 [WusLineTest](src/test/java/com/thealgorithms/geometry/WusLineTest.java)
         - 📁 **graph**
+          - 📄 [BronKerboschTest](src/test/java/com/thealgorithms/graph/BronKerboschTest.java)
           - 📄 [ConstrainedShortestPathTest](src/test/java/com/thealgorithms/graph/ConstrainedShortestPathTest.java)
+          - 📄 [EdmondsKarpTest](src/test/java/com/thealgorithms/graph/EdmondsKarpTest.java)
           - 📄 [HopcroftKarpTest](src/test/java/com/thealgorithms/graph/HopcroftKarpTest.java)
           - 📄 [PredecessorConstrainedDfsTest](src/test/java/com/thealgorithms/graph/PredecessorConstrainedDfsTest.java)
           - 📄 [StronglyConnectedComponentOptimizedTest](src/test/java/com/thealgorithms/graph/StronglyConnectedComponentOptimizedTest.java)
           - 📄 [TravelingSalesmanTest](src/test/java/com/thealgorithms/graph/TravelingSalesmanTest.java)
+          - 📄 [ZeroOneBfsTest](src/test/java/com/thealgorithms/graph/ZeroOneBfsTest.java)
         - 📁 **greedyalgorithms**
           - 📄 [ActivitySelectionTest](src/test/java/com/thealgorithms/greedyalgorithms/ActivitySelectionTest.java)
           - 📄 [BandwidthAllocationTest](src/test/java/com/thealgorithms/greedyalgorithms/BandwidthAllocationTest.java)
@@ -1110,6 +1162,7 @@
           - 📄 [DistanceFormulaTest](src/test/java/com/thealgorithms/maths/DistanceFormulaTest.java)
           - 📄 [DudeneyNumberTest](src/test/java/com/thealgorithms/maths/DudeneyNumberTest.java)
           - 📄 [EulerMethodTest](src/test/java/com/thealgorithms/maths/EulerMethodTest.java)
+          - 📄 [EulerPseudoprimeTest](src/test/java/com/thealgorithms/maths/EulerPseudoprimeTest.java)
           - 📄 [EulersFunctionTest](src/test/java/com/thealgorithms/maths/EulersFunctionTest.java)
           - 📄 [FFTTest](src/test/java/com/thealgorithms/maths/FFTTest.java)
           - 📄 [FactorialRecursionTest](src/test/java/com/thealgorithms/maths/FactorialRecursionTest.java)
@@ -1131,12 +1184,15 @@
           - 📄 [GCDTest](src/test/java/com/thealgorithms/maths/GCDTest.java)
           - 📄 [GaussianTest](src/test/java/com/thealgorithms/maths/GaussianTest.java)
           - 📄 [GenericRootTest](src/test/java/com/thealgorithms/maths/GenericRootTest.java)
+          - 📄 [GermainPrimeAndSafePrimeTest](src/test/java/com/thealgorithms/maths/GermainPrimeAndSafePrimeTest.java)
           - 📄 [GoldbachConjectureTest](src/test/java/com/thealgorithms/maths/GoldbachConjectureTest.java)
+          - 📄 [HappyNumberTest](src/test/java/com/thealgorithms/maths/HappyNumberTest.java)
           - 📄 [HarshadNumberTest](src/test/java/com/thealgorithms/maths/HarshadNumberTest.java)
           - 📄 [HeronsFormulaTest](src/test/java/com/thealgorithms/maths/HeronsFormulaTest.java)
           - 📄 [JosephusProblemTest](src/test/java/com/thealgorithms/maths/JosephusProblemTest.java)
           - 📄 [KaprekarNumbersTest](src/test/java/com/thealgorithms/maths/KaprekarNumbersTest.java)
           - 📄 [KaratsubaMultiplicationTest](src/test/java/com/thealgorithms/maths/KaratsubaMultiplicationTest.java)
+          - 📄 [KeithNumberTest](src/test/java/com/thealgorithms/maths/KeithNumberTest.java)
           - 📄 [KrishnamurthyNumberTest](src/test/java/com/thealgorithms/maths/KrishnamurthyNumberTest.java)
           - 📄 [LeastCommonMultipleTest](src/test/java/com/thealgorithms/maths/LeastCommonMultipleTest.java)
           - 📄 [LeonardoNumberTest](src/test/java/com/thealgorithms/maths/LeonardoNumberTest.java)
@@ -1151,6 +1207,7 @@
