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Refactor Code Style (#4151)

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This commit is contained in:
Saurabh Rahate 2023-04-15 13:55:54 +05:30 committed by GitHub
parent 1ce907625b
commit 1dc388653a
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100 changed files with 293 additions and 319 deletions
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2
src/main/java/com/thealgorithms/backtracking/AllPathsFromSourceToTarget.java
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@ -91,7 +91,7 @@ public class AllPathsFromSourceToTarget {
}
// Driver program
public static List<List<Integer>> allPathsFromSourceToTarget(int vertices, int a[][], int source, int destination)
public static List<List<Integer>> allPathsFromSourceToTarget(int vertices, int[][] a, int source, int destination)
{
// Create a sample graph
AllPathsFromSourceToTarget g = new AllPathsFromSourceToTarget(vertices);

6
src/main/java/com/thealgorithms/ciphers/Blowfish.java
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@ -11,7 +11,7 @@ package com.thealgorithms.ciphers;
public class Blowfish {
//Initializing substitution boxes
String S[][] = {
String[][] S = {
{
"d1310ba6",
"98dfb5ac",
@ -1047,7 +1047,7 @@ public class Blowfish {
};
//Initializing subkeys with digits of pi
String P[] = {
String[] P = {
"243f6a88",
"85a308d3",
"13198a2e",
@ -1146,7 +1146,7 @@ public class Blowfish {
The outputs are added modulo 232 and XORed to produce the final 32-bit output
*/
private String f(String plainText) {
String a[] = new String[4];
String[] a = new String[4];
String ans = "";
for (int i = 0; i < 8; i += 2) {
//column number for S-box is a 8-bit value

12
src/main/java/com/thealgorithms/ciphers/HillCipher.java
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@ -22,7 +22,7 @@ public class HillCipher {
System.out.println("Enter key matrix size");
int matrixSize = userInput.nextInt();
System.out.println("Enter Key/encryptionKey matrix ");
int keyMatrix[][] = new int[matrixSize][matrixSize];
int[][] keyMatrix = new int[matrixSize][matrixSize];
for (int i = 0; i < matrixSize; i++) {
for (int j = 0; j < matrixSize; j++) {
keyMatrix[i][j] = userInput.nextInt();
@ -33,7 +33,7 @@ public class HillCipher {
int[][] messageVector = new int[matrixSize][1];
String CipherText = "";
int cipherMatrix[][] = new int[matrixSize][1];
int[][] cipherMatrix = new int[matrixSize][1];
int j = 0;
while (j < message.length()) {
for (int i = 0; i < matrixSize; i++) {
@ -69,7 +69,7 @@ public class HillCipher {
System.out.println("Enter key matrix size");
int n = userInput.nextInt();
System.out.println("Enter inverseKey/decryptionKey matrix ");
int keyMatrix[][] = new int[n][n];
int[][] keyMatrix = new int[n][n];
for (int i = 0; i < n; i++) {
for (int j = 0; j < n; j++) {
keyMatrix[i][j] = userInput.nextInt();
@ -81,7 +81,7 @@ public class HillCipher {
//solving for the required plaintext message
int[][] messageVector = new int[n][1];
String PlainText = "";
int plainMatrix[][] = new int[n][1];
int[][] plainMatrix = new int[n][1];
int j = 0;
while (j < message.length()) {
for (int i = 0; i < n; i++) {
@ -111,13 +111,13 @@ public class HillCipher {
}
// Determinant calculator
public static int determinant(int a[][], int n) {
public static int determinant(int[][] a, int n) {
int det = 0, sign = 1, p = 0, q = 0;
if (n == 1) {
det = a[0][0];
} else {
int b[][] = new int[n - 1][n - 1];
int[][] b = new int[n - 1][n - 1];
for (int x = 0; x < n; x++) {
p = 0;
q = 0;

2
src/main/java/com/thealgorithms/ciphers/ProductCipher.java
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@ -4,7 +4,7 @@ import java.util.Scanner;
class ProductCipher {
public static void main(String args[]) {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Enter the input to be encrypted: ");
String substitutionInput = sc.nextLine();

2
src/main/java/com/thealgorithms/conversions/BinaryToDecimal.java
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@ -23,7 +23,7 @@ class BinaryToDecimal {
*
* @param args Command line arguments
*/
public static void main(String args[]) {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.print("Binary number: ");
System.out.println("Decimal equivalent:" + binaryToDecimal(sc.nextLong()));

2
src/main/java/com/thealgorithms/conversions/BinaryToOctal.java
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@ -14,7 +14,7 @@ public class BinaryToOctal {
*
* @param args Command line arguments
*/
public static void main(String args[]) {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Input the binary number: ");
int b = sc.nextInt();

2
src/main/java/com/thealgorithms/conversions/DecimalToBinary.java
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@ -12,7 +12,7 @@ class DecimalToBinary {
*
* @param args Command Line Arguments
*/
public static void main(String args[]) {
public static void main(String[] args) {
conventionalConversion();
bitwiseConversion();
}

2
src/main/java/com/thealgorithms/conversions/HexToOct.java
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@ -52,7 +52,7 @@ public class HexToOct {
*
* @param args arguments
*/
public static void main(String args[]) {
public static void main(String[] args) {
String hexadecnum;
int decnum, octalnum;
Scanner scan = new Scanner(System.in);

