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2 classes
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/test/java/com/thealgorithms/others/QueueUsingTwoStacksTest.java
src/test/java/com/thealgorithms/others/QueueUsingTwoStacksTest.java
package com.thealgorithms.others; import static org.junit.jupiter.api.Assertions.assertEquals; import static org.junit.jupiter.api.Assertions.assertFalse; import static org.junit.jupiter.api.Assertions.assertTrue; import java.util.EmptyStackException; import org.junit.jupiter.api.BeforeEach; import org.junit.jupiter....
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/test/java/com/thealgorithms/others/TwoPointersTest.java
src/test/java/com/thealgorithms/others/TwoPointersTest.java
package com.thealgorithms.others; import static org.junit.jupiter.api.Assertions.assertEquals; import static org.junit.jupiter.api.Assertions.assertFalse; import static org.junit.jupiter.api.Assertions.assertThrows; import static org.junit.jupiter.api.Assertions.assertTrue; import org.junit.jupiter.api.Test; public ...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/test/java/com/thealgorithms/others/NewManShanksPrimeTest.java
src/test/java/com/thealgorithms/others/NewManShanksPrimeTest.java
package com.thealgorithms.others; import static org.junit.jupiter.api.Assertions.assertTrue; import com.thealgorithms.dynamicprogramming.NewManShanksPrime; import org.junit.jupiter.api.Test; public class NewManShanksPrimeTest { @Test void testOne() { assertTrue(NewManShanksPrime.nthManShanksPrime(1,...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/test/java/com/thealgorithms/others/IterativeFloodFillTest.java
src/test/java/com/thealgorithms/others/IterativeFloodFillTest.java
package com.thealgorithms.others; import static org.junit.jupiter.api.Assertions.assertArrayEquals; import static org.junit.jupiter.api.Assertions.assertDoesNotThrow; import org.junit.jupiter.api.Test; class IterativeFloodFillTest { @Test void testForEmptyImage() { int[][] image = {}; int[][...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/test/java/com/thealgorithms/others/LowestBasePalindromeTest.java
src/test/java/com/thealgorithms/others/LowestBasePalindromeTest.java
package com.thealgorithms.others; import java.util.ArrayList; import java.util.Arrays; import java.util.List; import java.util.stream.Stream; import org.junit.jupiter.api.Assertions; import org.junit.jupiter.params.ParameterizedTest; import org.junit.jupiter.params.provider.Arguments; import org.junit.jupiter.params.p...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/test/java/com/thealgorithms/others/cn/HammingDistanceTest.java
src/test/java/com/thealgorithms/others/cn/HammingDistanceTest.java
package com.thealgorithms.others.cn; import org.assertj.core.api.Assertions; import org.junit.jupiter.api.Test; public class HammingDistanceTest { @Test public void checkForDifferentBits() { int answer = HammingDistance.compute("000", "011"); Assertions.assertThat(answer).isEqualTo(2); } ...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/test/java/com/thealgorithms/slidingwindow/LongestSubstringWithoutRepeatingCharactersTest.java
src/test/java/com/thealgorithms/slidingwindow/LongestSubstringWithoutRepeatingCharactersTest.java
package com.thealgorithms.slidingwindow; import static org.junit.jupiter.api.Assertions.assertEquals; import org.junit.jupiter.api.Test; /** * Unit tests for the LongestSubstringWithoutRepeatingCharacters class. * * @author (https://github.com/Chiefpatwal) */ public class LongestSubstringWithoutRepeatingCharact...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/test/java/com/thealgorithms/slidingwindow/MinSumKSizeSubarrayTest.java
src/test/java/com/thealgorithms/slidingwindow/MinSumKSizeSubarrayTest.java
package com.thealgorithms.slidingwindow; import static org.junit.jupiter.api.Assertions.assertEquals; import org.junit.jupiter.api.Test; /** * Unit tests for the MinSumKSizeSubarray class. * * @author Rashi Dashore (https://github.com/rashi07dashore) */ class MinSumKSizeSubarrayTest { /** * Test for th...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/test/java/com/thealgorithms/slidingwindow/MinimumWindowSubstringTest.java
src/test/java/com/thealgorithms/slidingwindow/MinimumWindowSubstringTest.java
package com.thealgorithms.slidingwindow; import static org.junit.jupiter.api.Assertions.assertEquals; import org.junit.jupiter.api.Test; /** * Finds the minimum window substring in {@code s} that contains all characters of {@code t}. * * @param s The input string to search within * @param t The string with requi...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/test/java/com/thealgorithms/slidingwindow/MaxSumKSizeSubarrayTest.java
src/test/java/com/thealgorithms/slidingwindow/MaxSumKSizeSubarrayTest.java
package com.thealgorithms.slidingwindow; import static org.junit.jupiter.api.Assertions.assertEquals; import org.junit.jupiter.api.Test; /** * Unit tests for the MaxSumKSizeSubarray class. * * @author Your Name (https://github.com/Chiefpatwal) */ class MaxSumKSizeSubarrayTest { /** * Test for the basic...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/test/java/com/thealgorithms/slidingwindow/LongestSubarrayWithSumLessOrEqualToKTest.java
src/test/java/com/thealgorithms/slidingwindow/LongestSubarrayWithSumLessOrEqualToKTest.java
package com.thealgorithms.slidingwindow; import static org.junit.jupiter.api.Assertions.assertEquals; import org.junit.jupiter.api.Test; /** * Unit tests for the LongestSubarrayWithSumLessOrEqualToK algorithm. */ public class LongestSubarrayWithSumLessOrEqualToKTest { /** * Tests for the longest subarray...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/test/java/com/thealgorithms/slidingwindow/MaximumSlidingWindowTest.java
src/test/java/com/thealgorithms/slidingwindow/MaximumSlidingWindowTest.java