           - 📄 [NonRepeatingElementTest](src/test/java/com/thealgorithms/maths/NonRepeatingElementTest.java)
           - 📄 [NthUglyNumberTest](src/test/java/com/thealgorithms/maths/NthUglyNumberTest.java)
           - 📄 [NumberOfDigitsTest](src/test/java/com/thealgorithms/maths/NumberOfDigitsTest.java)
+          - 📄 [NumberPersistenceTest](src/test/java/com/thealgorithms/maths/NumberPersistenceTest.java)
           - 📄 [PalindromeNumberTest](src/test/java/com/thealgorithms/maths/PalindromeNumberTest.java)
           - 📄 [ParseIntegerTest](src/test/java/com/thealgorithms/maths/ParseIntegerTest.java)
           - 📄 [PascalTriangleTest](src/test/java/com/thealgorithms/maths/PascalTriangleTest.java)
@@ -1158,6 +1215,7 @@
           - 📄 [PerfectNumberTest](src/test/java/com/thealgorithms/maths/PerfectNumberTest.java)
           - 📄 [PerfectSquareTest](src/test/java/com/thealgorithms/maths/PerfectSquareTest.java)
           - 📄 [PerimeterTest](src/test/java/com/thealgorithms/maths/PerimeterTest.java)
+          - 📄 [PiApproximationTest](src/test/java/com/thealgorithms/maths/PiApproximationTest.java)
           - 📄 [PollardRhoTest](src/test/java/com/thealgorithms/maths/PollardRhoTest.java)
           - 📄 [PowTest](src/test/java/com/thealgorithms/maths/PowTest.java)
           - 📄 [PowerOfTwoOrNotTest](src/test/java/com/thealgorithms/maths/PowerOfTwoOrNotTest.java)
@@ -1167,6 +1225,7 @@
           - 📄 [QuadraticEquationSolverTest](src/test/java/com/thealgorithms/maths/QuadraticEquationSolverTest.java)
           - 📄 [ReverseNumberTest](src/test/java/com/thealgorithms/maths/ReverseNumberTest.java)
           - 📄 [SecondMinMaxTest](src/test/java/com/thealgorithms/maths/SecondMinMaxTest.java)
+          - 📄 [SieveOfAtkinTest](src/test/java/com/thealgorithms/maths/SieveOfAtkinTest.java)
           - 📄 [SieveOfEratosthenesTest](src/test/java/com/thealgorithms/maths/SieveOfEratosthenesTest.java)
           - 📄 [SolovayStrassenPrimalityTestTest](src/test/java/com/thealgorithms/maths/SolovayStrassenPrimalityTestTest.java)
           - 📄 [SquareFreeIntegerTest](src/test/java/com/thealgorithms/maths/SquareFreeIntegerTest.java)
@@ -1178,12 +1237,14 @@
           - 📄 [SumOfArithmeticSeriesTest](src/test/java/com/thealgorithms/maths/SumOfArithmeticSeriesTest.java)
           - 📄 [SumOfDigitsTest](src/test/java/com/thealgorithms/maths/SumOfDigitsTest.java)
           - 📄 [SumOfOddNumbersTest](src/test/java/com/thealgorithms/maths/SumOfOddNumbersTest.java)
+          - 📄 [SumOfSquaresTest](src/test/java/com/thealgorithms/maths/SumOfSquaresTest.java)
           - 📄 [SumWithoutArithmeticOperatorsTest](src/test/java/com/thealgorithms/maths/SumWithoutArithmeticOperatorsTest.java)
           - 📄 [TestArmstrong](src/test/java/com/thealgorithms/maths/TestArmstrong.java)
           - 📄 [TwinPrimeTest](src/test/java/com/thealgorithms/maths/TwinPrimeTest.java)
           - 📄 [UniformNumbersTest](src/test/java/com/thealgorithms/maths/UniformNumbersTest.java)
           - 📄 [VampireNumberTest](src/test/java/com/thealgorithms/maths/VampireNumberTest.java)
           - 📄 [VolumeTest](src/test/java/com/thealgorithms/maths/VolumeTest.java)
+          - 📄 [ZellersCongruenceTest](src/test/java/com/thealgorithms/maths/ZellersCongruenceTest.java)
           - 📁 **prime**
             - 📄 [LiouvilleLambdaFunctionTest](src/test/java/com/thealgorithms/maths/prime/LiouvilleLambdaFunctionTest.java)
             - 📄 [MillerRabinPrimalityCheckTest](src/test/java/com/thealgorithms/maths/prime/MillerRabinPrimalityCheckTest.java)