2
src/main/java/com/thealgorithms/conversions/HexaDecimalToDecimal.java
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@ -17,7 +17,7 @@ public class HexaDecimalToDecimal {
}
// Main method gets the hexadecimal input from user and converts it into Decimal output.
public static void main(String args[]) {
public static void main(String[] args) {
String hexa_Input;
int dec_output;
Scanner scan = new Scanner(System.in);

2
src/main/java/com/thealgorithms/conversions/OctalToDecimal.java
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@ -14,7 +14,7 @@ public class OctalToDecimal {
*
* @param args Command line arguments
*/
public static void main(String args[]) {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.print("Octal Input: ");
String inputOctal = sc.nextLine();

2
src/main/java/com/thealgorithms/conversions/OctalToHexadecimal.java
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@ -46,7 +46,7 @@ public class OctalToHexadecimal {
return hex;
}
public static void main(String args[]) {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.print("Enter the Octal number: ");
// Take octal number as input from user in a string

2
src/main/java/com/thealgorithms/conversions/TurkishToLatinConversion.java
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@ -14,7 +14,7 @@ public class TurkishToLatinConversion {
*
* @param args Command line arguments
*/
public static void main(String args[]) {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println("Input the string: ");
String b = sc.next();

5
src/main/java/com/thealgorithms/datastructures/bags/Bag.java
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@ -59,9 +59,8 @@ public class Bag<Element> implements Iterable<Element> {
* @return true if bag contains element, otherwise false
*/
public boolean contains(Element element) {
Iterator<Element> iterator = this.iterator();
while (iterator.hasNext()) {
if (iterator.next().equals(element)) {
for (Element value : this) {
if (value.equals(element)) {
return true;
}
}

18
src/main/java/com/thealgorithms/datastructures/graphs/BellmanFord.java
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@ -6,7 +6,7 @@ class BellmanFord /*Implementation of Bellman ford to detect negative cycles. Gr
start vertex, end vertex and weights. Vertices should be labelled with a number between 0 and total number of vertices-1,both inclusive*/{
int vertex, edge;
private Edge edges[];
private Edge[] edges;
private int index = 0;
BellmanFord(int v, int e) {
@ -36,7 +36,7 @@ start vertex, end vertex and weights. Vertices should be labelled with a number
* @param p[] Parent array which shows updates in edges
* @param i Current vertex under consideration
*/
void printPath(int p[], int i) {
void printPath(int[] p, int i) {
if (p[i] == -1) { // Found the path back to parent
return;
}
@ -44,7 +44,7 @@ start vertex, end vertex and weights. Vertices should be labelled with a number
System.out.print(i + " ");
}
public static void main(String args[]) {
public static void main(String[] args) {
BellmanFord obj = new BellmanFord(0, 0); // Dummy object to call nonstatic variables
obj.go();
}
@ -55,7 +55,7 @@ start vertex, end vertex and weights. Vertices should be labelled with a number
System.out.println("Enter no. of vertices and edges please");
v = sc.nextInt();
e = sc.nextInt();
Edge arr[] = new Edge[e]; // Array of edges
Edge[] arr = new Edge[e]; // Array of edges
System.out.println("Input edges");
for (i = 0; i < e; i++) {
u = sc.nextInt();
@ -63,9 +63,9 @@ start vertex, end vertex and weights. Vertices should be labelled with a number
w = sc.nextInt();
arr[i] = new Edge(u, ve, w);
}
int dist[] = new int[v]; // Distance array for holding the finalized shortest path distance between source
int[] dist = new int[v]; // Distance array for holding the finalized shortest path distance between source
// and all vertices
int p[] = new int[v]; // Parent array for holding the paths
int[] p = new int[v]; // Parent array for holding the paths
for (i = 0; i < v; i++) {
dist[i] = Integer.MAX_VALUE; // Initializing distance values
}
@ -113,11 +113,11 @@ start vertex, end vertex and weights. Vertices should be labelled with a number
* @param end Ending vertex
* @param Edge Array of edges
*/
public void show(int source, int end, Edge arr[]) { // be created by using addEdge() method and passed by calling getEdgeArray() method // Just shows results of computation, if graph is passed to it. The graph should
public void show(int source, int end, Edge[] arr) { // be created by using addEdge() method and passed by calling getEdgeArray() method // Just shows results of computation, if graph is passed to it. The graph should
int i, j, v = vertex, e = edge, neg = 0;
double dist[] = new double[v]; // Distance array for holding the finalized shortest path distance between source
double[] dist = new double[v]; // Distance array for holding the finalized shortest path distance between source
// and all vertices
int p[] = new int[v]; // Parent array for holding the paths
int[] p = new int[v]; // Parent array for holding the paths
for (i = 0; i < v; i++) {
dist[i] = Integer.MAX_VALUE; // Initializing distance values
}