package com.thealgorithms.slidingwindow; import static org.junit.jupiter.api.Assertions.assertArrayEquals; import org.junit.jupiter.api.BeforeEach; import org.junit.jupiter.api.Test; class MaximumSlidingWindowTest { MaximumSlidingWindow msw; int[] nums; int k; @BeforeEach void setUp() { ...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/test/java/com/thealgorithms/slidingwindow/ShortestCoprimeSegmentTest.java
src/test/java/com/thealgorithms/slidingwindow/ShortestCoprimeSegmentTest.java
package com.thealgorithms.slidingwindow; import static org.junit.jupiter.api.Assertions.assertArrayEquals; import java.util.Arrays; import org.junit.jupiter.api.Test; /** * Unit tests for ShortestCoprimeSegment algorithm * * @author DomTr (<a href="https://github.com/DomTr">...</a>) */ public class ShortestCopri...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/test/java/com/thealgorithms/divideandconquer/TilingProblemTest.java
src/test/java/com/thealgorithms/divideandconquer/TilingProblemTest.java
package com.thealgorithms.divideandconquer; import static org.junit.jupiter.api.Assertions.assertArrayEquals; import org.junit.jupiter.api.Test; public class TilingProblemTest { @Test public void testTilingSize2() { int[][] expected = {{1, 1}, {1, 0}}; int[][] result = TilingProblem.solveTil...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/test/java/com/thealgorithms/divideandconquer/ClosestPairTest.java
src/test/java/com/thealgorithms/divideandconquer/ClosestPairTest.java
package com.thealgorithms.divideandconquer; import static org.junit.jupiter.api.Assertions.assertEquals; import static org.junit.jupiter.api.Assertions.assertNotNull; import org.junit.jupiter.api.Test; public class ClosestPairTest { @Test public void testBuildLocation() { ClosestPair cp = new Closes...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/test/java/com/thealgorithms/divideandconquer/MedianOfTwoSortedArraysTest.java
src/test/java/com/thealgorithms/divideandconquer/MedianOfTwoSortedArraysTest.java
package com.thealgorithms.divideandconquer; import static org.junit.jupiter.api.Assertions.assertEquals; import java.util.stream.Stream; import org.junit.jupiter.params.ParameterizedTest; import org.junit.jupiter.params.provider.Arguments; import org.junit.jupiter.params.provider.MethodSource; public class MedianOfT...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/test/java/com/thealgorithms/divideandconquer/StrassenMatrixMultiplicationTest.java
src/test/java/com/thealgorithms/divideandconquer/StrassenMatrixMultiplicationTest.java
package com.thealgorithms.divideandconquer; import static org.junit.jupiter.api.Assertions.assertArrayEquals; import org.junit.jupiter.api.Test; class StrassenMatrixMultiplicationTest { StrassenMatrixMultiplication smm = new StrassenMatrixMultiplication(); // Strassen Matrix Multiplication can only be allp...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/test/java/com/thealgorithms/divideandconquer/BinaryExponentiationTest.java
src/test/java/com/thealgorithms/divideandconquer/BinaryExponentiationTest.java
package com.thealgorithms.divideandconquer; import static org.junit.jupiter.api.Assertions.assertEquals; import org.junit.jupiter.api.Test; public class BinaryExponentiationTest { @Test public void testCalculatePower() { assertEquals(1, BinaryExponentiation.calculatePower(1, 10000000)); asse...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/test/java/com/thealgorithms/divideandconquer/CountingInversionsTest.java
src/test/java/com/thealgorithms/divideandconquer/CountingInversionsTest.java
package com.thealgorithms.divideandconquer; import static org.junit.jupiter.api.Assertions.assertEquals; import org.junit.jupiter.api.Test; public class CountingInversionsTest { @Test public void testCountInversions() { int[] arr = {2, 3, 8, 6, 1}; assertEquals(5, CountingInversions.countInv...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/test/java/com/thealgorithms/divideandconquer/SkylineAlgorithmTest.java
src/test/java/com/thealgorithms/divideandconquer/SkylineAlgorithmTest.java
package com.thealgorithms.divideandconquer; import static org.junit.jupiter.api.Assertions.assertEquals; import java.util.ArrayList; import org.junit.jupiter.api.BeforeEach; import org.junit.jupiter.api.Test; public class SkylineAlgorithmTest { private SkylineAlgorithm skylineAlgorithm; @BeforeEach pub...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/backtracking/PowerSum.java
src/main/java/com/thealgorithms/backtracking/PowerSum.java
package com.thealgorithms.backtracking; /** * Problem Statement: * Find the number of ways that a given integer, N, can be expressed as the sum of the Xth powers * of unique, natural numbers. * For example, if N=100 and X=3, we have to find all combinations of unique cubes adding up to 100. * The only solution is...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/backtracking/KnightsTour.java
src/main/java/com/thealgorithms/backtracking/KnightsTour.java
package com.thealgorithms.backtracking; import java.util.ArrayList; import java.util.Comparator; import java.util.List; /** * The KnightsTour class solves the Knight's Tour problem using backtracking. * * Problem Statement: * Given an N*N board with a knight placed on the first block, the knight must * move acco...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/backtracking/ArrayCombination.java
src/main/java/com/thealgorithms/backtracking/ArrayCombination.java
package com.thealgorithms.backtracking; import java.util.ArrayList; import java.util.List; /** * This class provides methods to find all combinations of integers from 0 to n-1 * of a specified length k using backtracking. */ public final class ArrayCombination { private ArrayCombination() { } /** ...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/backtracking/MColoring.java
src/main/java/com/thealgorithms/backtracking/MColoring.java