@@ -1223,14 +1284,21 @@
           - 📄 [CountFriendsPairingTest](src/test/java/com/thealgorithms/others/CountFriendsPairingTest.java)
           - 📄 [FirstFitCPUTest](src/test/java/com/thealgorithms/others/FirstFitCPUTest.java)
           - 📄 [FloydTriangleTest](src/test/java/com/thealgorithms/others/FloydTriangleTest.java)
+          - 📄 [HuffmanTest](src/test/java/com/thealgorithms/others/HuffmanTest.java)
+          - 📄 [InsertDeleteInArrayTest](src/test/java/com/thealgorithms/others/InsertDeleteInArrayTest.java)
+          - 📄 [IterativeFloodFillTest](src/test/java/com/thealgorithms/others/IterativeFloodFillTest.java)
           - 📄 [KadaneAlogrithmTest](src/test/java/com/thealgorithms/others/KadaneAlogrithmTest.java)
           - 📄 [LineSweepTest](src/test/java/com/thealgorithms/others/LineSweepTest.java)
           - 📄 [LinkListSortTest](src/test/java/com/thealgorithms/others/LinkListSortTest.java)
           - 📄 [LowestBasePalindromeTest](src/test/java/com/thealgorithms/others/LowestBasePalindromeTest.java)
           - 📄 [MaximumSumOfDistinctSubarraysWithLengthKTest](src/test/java/com/thealgorithms/others/MaximumSumOfDistinctSubarraysWithLengthKTest.java)
+          - 📄 [MiniMaxAlgorithmTest](src/test/java/com/thealgorithms/others/MiniMaxAlgorithmTest.java)
+          - 📄 [MosAlgorithmTest](src/test/java/com/thealgorithms/others/MosAlgorithmTest.java)
           - 📄 [NewManShanksPrimeTest](src/test/java/com/thealgorithms/others/NewManShanksPrimeTest.java)
           - 📄 [NextFitTest](src/test/java/com/thealgorithms/others/NextFitTest.java)
+          - 📄 [PageRankTest](src/test/java/com/thealgorithms/others/PageRankTest.java)
           - 📄 [PasswordGenTest](src/test/java/com/thealgorithms/others/PasswordGenTest.java)
+          - 📄 [PerlinNoiseTest](src/test/java/com/thealgorithms/others/PerlinNoiseTest.java)
           - 📄 [QueueUsingTwoStacksTest](src/test/java/com/thealgorithms/others/QueueUsingTwoStacksTest.java)
           - 📄 [SkylineProblemTest](src/test/java/com/thealgorithms/others/SkylineProblemTest.java)
           - 📄 [TestPrintMatrixInSpiralOrder](src/test/java/com/thealgorithms/others/TestPrintMatrixInSpiralOrder.java)
@@ -1238,6 +1306,8 @@
           - 📄 [WorstFitCPUTest](src/test/java/com/thealgorithms/others/WorstFitCPUTest.java)
           - 📁 **cn**
             - 📄 [HammingDistanceTest](src/test/java/com/thealgorithms/others/cn/HammingDistanceTest.java)
+        - 📁 **physics**
+          - 📄 [GroundToGroundProjectileMotionTest](src/test/java/com/thealgorithms/physics/GroundToGroundProjectileMotionTest.java)
         - 📁 **puzzlesandgames**
           - 📄 [SudokuTest](src/test/java/com/thealgorithms/puzzlesandgames/SudokuTest.java)
           - 📄 [TowerOfHanoiTest](src/test/java/com/thealgorithms/puzzlesandgames/TowerOfHanoiTest.java)
@@ -1250,8 +1320,10 @@
           - 📄 [RandomizedQuickSortTest](src/test/java/com/thealgorithms/randomized/RandomizedQuickSortTest.java)
           - 📄 [ReservoirSamplingTest](src/test/java/com/thealgorithms/randomized/ReservoirSamplingTest.java)
         - 📁 **recursion**
+          - 📄 [DiceThrowerTest](src/test/java/com/thealgorithms/recursion/DiceThrowerTest.java)
           - 📄 [FibonacciSeriesTest](src/test/java/com/thealgorithms/recursion/FibonacciSeriesTest.java)
           - 📄 [GenerateSubsetsTest](src/test/java/com/thealgorithms/recursion/GenerateSubsetsTest.java)