12
src/main/java/com/thealgorithms/datastructures/graphs/DIJSKSTRAS_ALGORITHM.java
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@ -8,7 +8,7 @@ class dijkstras {
int k = 9;
int minDist(int dist[], Boolean Set[]) {
int minDist(int[] dist, Boolean[] Set) {
int min = Integer.MAX_VALUE, min_index = -1;
for (int r = 0; r < k; r++) {
@ -21,16 +21,16 @@ class dijkstras {
return min_index;
}
void print(int dist[]) {
void print(int[] dist) {
System.out.println("Vertex \t\t Distance");
for (int i = 0; i < k; i++) {
System.out.println(i + " \t " + dist[i]);
}
}
void dijkstra(int graph[][], int src) {
int dist[] = new int[k];
Boolean Set[] = new Boolean[k];
void dijkstra(int[][] graph, int src) {
int[] dist = new int[k];
Boolean[] Set = new Boolean[k];
for (int i = 0; i < k; i++) {
dist[i] = Integer.MAX_VALUE;
@ -60,7 +60,7 @@ class dijkstras {
}
public static void main(String[] args) {
int graph[][] = new int[][] {
int[][] graph = new int[][] {
{ 0, 4, 0, 0, 0, 0, 0, 8, 0 },
{ 4, 0, 8, 0, 0, 0, 0, 11, 0 },
{ 0, 8, 0, 7, 0, 4, 0, 0, 2 },

4
src/main/java/com/thealgorithms/datastructures/graphs/FloydWarshall.java
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@ -4,7 +4,7 @@ import java.util.Scanner;
public class FloydWarshall {
private int DistanceMatrix[][];
private int[][] DistanceMatrix;
private int numberofvertices; // number of vertices in the graph
public static final int INFINITY = 999;
@ -15,7 +15,7 @@ public class FloydWarshall {
this.numberofvertices = numberofvertices;
}
public void floydwarshall(int AdjacencyMatrix[][]) { // calculates all the distances from source to destination vertex
public void floydwarshall(int[][] AdjacencyMatrix) { // calculates all the distances from source to destination vertex
for (int source = 1; source <= numberofvertices; source++) {
for (
int destination = 1;

2
src/main/java/com/thealgorithms/datastructures/graphs/Graphs.java
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@ -122,7 +122,7 @@ class AdjacencyListGraph<E extends Comparable<E>> {
public class Graphs {
public static void main(String args[]) {
public static void main(String[] args) {
AdjacencyListGraph<Integer> graph = new AdjacencyListGraph<>();
assert graph.addEdge(1, 2);
assert graph.addEdge(1, 5);

8
src/main/java/com/thealgorithms/datastructures/graphs/Kosaraju.java
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@ -83,7 +83,7 @@ public class Kosaraju {
}
private void sortEdgesByLowestFinishTime(int v, List<List<Integer>> list){
int vis[] = new int[v];
int[] vis = new int[v];
for (int i = 0; i < v; i++) {
if(vis[i] == 0){
dfs(i, vis, list);
@ -110,7 +110,7 @@ public class Kosaraju {
* @param transposeGraph Transpose of the given adjacency list
*/
public void findStronglyConnectedComponents(int v, List<List<Integer>> transposeGraph){
int vis[] = new int[v];
int[] vis = new int[v];
while (!stack.isEmpty()) {
var node = stack.pop();
if(vis[node] == 0){
@ -122,7 +122,7 @@ public class Kosaraju {
}
//Dfs to store the nodes in order of lowest finish time
private void dfs(int node, int vis[], List<List<Integer>> list){
private void dfs(int node, int[] vis, List<List<Integer>> list){
vis[node] = 1;
for(Integer neighbour : list.get(node)){
if(vis[neighbour] == 0)
@ -132,7 +132,7 @@ public class Kosaraju {
}
//Dfs to find all the nodes of each strongly connected component
private void dfs2(int node, int vis[], List<List<Integer>> list){
private void dfs2(int node, int[] vis, List<List<Integer>> list){
vis[node] = 1;
for(Integer neighbour : list.get(node)){
if(vis[neighbour] == 0)

2
src/main/java/com/thealgorithms/datastructures/graphs/MatrixGraphs.java
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@ -14,7 +14,7 @@ import java.util.Queue;
*/
public class MatrixGraphs {
public static void main(String args[]) {
public static void main(String[] args) {
AdjacencyMatrixGraph graph = new AdjacencyMatrixGraph(10);
graph.addEdge(1, 2);
graph.addEdge(1, 5);

14
src/main/java/com/thealgorithms/datastructures/graphs/PrimMST.java
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@ -12,7 +12,7 @@ class PrimMST {
// A utility function to find the vertex with minimum key
// value, from the set of vertices not yet included in MST
int minKey(int key[], Boolean mstSet[]) {
int minKey(int[] key, Boolean[] mstSet) {
// Initialize min value
int min = Integer.MAX_VALUE, min_index = -1;
@ -28,7 +28,7 @@ class PrimMST {
// A utility function to print the constructed MST stored in
// parent[]
void printMST(int parent[], int n, int graph[][]) {
void printMST(int[] parent, int n, int[][] graph) {
System.out.println("Edge Weight");
for (int i = 1; i < V; i++) {
System.out.println(
@ -39,15 +39,15 @@ class PrimMST {
// Function to construct and print MST for a graph represented
// using adjacency matrix representation
void primMST(int graph[][]) {
void primMST(int[][] graph) {
// Array to store constructed MST
int parent[] = new int[V];
int[] parent = new int[V];
// Key values used to pick minimum weight edge in cut
int key[] = new int[V];
int[] key = new int[V];
// To represent set of vertices not yet included in MST
Boolean mstSet[] = new Boolean[V];
Boolean[] mstSet = new Boolean[V];
// Initialize all keys as INFINITE
for (int i = 0; i < V; i++) {
@ -103,7 +103,7 @@ class PrimMST {
(3)-------(4)
9 */
PrimMST t = new PrimMST();
int graph[][] = new int[][] {
int[][] graph = new int[][] {
{ 0, 2, 0, 6, 0 },
{ 2, 0, 3, 8, 5 },
{ 0, 3, 0, 0, 7 },