package com.thealgorithms.backtracking; import java.util.ArrayList; import java.util.HashSet; import java.util.LinkedList; import java.util.Queue; import java.util.Set; /** * Node class represents a graph node. Each node is associated with a color * (initially 1) and contains a set of edges representing its adjacen...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/backtracking/FloodFill.java
src/main/java/com/thealgorithms/backtracking/FloodFill.java
package com.thealgorithms.backtracking; /** * Java program for Flood fill algorithm. * @author Akshay Dubey (<a href="https://github.com/itsAkshayDubey">Git-Akshay Dubey</a>) */ public final class FloodFill { private FloodFill() { } /** * Get the color at the given coordinates of a 2D image *...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/backtracking/ParenthesesGenerator.java
src/main/java/com/thealgorithms/backtracking/ParenthesesGenerator.java
package com.thealgorithms.backtracking; import java.util.ArrayList; import java.util.List; /** * This class generates all valid combinations of parentheses for a given number of pairs using backtracking. */ public final class ParenthesesGenerator { private ParenthesesGenerator() { } /** * Generate...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/backtracking/Combination.java
src/main/java/com/thealgorithms/backtracking/Combination.java
package com.thealgorithms.backtracking; import java.util.Arrays; import java.util.Collections; import java.util.LinkedList; import java.util.List; import java.util.TreeSet; /** * Finds all combinations of a given array using backtracking algorithm * @author Alan Piao (<a href="https://github.com/cpiao3">git-Alan Pia...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/backtracking/SudokuSolver.java
src/main/java/com/thealgorithms/backtracking/SudokuSolver.java
package com.thealgorithms.backtracking; /** * Sudoku Solver using Backtracking Algorithm * Solves a 9x9 Sudoku puzzle by filling empty cells with valid digits (1-9) * * @author Navadeep0007 */ public final class SudokuSolver { private static final int GRID_SIZE = 9; private static final int SUBGRID_SIZE ...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/backtracking/SubsequenceFinder.java
src/main/java/com/thealgorithms/backtracking/SubsequenceFinder.java
package com.thealgorithms.backtracking; import java.util.ArrayList; import java.util.List; /** * Class generates all subsequences for a given list of elements using backtracking */ public final class SubsequenceFinder { private SubsequenceFinder() { } /** * Find all subsequences of given list usin...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/backtracking/Permutation.java
src/main/java/com/thealgorithms/backtracking/Permutation.java
package com.thealgorithms.backtracking; import java.util.LinkedList; import java.util.List; /** * Finds all permutations of given array * @author Alan Piao (<a href="https://github.com/cpiao3">Git-Alan Piao</a>) */ public final class Permutation { private Permutation() { } /** * Find all permutat...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/backtracking/CrosswordSolver.java
src/main/java/com/thealgorithms/backtracking/CrosswordSolver.java
package com.thealgorithms.backtracking; import java.util.ArrayList; import java.util.Collection; import java.util.List; /** * A class to solve a crossword puzzle using backtracking. * Example: * Input: * puzzle = { * {' ', ' ', ' '}, * {' ', ' ', ' '}, * {' ', ' ', ' '} * } * words = List.o...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/backtracking/AllPathsFromSourceToTarget.java
src/main/java/com/thealgorithms/backtracking/AllPathsFromSourceToTarget.java
package com.thealgorithms.backtracking; import java.util.ArrayList; import java.util.List; /** * Program description - To find all possible paths from source to destination * <a href="https://en.wikipedia.org/wiki/Shortest_path_problem">Wikipedia</a> * * @author <a href="https://github.com/siddhant2002">Siddhant ...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/backtracking/WordPatternMatcher.java
src/main/java/com/thealgorithms/backtracking/WordPatternMatcher.java
package com.thealgorithms.backtracking; import java.util.HashMap; import java.util.Map; /** * Class to determine if a pattern matches a string using backtracking. * * Example: * Pattern: "abab" * Input String: "JavaPythonJavaPython" * Output: true * * Pattern: "aaaa" * Input String: "JavaJavaJavaJava" * Out...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/backtracking/UniquePermutation.java
src/main/java/com/thealgorithms/backtracking/UniquePermutation.java
package com.thealgorithms.backtracking; import java.util.ArrayList; import java.util.Arrays; import java.util.List; /** * Generates all UNIQUE permutations of a string, even when duplicate characters exist. * * Example: * Input: "AAB" * Output: ["AAB", "ABA", "BAA"] * * Time Complexity: O(n! * n) */ publi...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/backtracking/NQueens.java
src/main/java/com/thealgorithms/backtracking/NQueens.java
package com.thealgorithms.backtracking; import java.util.ArrayList; import java.util.List; /** * Problem statement: Given a N x N chess board. Return all arrangements in * which N queens can be placed on the board such no two queens attack each * other. Ex. N = 6 Solution= There are 4 possible ways Arrangement: 1 ...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/backtracking/WordSearch.java
src/main/java/com/thealgorithms/backtracking/WordSearch.java
package com.thealgorithms.backtracking; /** * Word Search Problem * * This class solves the word search problem where given an m x n grid of characters (board) * and a target word, the task is to check if the word exists in the grid. * The word can be constructed from sequentially adjacent cells (horizontally or ...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/backtracking/CombinationSum.java