+          - 📄 [SylvesterSequenceTest](src/test/java/com/thealgorithms/recursion/SylvesterSequenceTest.java)
         - 📁 **scheduling**
           - 📄 [AgingSchedulingTest](src/test/java/com/thealgorithms/scheduling/AgingSchedulingTest.java)
           - 📄 [EDFSchedulingTest](src/test/java/com/thealgorithms/scheduling/EDFSchedulingTest.java)
@@ -1318,6 +1390,7 @@
           - 📄 [MaxSumKSizeSubarrayTest](src/test/java/com/thealgorithms/slidingwindow/MaxSumKSizeSubarrayTest.java)
           - 📄 [MaximumSlidingWindowTest](src/test/java/com/thealgorithms/slidingwindow/MaximumSlidingWindowTest.java)
           - 📄 [MinSumKSizeSubarrayTest](src/test/java/com/thealgorithms/slidingwindow/MinSumKSizeSubarrayTest.java)
+          - 📄 [MinimumWindowSubstringTest](src/test/java/com/thealgorithms/slidingwindow/MinimumWindowSubstringTest.java)
           - 📄 [ShortestCoprimeSegmentTest](src/test/java/com/thealgorithms/slidingwindow/ShortestCoprimeSegmentTest.java)
         - 📁 **sorts**
           - 📄 [AdaptiveMergeSortTest](src/test/java/com/thealgorithms/sorts/AdaptiveMergeSortTest.java)
@@ -1394,6 +1467,7 @@
         - 📁 **strings**
           - 📄 [AhoCorasickTest](src/test/java/com/thealgorithms/strings/AhoCorasickTest.java)
           - 📄 [AlphabeticalTest](src/test/java/com/thealgorithms/strings/AlphabeticalTest.java)
+          - 📄 [AlternativeStringArrangeTest](src/test/java/com/thealgorithms/strings/AlternativeStringArrangeTest.java)
           - 📄 [AnagramsTest](src/test/java/com/thealgorithms/strings/AnagramsTest.java)
           - 📄 [CharactersSameTest](src/test/java/com/thealgorithms/strings/CharactersSameTest.java)
           - 📄 [CheckVowelsTest](src/test/java/com/thealgorithms/strings/CheckVowelsTest.java)
@@ -1401,6 +1475,7 @@
           - 📄 [CountWordsTest](src/test/java/com/thealgorithms/strings/CountWordsTest.java)
           - 📄 [HammingDistanceTest](src/test/java/com/thealgorithms/strings/HammingDistanceTest.java)
           - 📄 [HorspoolSearchTest](src/test/java/com/thealgorithms/strings/HorspoolSearchTest.java)
+          - 📄 [IsogramTest](src/test/java/com/thealgorithms/strings/IsogramTest.java)
           - 📄 [IsomorphicTest](src/test/java/com/thealgorithms/strings/IsomorphicTest.java)
           - 📄 [LetterCombinationsOfPhoneNumberTest](src/test/java/com/thealgorithms/strings/LetterCombinationsOfPhoneNumberTest.java)
           - 📄 [LongestCommonPrefixTest](src/test/java/com/thealgorithms/strings/LongestCommonPrefixTest.java)
diff --git a/DeleteMiddleNode.md b/DeleteMiddleNode.md
new file mode 100644
index 000000000000..773cf9a8a307
--- /dev/null
+++ b/DeleteMiddleNode.md
@@ -0,0 +1,40 @@
+package com.thealgorithms.linkedlist;
+
+public class DeleteMiddleNode {
+
+    public static ListNode deleteMiddle(ListNode head) {
+        if (head == null || head.next == null) return null;
+
+        ListNode slow = head, fast = head, prev = null;
+        while (fast != null && fast.next != null) {
+            prev = slow;
+            slow = slow.next;
+            fast = fast.next.next;
+        }
+        prev.next = slow.next; // remove middle node
+        return head;
+    }
+
+    public static void printList(ListNode head) {
+        while (head != null) {
+            System.out.print(head.val + " -> ");
+            head = head.next;
+        }
+        System.out.println("null");
+    }
+
+    public static void main(String[] args) {
+        ListNode head = new ListNode(1);
+        head.next = new ListNode(2);
+        head.next.next = new ListNode(3);