28
src/main/java/com/thealgorithms/datastructures/graphs/TarjansAlgorithm.java
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@ -68,15 +68,15 @@ public class TarjansAlgorithm {
// lowTime: indicates the earliest visited vertex (the vertex with minimum insertion time) that can
// be reached from a subtree rooted with a particular node.
int lowTime[] = new int[V];
int insertionTime[] = new int[V];
int[] lowTime = new int[V];
int[] insertionTime = new int[V];
for (int i = 0; i < V; i++) {
insertionTime[i] = -1;
lowTime[i] = -1;
}
// To check if element is present in stack
boolean isInStack[] = new boolean[V];
boolean[] isInStack = new boolean[V];
// Store nodes during DFS
Stack<Integer> st = new Stack<Integer>();
@ -89,8 +89,8 @@ public class TarjansAlgorithm {
return SCClist;
}
private void stronglyConnCompsUtil(int u, int lowTime[], int insertionTime[],
boolean isInStack[], Stack<Integer> st, List<List<Integer>> graph) {
private void stronglyConnCompsUtil(int u, int[] lowTime, int[] insertionTime,
boolean[] isInStack, Stack<Integer> st, List<List<Integer>> graph) {
// Initialize insertion time and lowTime value of current node
insertionTime[u] = Time;
@ -101,22 +101,16 @@ public class TarjansAlgorithm {
isInStack[u] = true;
st.push(u);
int n;
// Go through all vertices adjacent to this
Iterator<Integer> i = graph.get(u).iterator();
while (i.hasNext()) {
n = i.next();
for (Integer vertex : graph.get(u)) {
//If the adjacent node is unvisited, do DFS
if (insertionTime[n] == -1) {
stronglyConnCompsUtil(n, lowTime, insertionTime, isInStack, st, graph);
if (insertionTime[vertex] == -1) {
stronglyConnCompsUtil(vertex, lowTime, insertionTime, isInStack, st, graph);
//update lowTime for the current node comparing lowtime of adj node
lowTime[u] = Math.min(lowTime[u], lowTime[n]);
} else if (isInStack[n]) {
lowTime[u] = Math.min(lowTime[u], lowTime[vertex]);
} else if (isInStack[vertex]) {
//If adj node is in stack, update low
lowTime[u] = Math.min(lowTime[u], insertionTime[n]);
lowTime[u] = Math.min(lowTime[u], insertionTime[vertex]);
}
}
//If lowtime and insertion time are same, current node is the head of an SCC

2
src/main/java/com/thealgorithms/datastructures/lists/DoublyLinkedList.java
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@ -133,7 +133,7 @@ class Link {
*
* @param args Command line arguments
*/
public static void main(String args[]) {
public static void main(String[] args) {
DoublyLinkedList myList = new DoublyLinkedList();
LinkOperations linkOperations = new LinkOperations();
linkOperations.insertHead(13, myList);

8
src/main/java/com/thealgorithms/datastructures/stacks/MaximumMinimumWindow.java
View File

@ -39,8 +39,8 @@ public class MaximumMinimumWindow {
*/
public static int[] calculateMaxOfMin(int[] arr, int n) {
Stack<Integer> s = new Stack<>();
int left[] = new int[n + 1];
int right[] = new int[n + 1];
int[] left = new int[n + 1];
int[] right = new int[n + 1];
for (int i = 0; i < n; i++) {
left[i] = -1;
right[i] = n;
@ -74,7 +74,7 @@ public class MaximumMinimumWindow {
s.push(i);
}
int ans[] = new int[n + 1];
int[] ans = new int[n + 1];
for (int i = 0; i <= n; i++) {
ans[i] = 0;
}
@ -96,7 +96,7 @@ public class MaximumMinimumWindow {
return ans;
}
public static void main(String args[]) {
public static void main(String[] args) {
int[] arr = new int[] { 10, 20, 30, 50, 10, 70, 30 };
int[] target = new int[] { 70, 30, 20, 10, 10, 10, 10 };
int[] res = calculateMaxOfMin(arr, arr.length);

2
src/main/java/com/thealgorithms/datastructures/stacks/PostfixToInfix.java
View File

@ -118,7 +118,7 @@ public class PostfixToInfix {
return infix;
}
public static void main(String args[]) {
public static void main(String[] args) {
assert getPostfixToInfix("ABC+/").equals("(A/(B+C))");
assert getPostfixToInfix("AB+CD+*").equals("((A+B)*(C+D))");
assert getPostfixToInfix("AB+C+D+").equals("(((A+B)+C)+D)");

2
src/main/java/com/thealgorithms/datastructures/stacks/ReverseStack.java
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@ -10,7 +10,7 @@ import java.util.Stack;
*/
public class ReverseStack {
public static void main(String args[]) {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.println(
"Enter the number of elements you wish to insert in the stack"