src/main/java/com/thealgorithms/backtracking/CombinationSum.java
package com.thealgorithms.backtracking; import java.util.ArrayList; import java.util.Arrays; import java.util.List; /** Backtracking: pick/not-pick with reuse of candidates. */ public final class CombinationSum { private CombinationSum() { throw new UnsupportedOperationException("Utility class"); } ...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/backtracking/MazeRecursion.java
src/main/java/com/thealgorithms/backtracking/MazeRecursion.java
package com.thealgorithms.backtracking; /** * This class contains methods to solve a maze using recursive backtracking. * The maze is represented as a 2D array where walls, paths, and visited/dead * ends are marked with different integers. * * The goal is to find a path from a starting position to the target posi...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/physics/DampedOscillator.java
src/main/java/com/thealgorithms/physics/DampedOscillator.java
package com.thealgorithms.physics; /** * Models a damped harmonic oscillator, capturing the behavior of a mass-spring-damper system. * * <p>The system is defined by the second-order differential equation: * x'' + 2 * gamma * x' + omega₀² * x = 0 * where: * <ul> * <li><b>omega₀</b> is the natural (undamped...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/physics/GroundToGroundProjectileMotion.java
src/main/java/com/thealgorithms/physics/GroundToGroundProjectileMotion.java
package com.thealgorithms.physics; /** * Ground to ground projectile motion calculator * * Ground to ground projectile motion is when a projectile's trajectory * starts at the ground, reaches the apex, then falls back on the ground. * * @author [Yash Rajput](https://github.com/the-yash-rajput) */ public final c...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/physics/ThinLens.java
src/main/java/com/thealgorithms/physics/ThinLens.java
package com.thealgorithms.physics; /** * Implements the Thin Lens Formula used in ray optics: * * <pre> * 1/f = 1/v + 1/u * </pre> * * where: * <ul> * <li>f = focal length</li> * <li>u = object distance</li> * <li>v = image distance</li> * </ul> * * Uses the Cartesian sign convention. * * @se...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/physics/SimplePendulumRK4.java
src/main/java/com/thealgorithms/physics/SimplePendulumRK4.java
package com.thealgorithms.physics; /** * Simulates a simple pendulum using the Runge-Kutta 4th order method. * The pendulum is modeled with the nonlinear differential equation. * * @author [Yash Rajput](https://github.com/the-yash-rajput) */ public final class SimplePendulumRK4 { private SimplePendulumRK4() ...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/physics/Kinematics.java
src/main/java/com/thealgorithms/physics/Kinematics.java
package com.thealgorithms.physics; /** * Implements the fundamental "SUVAT" equations for motion * under constant acceleration. * * @author [Priyanshu Kumar Singh](https://github.com/Priyanshu1303d) * @see <a href="https://en.wikipedia.org/wiki/Equations_of_motion#Uniform_acceleration">Wikipedia</a> */ public fin...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/physics/Gravitation.java
src/main/java/com/thealgorithms/physics/Gravitation.java
package com.thealgorithms.physics; /** * Implements Newton's Law of Universal Gravitation. * Provides simple static methods to calculate gravitational force and circular orbit velocity. * * @author [Priyanshu Kumar Singh](https://github.com/Priyanshu1303d) * @see <a href="https://en.wikipedia.org/wiki/Newton%27s_...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/physics/SnellLaw.java
src/main/java/com/thealgorithms/physics/SnellLaw.java
package com.thealgorithms.physics; /** * Calculates refraction angle using Snell's Law: * n1 * sin(theta1) = n2 * sin(theta2) * @see <a href="https://en.wikipedia.org/wiki/Snell%27s_law">Snell's Law</a> */ public final class SnellLaw { private SnellLaw() { throw new AssertionError("No instances."); ...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/physics/ElasticCollision2D.java
src/main/java/com/thealgorithms/physics/ElasticCollision2D.java
package com.thealgorithms.physics; /** * 2D Elastic collision between two circular bodies * Based on principles of conservation of momentum and kinetic energy. * * @author [Yash Rajput](https://github.com/the-yash-rajput) */ public final class ElasticCollision2D { private ElasticCollision2D() { throw...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/physics/ProjectileMotion.java
src/main/java/com/thealgorithms/physics/ProjectileMotion.java
package com.thealgorithms.physics; /** * * This implementation calculates the flight path of a projectile launched from any INITIAL HEIGHT. * It is a more flexible version of the ground-to-ground model. * * @see <a href="https://en.wikipedia.org/wiki/Projectile_motion">Wikipedia - Projectile Motion</a> * @author...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/physics/CoulombsLaw.java
src/main/java/com/thealgorithms/physics/CoulombsLaw.java
package com.thealgorithms.physics; /** * Implements Coulomb's Law for electrostatics. * Provides simple static methods to calculate electrostatic force and circular orbit velocity. * * @author [Priyanshu Singh](https://github.com/Priyanshu1303d) * @see <a href="https://en.wikipedia.org/wiki/Coulomb%27s_law">Wikip...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/misc/PalindromeSinglyLinkedList.java
src/main/java/com/thealgorithms/misc/PalindromeSinglyLinkedList.java
package com.thealgorithms.misc; import java.util.Stack; /** * A simple way of knowing if a singly linked list is palindrome is to push all * the values into a Stack and then compare the list to popped vales from the * Stack. * * See more: * https://www.geeksforgeeks.org/function-to-check-if-a-singly-linked-list...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/misc/MedianOfRunningArrayInteger.java