+        head.next.next.next = new ListNode(4);
+        head.next.next.next.next = new ListNode(5);
+
+        System.out.print("Original list: ");
+        printList(head);
+
+        head = deleteMiddle(head);
+        System.out.print("After deleting middle: ");
+        printList(head);
+    }
+}
diff --git a/DetectCycleInLL.md b/DetectCycleInLL.md
new file mode 100644
index 000000000000..30707467df2d
--- /dev/null
+++ b/DetectCycleInLL.md
@@ -0,0 +1,32 @@
+package com.thealgorithms.linkedlist;
+
+class ListNode {
+    int val;
+    ListNode next;
+    ListNode(int val) { this.val = val; this.next = null; }
+}
+
+public class DetectCycle {
+
+    public static boolean hasCycle(ListNode head) {
+        ListNode slow = head, fast = head;
+        while (fast != null && fast.next != null) {
+            slow = slow.next;
+            fast = fast.next.next;
+            if (slow == fast) {
+                return true; // cycle detected
+            }
+        }
+        return false; // no cycle
+    }
+
+    public static void main(String[] args) {
+        ListNode head = new ListNode(3);
+        head.next = new ListNode(2);
+        head.next.next = new ListNode(0);
+        head.next.next.next = new ListNode(-4);
+        head.next.next.next.next = head.next; // create a cycle
+
+        System.out.println("Cycle exists: " + hasCycle(head));
+    }
+}
diff --git a/FindMiddleNode.md b/FindMiddleNode.md
new file mode 100644
index 000000000000..d02c248f4d68
--- /dev/null
+++ b/FindMiddleNode.md
@@ -0,0 +1,24 @@
+package com.thealgorithms.linkedlist;
+
+public class FindMiddleNode {
+
+    public static ListNode findMiddle(ListNode head) {
+        ListNode slow = head, fast = head;
+        while (fast != null && fast.next != null) {
+            slow = slow.next;
+            fast = fast.next.next;
+        }
+        return slow; // middle node
+    }
+
+    public static void main(String[] args) {
+        ListNode head = new ListNode(1);
+        head.next = new ListNode(2);
+        head.next.next = new ListNode(3);
+        head.next.next.next = new ListNode(4);
+        head.next.next.next.next = new ListNode(5);
+
+        ListNode middle = findMiddle(head);
+        System.out.println("Middle node value: " + middle.val);
+    }
+}
diff --git a/LinkedList.md b/LinkedList.md
new file mode 100644
index 000000000000..e69de29bb2d1
diff --git a/Sort_0s_1s_2s.md b/Sort_0s_1s_2s.md
new file mode 100644
index 000000000000..00b39db48063
--- /dev/null
+++ b/Sort_0s_1s_2s.md
@@ -0,0 +1,35 @@
+package com.thealgorithms.linkedlist;
+
+import java.util.Arrays;
+
+public class Sort012 {
+
+    public static void sortColors(int[] nums) {
+        int low = 0, mid = 0, high = nums.length - 1;
+
+        while (mid <= high) {
+            switch (nums[mid]) {
+                case 0 -> {
+                    int temp = nums[low];
+                    nums[low] = nums[mid];
+                    nums[mid] = temp;
+                    low++;
+                    mid++;
+                }
+                case 1 -> mid++;
+                case 2 -> {
+                    int temp = nums[mid];
+                    nums[mid] = nums[high];
+                    nums[high] = temp;
+                    high--;
+                }
+            }
+        }
+    }
+
+    public static void main(String[] args) {
+        int[] nums = {2, 0, 2, 1, 1, 0};
+        sortColors(nums);
+        System.out.println(Arrays.toString(nums));
+    }
+}