2
src/main/java/com/thealgorithms/datastructures/trees/FenwickTree.java
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@ -3,7 +3,7 @@ package com.thealgorithms.datastructures.trees;
public class FenwickTree {
private int n;
private int fen_t[];
private int[] fen_t;
/* Constructor which takes the size of the array as a parameter */
public FenwickTree(int n) {

6
src/main/java/com/thealgorithms/datastructures/trees/SegmentTree.java
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@ -2,12 +2,12 @@ package com.thealgorithms.datastructures.trees;
public class SegmentTree {
private int seg_t[];
private int[] seg_t;
private int n;
private int arr[];
private int[] arr;
/* Constructor which takes the size of the array and the array as a parameter*/
public SegmentTree(int n, int arr[]) {
public SegmentTree(int n, int[] arr) {
this.n = n;
int x = (int) (Math.ceil(Math.log(n) / Math.log(2)));
int seg_size = 2 * (int) Math.pow(2, x) - 1;

2
src/main/java/com/thealgorithms/devutils/searches/MatrixSearchAlgorithm.java
View File

@ -12,5 +12,5 @@ public interface MatrixSearchAlgorithm {
* @param <T> Comparable type
* @return array containing the first found coordinates of the element
*/
<T extends Comparable<T>> int[] find(T matrix[][], T key);
<T extends Comparable<T>> int[] find(T[][] matrix, T key);
}

2
src/main/java/com/thealgorithms/devutils/searches/SearchAlgorithm.java
View File

@ -12,5 +12,5 @@ public interface SearchAlgorithm {
* @param <T> Comparable type
* @return first found index of the element
*/
<T extends Comparable<T>> int find(T array[], T key);
<T extends Comparable<T>> int find(T[] array, T key);
}

2
src/main/java/com/thealgorithms/dynamicprogramming/BoardPath.java
View File

@ -52,7 +52,7 @@ public class BoardPath {
return count;
}
public static int bpRS(int curr, int end, int strg[]) {
public static int bpRS(int curr, int end, int[] strg) {
if (curr == end) {
return 1;
} else if (curr > end) {

8
src/main/java/com/thealgorithms/dynamicprogramming/BruteForceKnapsack.java
View File

@ -6,7 +6,7 @@ public class BruteForceKnapsack {
// Returns the maximum value that
// can be put in a knapsack of
// capacity W
static int knapSack(int W, int wt[], int val[], int n) {
static int knapSack(int W, int[] wt, int[] val, int n) {
// Base Case
if (n == 0 || W == 0) {
return 0;
@ -29,9 +29,9 @@ public class BruteForceKnapsack {
}
// Driver code
public static void main(String args[]) {
int val[] = new int[] { 60, 100, 120 };
int wt[] = new int[] { 10, 20, 30 };
public static void main(String[] args) {
int[] val = new int[] { 60, 100, 120 };
int[] wt = new int[] { 10, 20, 30 };
int W = 50;
int n = val.length;
System.out.println(knapSack(W, wt, val, n));

2
src/main/java/com/thealgorithms/dynamicprogramming/CatalanNumber.java
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@ -23,7 +23,7 @@ public class CatalanNumber {
*/
static long findNthCatalan(int n) {
// Array to store the results of subproblems i.e Catalan numbers from [1...n-1]
long catalanArray[] = new long[n + 1];
long[] catalanArray = new long[n + 1];
// Initialising C₀ = 1 and C₁ = 1
catalanArray[0] = 1;

4
src/main/java/com/thealgorithms/dynamicprogramming/CountFriendsPairing.java
View File

@ -15,8 +15,8 @@ package com.thealgorithms.dynamicprogramming;
public class CountFriendsPairing {
public static boolean countFriendsPairing(int n, int a[]) {
int dp[] = new int[n + 1];
public static boolean countFriendsPairing(int n, int[] a) {
int[] dp = new int[n + 1];
// array of n+1 size is created
dp[0] = 1;
// since 1st index position value is fixed so it's marked as 1

10
src/main/java/com/thealgorithms/dynamicprogramming/DyanamicProgrammingKnapsack.java
View File

@ -5,9 +5,9 @@ package com.thealgorithms.dynamicprogramming;
public class DyanamicProgrammingKnapsack {
// Returns the maximum value that can
// be put in a knapsack of capacity W
static int knapSack(int W, int wt[], int val[], int n) {
static int knapSack(int W, int[] wt, int[] val, int n) {
int i, w;
int K[][] = new int[n + 1][W + 1];
int[][] K = new int[n + 1][W + 1];
// Build table K[][] in bottom up manner
for (i = 0; i <= n; i++) {
@ -26,9 +26,9 @@ public class DyanamicProgrammingKnapsack {
}
// Driver code
public static void main(String args[]) {
int val[] = new int[] { 60, 100, 120 };
int wt[] = new int[] { 10, 20, 30 };
public static void main(String[] args) {
int[] val = new int[] { 60, 100, 120 };
int[] wt = new int[] { 10, 20, 30 };
int W = 50;
int n = val.length;
System.out.println(knapSack(W, wt, val, n));

2
src/main/java/com/thealgorithms/dynamicprogramming/EggDropping.java
View File

@ -40,7 +40,7 @@ public class EggDropping {
return eggFloor[n][m];
}
public static void main(String args[]) {
public static void main(String[] args) {
int n = 2, m = 4;
// result outputs min no. of trials in worst case for n eggs and m floors
int result = minTrials(n, m);