src/main/java/com/thealgorithms/misc/MedianOfRunningArrayInteger.java
package com.thealgorithms.misc; public final class MedianOfRunningArrayInteger extends MedianOfRunningArray<Integer> { @Override public Integer calculateAverage(final Integer a, final Integer b) { return (a + b) / 2; } }
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/misc/ThreeSumProblem.java
src/main/java/com/thealgorithms/misc/ThreeSumProblem.java
package com.thealgorithms.misc; import java.util.ArrayList; import java.util.Arrays; import java.util.Collections; import java.util.HashMap; import java.util.HashSet; import java.util.LinkedHashSet; import java.util.List; import java.util.Set; public class ThreeSumProblem { public List<List<Integer>> bruteForce(...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/misc/RangeInSortedArray.java
src/main/java/com/thealgorithms/misc/RangeInSortedArray.java
package com.thealgorithms.misc; /** * Utility class for operations to find the range of occurrences of a key * in a sorted (non-decreasing) array, and to count elements less than or equal to a given key. */ public final class RangeInSortedArray { private RangeInSortedArray() { } /** * Finds the f...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/misc/MedianOfRunningArrayByte.java
src/main/java/com/thealgorithms/misc/MedianOfRunningArrayByte.java
package com.thealgorithms.misc; public final class MedianOfRunningArrayByte extends MedianOfRunningArray<Byte> { @Override public Byte calculateAverage(final Byte a, final Byte b) { return (byte) ((a + b) / 2); } }
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/misc/MapReduce.java
src/main/java/com/thealgorithms/misc/MapReduce.java
package com.thealgorithms.misc; import java.util.Arrays; import java.util.LinkedHashMap; import java.util.List; import java.util.Map; import java.util.function.Function; import java.util.stream.Collectors; /** * MapReduce is a programming model for processing and generating large data sets * using a parallel, distr...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/misc/MedianOfRunningArray.java
src/main/java/com/thealgorithms/misc/MedianOfRunningArray.java
package com.thealgorithms.misc; import java.util.Collections; import java.util.PriorityQueue; /** * A generic abstract class to compute the median of a dynamically growing stream of numbers. * * @param <T> the number type, must extend Number and be Comparable * * Usage: * Extend this class and implement {@code ...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/misc/PalindromePrime.java
src/main/java/com/thealgorithms/misc/PalindromePrime.java
package com.thealgorithms.misc; import java.util.ArrayList; import java.util.List; public final class PalindromePrime { private PalindromePrime() { } public static boolean prime(int num) { if (num < 2) { return false; // Handle edge case for numbers < 2 } if (num == 2)...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/misc/ShuffleArray.java
src/main/java/com/thealgorithms/misc/ShuffleArray.java
package com.thealgorithms.misc; import java.util.Random; /** * The Fisher-Yates (Knuth) Shuffle algorithm randomly permutes an array's * elements, ensuring each permutation is equally likely. * * <p> * Worst-case performance O(n) * Best-case performance O(n) * Average performance O(n) * Worst-case space compl...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/misc/TwoSumProblem.java
src/main/java/com/thealgorithms/misc/TwoSumProblem.java
package com.thealgorithms.misc; import java.util.HashMap; import java.util.Optional; import org.apache.commons.lang3.tuple.Pair; public final class TwoSumProblem { private TwoSumProblem() { } /** * The function "twoSum" takes an array of integers and a target integer as input, and returns an * ...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/misc/MedianOfRunningArrayFloat.java
src/main/java/com/thealgorithms/misc/MedianOfRunningArrayFloat.java
package com.thealgorithms.misc; public final class MedianOfRunningArrayFloat extends MedianOfRunningArray<Float> { @Override public Float calculateAverage(final Float a, final Float b) { return (a + b) / 2.0f; } }
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/misc/MedianOfRunningArrayDouble.java
src/main/java/com/thealgorithms/misc/MedianOfRunningArrayDouble.java
package com.thealgorithms.misc; public final class MedianOfRunningArrayDouble extends MedianOfRunningArray<Double> { @Override public Double calculateAverage(final Double a, final Double b) { return (a + b) / 2.0d; } }
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/misc/Sparsity.java
src/main/java/com/thealgorithms/misc/Sparsity.java
package com.thealgorithms.misc; /** * Utility class for calculating the sparsity of a matrix. * A matrix is considered sparse if a large proportion of its elements are zero. * Typically, if more than 2/3 of the elements are zero, the matrix is considered sparse. * * Sparsity is defined as: * sparsity = (number o...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/misc/ColorContrastRatio.java
src/main/java/com/thealgorithms/misc/ColorContrastRatio.java
package com.thealgorithms.misc; import java.awt.Color; /** * @brief A Java implementation of the official W3 documented procedure to * calculate contrast ratio between colors on the web. This is used to calculate * the readability of a foreground color on top of a background color. * @since 2020-10-15 * @see <a ...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/misc/MedianOfRunningArrayLong.java
src/main/java/com/thealgorithms/misc/MedianOfRunningArrayLong.java
package com.thealgorithms.misc; public final class MedianOfRunningArrayLong extends MedianOfRunningArray<Long> { @Override public Long calculateAverage(final Long a, final Long b) { return (a + b) / 2L; } }
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/scheduling/PreemptivePriorityScheduling.java
