Update DIRECTORY.md

Author: alxkm

DIRECTORY.md

@@ -93,6 +93,8 @@
             - 📄 [LFSR](src/main/java/com/thealgorithms/ciphers/a5/LFSR.java)
             - 📄 [Utils](src/main/java/com/thealgorithms/ciphers/a5/Utils.java)
         - 📁 **compression**
+          - 📄 [ArithmeticCoding](src/main/java/com/thealgorithms/compression/ArithmeticCoding.java)
+          - 📄 [LZW](src/main/java/com/thealgorithms/compression/LZW.java)
           - 📄 [RunLengthEncoding](src/main/java/com/thealgorithms/compression/RunLengthEncoding.java)
           - 📄 [ShannonFano](src/main/java/com/thealgorithms/compression/ShannonFano.java)
         - 📁 **conversions**
@@ -359,6 +361,7 @@
         - 📁 **geometry**
           - 📄 [BresenhamLine](src/main/java/com/thealgorithms/geometry/BresenhamLine.java)
           - 📄 [ConvexHull](src/main/java/com/thealgorithms/geometry/ConvexHull.java)
+          - 📄 [DDALine](src/main/java/com/thealgorithms/geometry/DDALine.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)
@@ -371,6 +374,7 @@
           - 📄 [Dinic](src/main/java/com/thealgorithms/graph/Dinic.java)
           - 📄 [Edmonds](src/main/java/com/thealgorithms/graph/Edmonds.java)
           - 📄 [EdmondsKarp](src/main/java/com/thealgorithms/graph/EdmondsKarp.java)
+          - 📄 [HierholzerEulerianPath](src/main/java/com/thealgorithms/graph/HierholzerEulerianPath.java)
           - 📄 [HopcroftKarp](src/main/java/com/thealgorithms/graph/HopcroftKarp.java)
           - 📄 [HungarianAlgorithm](src/main/java/com/thealgorithms/graph/HungarianAlgorithm.java)
           - 📄 [PredecessorConstrainedDfs](src/main/java/com/thealgorithms/graph/PredecessorConstrainedDfs.java)
@@ -598,7 +602,10 @@
           - 📁 **cn**
             - 📄 [HammingDistance](src/main/java/com/thealgorithms/others/cn/HammingDistance.java)
         - 📁 **physics**
+          - 📄 [DampedOscillator](src/main/java/com/thealgorithms/physics/DampedOscillator.java)
+          - 📄 [ElasticCollision2D](src/main/java/com/thealgorithms/physics/ElasticCollision2D.java)
           - 📄 [GroundToGroundProjectileMotion](src/main/java/com/thealgorithms/physics/GroundToGroundProjectileMotion.java)
+          - 📄 [SimplePendulumRK4](src/main/java/com/thealgorithms/physics/SimplePendulumRK4.java)
         - 📁 **puzzlesandgames**
           - 📄 [Sudoku](src/main/java/com/thealgorithms/puzzlesandgames/Sudoku.java)
           - 📄 [TowerOfHanoi](src/main/java/com/thealgorithms/puzzlesandgames/TowerOfHanoi.java)
@@ -883,6 +890,8 @@
             - 📄 [A5KeyStreamGeneratorTest](src/test/java/com/thealgorithms/ciphers/a5/A5KeyStreamGeneratorTest.java)
             - 📄 [LFSRTest](src/test/java/com/thealgorithms/ciphers/a5/LFSRTest.java)
         - 📁 **compression**
+          - 📄 [ArithmeticCodingTest](src/test/java/com/thealgorithms/compression/ArithmeticCodingTest.java)
+          - 📄 [LZWTest](src/test/java/com/thealgorithms/compression/LZWTest.java)
           - 📄 [RunLengthEncodingTest](src/test/java/com/thealgorithms/compression/RunLengthEncodingTest.java)
           - 📄 [ShannonFanoTest](src/test/java/com/thealgorithms/compression/ShannonFanoTest.java)
         - 📁 **conversions**
@@ -1115,6 +1124,7 @@
         - 📁 **geometry**
           - 📄 [BresenhamLineTest](src/test/java/com/thealgorithms/geometry/BresenhamLineTest.java)
           - 📄 [ConvexHullTest](src/test/java/com/thealgorithms/geometry/ConvexHullTest.java)
+          - 📄 [DDALineTest](src/test/java/com/thealgorithms/geometry/DDALineTest.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)
@@ -1127,7 +1137,9 @@
           - 📄 [DinicTest](src/test/java/com/thealgorithms/graph/DinicTest.java)
           - 📄 [EdmondsKarpTest](src/test/java/com/thealgorithms/graph/EdmondsKarpTest.java)
           - 📄 [EdmondsTest](src/test/java/com/thealgorithms/graph/EdmondsTest.java)
+          - 📄 [HierholzerEulerianPathTest](src/test/java/com/thealgorithms/graph/HierholzerEulerianPathTest.java)
           - 📄 [HopcroftKarpTest](src/test/java/com/thealgorithms/graph/HopcroftKarpTest.java)
+          - 📄 [HungarianAlgorithmTest](src/test/java/com/thealgorithms/graph/HungarianAlgorithmTest.java)
           - 📄 [PredecessorConstrainedDfsTest](src/test/java/com/thealgorithms/graph/PredecessorConstrainedDfsTest.java)
           - 📄 [PushRelabelTest](src/test/java/com/thealgorithms/graph/PushRelabelTest.java)
           - 📄 [StronglyConnectedComponentOptimizedTest](src/test/java/com/thealgorithms/graph/StronglyConnectedComponentOptimizedTest.java)
@@ -1328,7 +1340,10 @@
           - 📁 **cn**
             - 📄 [HammingDistanceTest](src/test/java/com/thealgorithms/others/cn/HammingDistanceTest.java)
         - 📁 **physics**
+          - 📄 [DampedOscillatorTest](src/test/java/com/thealgorithms/physics/DampedOscillatorTest.java)
+          - 📄 [ElasticCollision2DTest](src/test/java/com/thealgorithms/physics/ElasticCollision2DTest.java)
           - 📄 [GroundToGroundProjectileMotionTest](src/test/java/com/thealgorithms/physics/GroundToGroundProjectileMotionTest.java)
+          - 📄 [SimplePendulumRK4Test](src/test/java/com/thealgorithms/physics/SimplePendulumRK4Test.java)
         - 📁 **puzzlesandgames**
           - 📄 [SudokuTest](src/test/java/com/thealgorithms/puzzlesandgames/SudokuTest.java)
           - 📄 [TowerOfHanoiTest](src/test/java/com/thealgorithms/puzzlesandgames/TowerOfHanoiTest.java)