2
src/main/java/com/thealgorithms/dynamicprogramming/KadaneAlgorithm.java
View File

@ -7,7 +7,7 @@ package com.thealgorithms.dynamicprogramming;
public class KadaneAlgorithm {
public static boolean max_Sum(int a[], int predicted_answer) {
public static boolean max_Sum(int[] a, int predicted_answer) {
int sum = a[0], running_sum = 0;
for (int k : a) {
running_sum = running_sum + k;

10
src/main/java/com/thealgorithms/dynamicprogramming/Knapsack.java
View File

@ -5,13 +5,13 @@ package com.thealgorithms.dynamicprogramming;
*/
public class Knapsack {
private static int knapSack(int W, int wt[], int val[], int n)
private static int knapSack(int W, int[] wt, int[] val, int n)
throws IllegalArgumentException {
if (wt == null || val == null) {
throw new IllegalArgumentException();
}
int i, w;
int rv[][] = new int[n + 1][W + 1]; // rv means return value
int[][] rv = new int[n + 1][W + 1]; // rv means return value
// Build table rv[][] in bottom up manner
for (i = 0; i <= n; i++) {
@ -34,9 +34,9 @@ public class Knapsack {
}
// Driver program to test above function
public static void main(String args[]) {
int val[] = new int[] { 50, 100, 130 };
int wt[] = new int[] { 10, 20, 40 };
public static void main(String[] args) {
int[] val = new int[] { 50, 100, 130 };
int[] wt = new int[] { 10, 20, 40 };
int W = 50;
System.out.println(knapSack(W, wt, val, val.length));
}

1
src/main/java/com/thealgorithms/dynamicprogramming/KnapsackMemoization.java
View File

@ -28,7 +28,6 @@ public class KnapsackMemoization {
int solveKnapsackRecursive(int capacity, int[] weights,
int[] profits, int numOfItems,
int[][] dpTable) {
// Base condition
if (numOfItems == 0 || capacity == 0) {
return 0;

6
src/main/java/com/thealgorithms/dynamicprogramming/LongestAlternatingSubsequence.java
View File

@ -13,7 +13,7 @@ package com.thealgorithms.dynamicprogramming;
public class LongestAlternatingSubsequence {
/* Function to return longest alternating subsequence length*/
static int AlternatingLength(int arr[], int n) {
static int AlternatingLength(int[] arr, int n) {
/*
las[i][0] = Length of the longest
@ -28,7 +28,7 @@ public class LongestAlternatingSubsequence {
element
*/
int las[][] = new int[n][2]; // las = LongestAlternatingSubsequence
int[][] las = new int[n][2]; // las = LongestAlternatingSubsequence
for (int i = 0; i < n; i++) {
las[i][0] = las[i][1] = 1;
@ -61,7 +61,7 @@ public class LongestAlternatingSubsequence {
}
public static void main(String[] args) {
int arr[] = { 10, 22, 9, 33, 49, 50, 31, 60 };
int[] arr = { 10, 22, 9, 33, 49, 50, 31, 60 };
int n = arr.length;
System.out.println(
"Length of Longest " +

6
src/main/java/com/thealgorithms/dynamicprogramming/LongestIncreasingSubsequence.java
View File

@ -11,7 +11,7 @@ public class LongestIncreasingSubsequence {
Scanner sc = new Scanner(System.in);
int n = sc.nextInt();
int arr[] = new int[n];
int[] arr = new int[n];
for (int i = 0; i < n; i++) {
arr[i] = sc.nextInt();
}
@ -70,9 +70,9 @@ public class LongestIncreasingSubsequence {
* @author Alon Firestein (https://github.com/alonfirestein)
*/
// A function for finding the length of the LIS algorithm in O(nlogn) complexity.
public static int findLISLen(int a[]) {
public static int findLISLen(int[] a) {
int size = a.length;
int arr[] = new int[size];
int[] arr = new int[size];
arr[0] = a[0];
int lis = 1;
for (int i = 1; i < size; i++) {

2
src/main/java/com/thealgorithms/dynamicprogramming/LongestPalindromicSubstring.java
View File

@ -20,7 +20,7 @@ public class LongestPalindromicSubstring {
if (input == null || input.length() == 0) {
return input;
}
boolean arr[][] = new boolean[input.length()][input.length()];
boolean[][] arr = new boolean[input.length()][input.length()];
int start = 0, end = 0;
for (int g = 0; g < input.length(); g++) {
for (int i = 0, j = g; j < input.length(); i++, j++) {

8
src/main/java/com/thealgorithms/dynamicprogramming/MatrixChainRecursiveTopDownMemoisation.java
View File