src/main/java/com/thealgorithms/scheduling/PreemptivePriorityScheduling.java
package com.thealgorithms.scheduling; import com.thealgorithms.devutils.entities.ProcessDetails; import java.util.ArrayList; import java.util.Collection; import java.util.Comparator; import java.util.List; import java.util.PriorityQueue; /** * Preemptive Priority Scheduling Algorithm * * @author [Bama Charan Chhan...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/scheduling/LotteryScheduling.java
src/main/java/com/thealgorithms/scheduling/LotteryScheduling.java
package com.thealgorithms.scheduling; import java.util.ArrayList; import java.util.List; import java.util.Random; /** * The LotteryScheduling class implements the Lottery Scheduling algorithm, which is * a probabilistic CPU scheduling algorithm. Processes are assigned tickets, and * the CPU is allocated to a rando...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/scheduling/ProportionalFairScheduling.java
src/main/java/com/thealgorithms/scheduling/ProportionalFairScheduling.java
package com.thealgorithms.scheduling; import java.util.ArrayList; import java.util.List; /** * ProportionalFairScheduling allocates resources to processes based on their * proportional weight or importance. It aims to balance fairness with * priority, ensuring that higher-weight processes receive a larger share of...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/scheduling/SelfAdjustingScheduling.java
src/main/java/com/thealgorithms/scheduling/SelfAdjustingScheduling.java
package com.thealgorithms.scheduling; import java.util.PriorityQueue; /** * SelfAdjustingScheduling is an algorithm where tasks dynamically adjust * their priority based on real-time feedback, such as wait time and CPU usage. * Tasks that wait longer will automatically increase their priority, * allowing for bett...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/scheduling/HighestResponseRatioNextScheduling.java
src/main/java/com/thealgorithms/scheduling/HighestResponseRatioNextScheduling.java
package com.thealgorithms.scheduling; import java.util.Arrays; import java.util.Comparator; /** * The {@code HighestResponseRatioNextScheduling} class implements the * Highest Response Ratio Next (HRRN) scheduling algorithm. * HRRN is a non-preemptive scheduling algorithm that selects the process with * the highe...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/scheduling/JobSchedulingWithDeadline.java
src/main/java/com/thealgorithms/scheduling/JobSchedulingWithDeadline.java
package com.thealgorithms.scheduling; import java.util.Arrays; import java.util.Comparator; /** * A class that implements a job scheduling algorithm to maximize profit * while adhering to job deadlines and arrival times. * * This class provides functionality to schedule jobs based on their profit, * arrival time...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/scheduling/EDFScheduling.java
src/main/java/com/thealgorithms/scheduling/EDFScheduling.java
package com.thealgorithms.scheduling; import java.util.ArrayList; import java.util.Comparator; import java.util.List; /** * The Earliest Deadline First (EDF) Scheduling class implements a dynamic scheduling algorithm. * It assigns the CPU to processes with the earliest deadlines, ensuring that deadlines are met if ...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/scheduling/SlackTimeScheduling.java
src/main/java/com/thealgorithms/scheduling/SlackTimeScheduling.java
package com.thealgorithms.scheduling; import java.util.ArrayList; import java.util.Comparator; import java.util.List; /** * SlackTimeScheduling is an algorithm that prioritizes tasks based on their * slack time, which is defined as the difference between the task's deadline * and the time required to execute it. T...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/scheduling/FairShareScheduling.java
src/main/java/com/thealgorithms/scheduling/FairShareScheduling.java
package com.thealgorithms.scheduling; import java.util.HashMap; import java.util.Map; /** * FairShareScheduling allocates CPU resources equally among users or groups * instead of individual tasks. Each group gets a proportional share, * preventing resource hogging by a single user's processes. * * Use Case: Mult...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/scheduling/MultiAgentScheduling.java
src/main/java/com/thealgorithms/scheduling/MultiAgentScheduling.java
package com.thealgorithms.scheduling; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; /** * MultiAgentScheduling assigns tasks to different autonomous agents * who independently decide the execution order of their assigned tasks. * The focus is on collaboration be...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/scheduling/MLFQScheduler.java
src/main/java/com/thealgorithms/scheduling/MLFQScheduler.java
package com.thealgorithms.scheduling; import java.util.ArrayList; import java.util.LinkedList; import java.util.List; import java.util.Queue; /** * The Multi-Level Feedback Queue (MLFQ) Scheduler class. * This class simulates scheduling using multiple queues, where processes move * between queues depending on thei...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/scheduling/RandomScheduling.java
src/main/java/com/thealgorithms/scheduling/RandomScheduling.java
package com.thealgorithms.scheduling; import java.util.ArrayList; import java.util.Collection; import java.util.Collections; import java.util.List; import java.util.Random; /** * RandomScheduling is an algorithm that assigns tasks in a random order. * It doesn't consider priority, deadlines, or burst times, making ...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/scheduling/FCFSScheduling.java
src/main/java/com/thealgorithms/scheduling/FCFSScheduling.java
package com.thealgorithms.scheduling; import com.thealgorithms.devutils.entities.ProcessDetails; import java.util.List; /** * Non-pre-emptive First Come First Serve scheduling. This can be understood here - * https://www.scaler.com/topics/first-come-first-serve/ */ public class FCFSScheduling { private List<P...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/scheduling/NonPreemptivePriorityScheduling.java
src/main/java/com/thealgorithms/scheduling/NonPreemptivePriorityScheduling.java
package com.thealgorithms.scheduling; import java.util.Collections; import java.util.LinkedList; import java.util.PriorityQueue; import java.util.Queue; /** * This class implements the Non-Preemptive Priority Scheduling algorithm. * Processes are executed in order of their priority. The process with the * highest ...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/scheduling/GangScheduling.java
src/main/java/com/thealgorithms/scheduling/GangScheduling.java
package com.thealgorithms.scheduling; import java.util.ArrayList; import java.util.HashMap; import java.util.List; import java.util.Map; /** * GangScheduling groups related tasks (gangs) to run simultaneously on multiple processors. * All tasks in a gang are executed together or not at all. * * Use Case: Parallel...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/scheduling/SJFScheduling.java
src/main/java/com/thealgorithms/scheduling/SJFScheduling.java
package com.thealgorithms.scheduling; import com.thealgorithms.devutils.entities.ProcessDetails; import java.util.ArrayList; import java.util.Collection; import java.util.Comparator; import java.util.Iterator; import java.util.List; /** * Shortest Job First (SJF) Scheduling Algorithm: * Executes processes with the ...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/scheduling/AgingScheduling.java
src/main/java/com/thealgorithms/scheduling/AgingScheduling.java
package com.thealgorithms.scheduling; import java.util.LinkedList; import java.util.Queue; /** * AgingScheduling is an algorithm designed to prevent starvation * by gradually increasing the priority of waiting tasks. * The longer a process waits, the higher its priority becomes. * * Use Case: Useful in systems w...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/scheduling/RRScheduling.java
src/main/java/com/thealgorithms/scheduling/RRScheduling.java
package com.thealgorithms.scheduling; import com.thealgorithms.devutils.entities.ProcessDetails; import java.util.Arrays; import java.util.LinkedList; import java.util.List; import java.util.Queue; /** * @author Md Asif Joardar * The Round-robin scheduling algorithm is a kind of preemptive First come, First Serve C...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/scheduling/SRTFScheduling.java
src/main/java/com/thealgorithms/scheduling/SRTFScheduling.java
package com.thealgorithms.scheduling; import com.thealgorithms.devutils.entities.ProcessDetails; import java.util.ArrayList; import java.util.List; /** * Implementation of Shortest Remaining Time First Scheduling Algorithm. * In the SRTF scheduling algorithm, the process with the smallest amount of time remaining u...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/scheduling/diskscheduling/LookScheduling.java
src/main/java/com/thealgorithms/scheduling/diskscheduling/LookScheduling.java
package com.thealgorithms.scheduling.diskscheduling; import java.util.ArrayList; import java.util.Collections; import java.util.List; /** * https://en.wikipedia.org/wiki/LOOK_algorithm * Look Scheduling algorithm implementation. * The Look algorithm moves the disk arm to the closest request in the current directio...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/scheduling/diskscheduling/CircularScanScheduling.java
src/main/java/com/thealgorithms/scheduling/diskscheduling/CircularScanScheduling.java
package com.thealgorithms.scheduling.diskscheduling; import java.util.ArrayList; import java.util.Collections; import java.util.List; /** * Circular Scan Scheduling (C-SCAN) is a disk scheduling algorithm that * works by moving the disk arm in one direction to service requests until * it reaches the end of the dis...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/scheduling/diskscheduling/ScanScheduling.java
src/main/java/com/thealgorithms/scheduling/diskscheduling/ScanScheduling.java
package com.thealgorithms.scheduling.diskscheduling; import java.util.ArrayList; import java.util.Collections; import java.util.List; /** * https://en.wikipedia.org/wiki/Elevator_algorithm * SCAN Scheduling algorithm implementation. * The SCAN algorithm moves the disk arm towards one end of the disk, servicing all...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/scheduling/diskscheduling/CircularLookScheduling.java
src/main/java/com/thealgorithms/scheduling/diskscheduling/CircularLookScheduling.java
package com.thealgorithms.scheduling.diskscheduling; import java.util.ArrayList; import java.util.Collections; import java.util.List; /** * Circular Look Scheduling (C-LOOK) is a disk scheduling algorithm similar to * the C-SCAN algorithm but with a key difference. In C-LOOK, the disk arm also * moves in one direc...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/scheduling/diskscheduling/SSFScheduling.java
src/main/java/com/thealgorithms/scheduling/diskscheduling/SSFScheduling.java
package com.thealgorithms.scheduling.diskscheduling; import java.util.ArrayList; import java.util.Collection; import java.util.List; /** *https://en.wikipedia.org/wiki/Shortest_seek_first * Shortest Seek First (SFF) Scheduling algorithm implementation. * The SFF algorithm selects the next request to be serviced ba...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/stacks/GreatestElementConstantTime.java
src/main/java/com/thealgorithms/stacks/GreatestElementConstantTime.java
package com.thealgorithms.stacks; import java.util.NoSuchElementException; import java.util.Stack; /** * A class that implements a stack that gives the maximum element in O(1) time. * The mainStack is used to store the all the elements of the stack * While the maxStack stores the maximum elements * When we want t...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/stacks/SmallestElementConstantTime.java