@ -8,9 +8,9 @@ package com.thealgorithms.dynamicprogramming;
// minimizes the number of scalar multiplications.
public class MatrixChainRecursiveTopDownMemoisation {
static int Memoized_Matrix_Chain(int p[]) {
static int Memoized_Matrix_Chain(int[] p) {
int n = p.length;
int m[][] = new int[n][n];
int[][] m = new int[n][n];
for (int i = 0; i < n; i++) {
for (int j = 0; j < n; j++) {
m[i][j] = Integer.MAX_VALUE;
@ -19,7 +19,7 @@ public class MatrixChainRecursiveTopDownMemoisation {
return Lookup_Chain(m, p, 1, n - 1);
}
static int Lookup_Chain(int m[][], int p[], int i, int j) {
static int Lookup_Chain(int[][] m, int[] p, int i, int j) {
if (i == j) {
m[i][j] = 0;
return m[i][j];
@ -43,7 +43,7 @@ public class MatrixChainRecursiveTopDownMemoisation {
// in this code we are taking the example of 4 matrixes whose orders are 1x2,2x3,3x4,4x5 respectively
// output should be Minimum number of multiplications is 38
public static void main(String[] args) {
int arr[] = { 1, 2, 3, 4, 5 };
int[] arr = { 1, 2, 3, 4, 5 };
System.out.println(
"Minimum number of multiplications is " + Memoized_Matrix_Chain(arr)
);

2
src/main/java/com/thealgorithms/dynamicprogramming/NewManShanksPrime.java
View File

@ -10,7 +10,7 @@ package com.thealgorithms.dynamicprogramming;
public class NewManShanksPrime {
public static boolean nthManShanksPrime(int n, int expected_answer) {
int a[] = new int[n + 1];
int[] a = new int[n + 1];
// array of n+1 size is initialized
a[0] = a[1] = 1;
// The 0th and 1st index position values are fixed. They are initialized as 1

2
src/main/java/com/thealgorithms/dynamicprogramming/RegexMatching.java
View File

@ -134,7 +134,7 @@ public class RegexMatching {
// Method 4: Bottom-Up DP(Tabulation)
// Time Complexity=0(N*M) Space Complexity=0(N*M)
static boolean regexBU(String src, String pat) {
boolean strg[][] = new boolean[src.length() + 1][pat.length() + 1];
boolean[][] strg = new boolean[src.length() + 1][pat.length() + 1];
strg[src.length()][pat.length()] = true;
for (int row = src.length(); row >= 0; row--) {
for (int col = pat.length() - 1; col >= 0; col--) {

4
src/main/java/com/thealgorithms/dynamicprogramming/RodCutting.java
View File

@ -8,7 +8,7 @@ package com.thealgorithms.dynamicprogramming;
public class RodCutting {
private static int cutRod(int[] price, int n) {
int val[] = new int[n + 1];
int[] val = new int[n + 1];
val[0] = 0;
for (int i = 1; i <= n; i++) {
@ -24,7 +24,7 @@ public class RodCutting {
}
// main function to test
public static void main(String args[]) {
public static void main(String[] args) {
int[] arr = new int[] { 2, 5, 13, 19, 20 };
int result = cutRod(arr, arr.length);
System.out.println("Maximum Obtainable Value is " + result);

2
src/main/java/com/thealgorithms/dynamicprogramming/ShortestCommonSupersequenceLength.java
View File

@ -45,7 +45,7 @@ class ShortestSuperSequence {
}
// Driver code
public static void main(String args[]) {
public static void main(String[] args) {
String X = "AGGTAB";
String Y = "GXTXAYB";

4
src/main/java/com/thealgorithms/dynamicprogramming/SubsetCount.java
View File

@ -49,11 +49,11 @@ public class SubsetCount {
*/
public int getCountSO(int[] arr, int target){
int n = arr.length;
int prev[]=new int[target+1];
int[] prev =new int[target+1];
prev[0] =1;
if(arr[0]<=target) prev[arr[0]] = 1;
for(int ind = 1; ind<n; ind++){
int cur[]=new int[target+1];
int[] cur =new int[target+1];
cur[0]=1;
for(int t= 1; t<=target; t++){
int notTaken = prev[t];

2
src/main/java/com/thealgorithms/dynamicprogramming/UniquePaths.java
View File

@ -31,7 +31,7 @@ public class UniquePaths {
// The above method runs in O(n) time
public static boolean uniquePaths2(int m, int n, int ans) {
int dp[][] = new int[m][n];
int[][] dp = new int[m][n];
for (int i = 0; i < m; i++) {
dp[i][0] = 1;
}

6
src/main/java/com/thealgorithms/maths/DeterminantOfMatrix.java
View File

@ -10,12 +10,12 @@ public class DeterminantOfMatrix {
// Determinant calculator
//@return determinant of the input matrix
static int determinant(int a[][], int n) {
static int determinant(int[][] a, int n) {
int det = 0, sign = 1, p = 0, q = 0;
if (n == 1) {
det = a[0][0];
} else {
int b[][] = new int[n - 1][n - 1];
int[][] b = new int[n - 1][n - 1];
for (int x = 0; x < n; x++) {
p = 0;
q = 0;
@ -44,7 +44,7 @@ public class DeterminantOfMatrix {
System.out.println("Enter matrix size (Square matrix only)");
int n = in.nextInt();
System.out.println("Enter matrix");
int a[][] = new int[n][n];
int[][] a = new int[n][n];
for (int i = 0; i < n; i++) {
for (int j = 0; j < n; j++) {
a[i][j] = in.nextInt();

2
src/main/java/com/thealgorithms/maths/KrishnamurthyNumber.java
View File

@ -40,7 +40,7 @@ public class KrishnamurthyNumber {
}
}
public static void main(String args[]) throws IOException {
public static void main(String[] args) throws IOException {
BufferedReader br = new BufferedReader(
new InputStreamReader(System.in)
);