src/main/java/com/thealgorithms/stacks/SmallestElementConstantTime.java
package com.thealgorithms.stacks; import java.util.NoSuchElementException; import java.util.Stack; /** * A class that implements a stack that gives the minimum element in O(1) time. * The mainStack is used to store the all the elements of the stack * While the minStack stores the minimum elements * When we want t...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/stacks/DuplicateBrackets.java
src/main/java/com/thealgorithms/stacks/DuplicateBrackets.java
package com.thealgorithms.stacks; import java.util.Stack; /** * Class for detecting unnecessary or redundant brackets in a mathematical expression. * Assumes the expression is balanced (i.e., all opening brackets have matching closing brackets). */ public final class DuplicateBrackets { private DuplicateBracke...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/stacks/NextSmallerElement.java
src/main/java/com/thealgorithms/stacks/NextSmallerElement.java
package com.thealgorithms.stacks; import java.util.Arrays; import java.util.Stack; /** * Utility class to find the next smaller element for each element in a given integer array. * * <p>The next smaller element for an element x is the first smaller element on the left side of x in the array. * If no such element ...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/stacks/DecimalToAnyUsingStack.java
src/main/java/com/thealgorithms/stacks/DecimalToAnyUsingStack.java
package com.thealgorithms.stacks; import java.util.Stack; /** * Utility class for converting a non-negative decimal (base-10) integer * to its representation in another radix (base) between 2 and 16, inclusive. * * <p>This class uses a stack-based approach to reverse the digits obtained from * successive divisio...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/stacks/PostfixEvaluator.java
src/main/java/com/thealgorithms/stacks/PostfixEvaluator.java
package com.thealgorithms.stacks; import java.util.Set; import java.util.Stack; /** * Evaluate a postfix (Reverse Polish) expression using a stack. * * <p>Example: Expression "5 6 + 2 *" results in 22. * <p>Applications: Used in calculators and expression evaluation in compilers. * * @author Hardvan */ public ...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/stacks/PalindromeWithStack.java
src/main/java/com/thealgorithms/stacks/PalindromeWithStack.java
package com.thealgorithms.stacks; import java.util.LinkedList; /** * A class that implements a palindrome checker using a stack. * The stack is used to store the characters of the string, * which we will pop one-by-one to create the string in reverse. * * Reference: https://www.geeksforgeeks.org/check-whether-th...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/stacks/StackUsingTwoQueues.java
src/main/java/com/thealgorithms/stacks/StackUsingTwoQueues.java
package com.thealgorithms.stacks; import java.util.LinkedList; import java.util.NoSuchElementException; import java.util.Queue; /** * A class that implements a stack using two queues. * This approach ensures that the stack's LIFO (Last In, First Out) behavior * is maintained by utilizing two queues for storage. *...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/stacks/CelebrityFinder.java
src/main/java/com/thealgorithms/stacks/CelebrityFinder.java
package com.thealgorithms.stacks; import java.util.Stack; /** * Solves the celebrity problem using a stack-based algorithm. * * <p>Celebrity is someone known by everyone but doesn't know anyone else. * <p>Applications: Graph theory and social network analysis. * * @author Hardvan */ public final class Celebrit...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/stacks/PostfixToInfix.java
src/main/java/com/thealgorithms/stacks/PostfixToInfix.java
package com.thealgorithms.stacks; import java.util.Stack; /** * Postfix to Infix implementation via Stack * * Function: String getPostfixToInfix(String postfix) * Returns the Infix Expression for the given postfix parameter. * * Avoid using parentheses/brackets/braces for the postfix string. * Postfix Expressi...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/stacks/PrefixToInfix.java
src/main/java/com/thealgorithms/stacks/PrefixToInfix.java
package com.thealgorithms.stacks; import java.util.Stack; /** * Converts a prefix expression to an infix expression using a stack. * * The input prefix expression should consist of * valid operands (letters or digits) and operators (+, -, *, /, ^). * Parentheses are not required in the prefix string. */ public ...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/stacks/MinStackUsingSingleStack.java
src/main/java/com/thealgorithms/stacks/MinStackUsingSingleStack.java
package com.thealgorithms.stacks; import java.util.EmptyStackException; import java.util.Stack; /** * Min-Stack implementation using a single stack. * * This stack supports push, pop, and retrieving the minimum element * in constant time (O(1)) using a modified approach where the stack * stores both the element ...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false
TheAlgorithms/Java
https://github.com/TheAlgorithms/Java/blob/e945f1622490ff3b32e59d31780df27d0dc2ede4/src/main/java/com/thealgorithms/stacks/ValidParentheses.java
src/main/java/com/thealgorithms/stacks/ValidParentheses.java
package com.thealgorithms.stacks; import java.util.HashMap; import java.util.Map; import java.util.Stack; /** * Valid Parentheses Problem * * Given a string containing just the characters '(', ')', '{', '}', '[' and ']', * determine if the input string is valid. * * An input string is valid if: * 1. Open brack...
java
MIT
e945f1622490ff3b32e59d31780df27d0dc2ede4
2026-01-04T14:45:56.733479Z
false