2
src/main/java/com/thealgorithms/maths/NonRepeatingElement.java
View File

@ -19,7 +19,7 @@ public class NonRepeatingElement {
System.out.println("Array should contain even number of elements");
return;
}
int arr[] = new int[n];
int[] arr = new int[n];
System.out.println(
"Enter " +

2
src/main/java/com/thealgorithms/maths/TrinomialTriangle.java
View File

@ -39,7 +39,7 @@ public class TrinomialTriangle {
}
}
public static void main(String argc[]) {
public static void main(String[] argc) {
int n = 6;
printTrinomial(n);
}

2
src/main/java/com/thealgorithms/misc/ColorContrastRatio.java
View File

@ -117,7 +117,7 @@ public class ColorContrastRatio {
4.878363954846178 : "Test 6 Failed - Incorrect contrast ratio.";
}
public static void main(String args[]) {
public static void main(String[] args) {
test();
}
}

18
src/main/java/com/thealgorithms/misc/InverseOfMatrix.java
View File

@ -12,11 +12,11 @@ import java.util.Scanner;
*/
public class InverseOfMatrix {
public static void main(String argv[]) {
public static void main(String[] argv) {
Scanner input = new Scanner(System.in);
System.out.println("Enter the matrix size (Square matrix only): ");
int n = input.nextInt();
double a[][] = new double[n][n];
double[][] a = new double[n][n];
System.out.println("Enter the elements of matrix: ");
for (int i = 0; i < n; i++) {
for (int j = 0; j < n; j++) {
@ -24,7 +24,7 @@ public class InverseOfMatrix {
}
}
double d[][] = invert(a);
double[][] d = invert(a);
System.out.println();
System.out.println("The inverse is: ");
for (int i = 0; i < n; ++i) {
@ -36,11 +36,11 @@ public class InverseOfMatrix {
input.close();
}
public static double[][] invert(double a[][]) {
public static double[][] invert(double[][] a) {
int n = a.length;
double x[][] = new double[n][n];
double b[][] = new double[n][n];
int index[] = new int[n];
double[][] x = new double[n][n];
double[][] b = new double[n][n];
int[] index = new int[n];
for (int i = 0; i < n; ++i) {
b[i][i] = 1;
}
@ -73,9 +73,9 @@ public class InverseOfMatrix {
// Method to carry out the partial-pivoting Gaussian
// elimination. Here index[] stores pivoting order.
public static void gaussian(double a[][], int index[]) {
public static void gaussian(double[][] a, int[] index) {
int n = index.length;
double c[] = new double[n];
double[] c = new double[n];
// Initialize the index
for (int i = 0; i < n; ++i) {

2
src/main/java/com/thealgorithms/misc/MedianOfRunningArray.java
View File

@ -44,7 +44,7 @@ public class MedianOfRunningArray {
*/
MedianOfRunningArray p = new MedianOfRunningArray();
int arr[] = { 10, 7, 4, 9, 2, 3, 11, 17, 14 };
int[] arr = { 10, 7, 4, 9, 2, 3, 11, 17, 14 };
for (int i = 0; i < 9; i++) {
p.insert(arr[i]);
System.out.print(p.median() + " ");

4
src/main/java/com/thealgorithms/misc/Sort012D.java
View File

@ -13,10 +13,10 @@ import java.util.*;
*/
public class Sort012D {
public static void main(String args[]) {
public static void main(String[] args) {
Scanner np = new Scanner(System.in);
int n = np.nextInt();
int a[] = new int[n];
int[] a = new int[n];
for (int i = 0; i < n; i++) {
a[i] = np.nextInt();
}

4
src/main/java/com/thealgorithms/misc/ThreeSumProblem.java
View File

@ -4,14 +4,14 @@ import java.util.*;
public class ThreeSumProblem {
public static void main(String args[]) {
public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
System.out.print("Enter the target sum ");
int ts = scan.nextInt();
System.out.print("Enter the number of elements in the array ");
int n = scan.nextInt();
System.out.println("Enter all your array elements:");
int arr[] = new int[n];
int[] arr = new int[n];
for (int i = 0; i < n; i++) {
arr[i] = scan.nextInt();
}

10
src/main/java/com/thealgorithms/misc/TwoSumProblem.java
View File

@ -5,14 +5,14 @@ import java.util.stream.Collectors;
public class TwoSumProblem {
public static void main(String args[]) {
public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
System.out.print("Enter the target sum ");
int ts = scan.nextInt();
System.out.print("Enter the number of elements in the array ");
int n = scan.nextInt();
System.out.println("Enter all your array elements:");
int arr[] = new int[n];
int[] arr = new int[n];
for (int i = 0; i < n; i++) {
arr[i] = scan.nextInt();
}
@ -34,7 +34,7 @@ public class TwoSumProblem {
public int[] BruteForce(int[] nums, int target) {
//Brute Force Approach
int ans[] = new int[2];
int[] ans = new int[2];
for (int i = 0; i < nums.length; i++) {
for (int j = i + 1; j < nums.length; j++) {
if (nums[i] + nums[j] == target) {
@ -51,7 +51,7 @@ public class TwoSumProblem {
public int[] TwoPointer(int[] nums, int target) {
// HashMap Approach
int ans[] = new int[2];
int[] ans = new int[2];
HashMap<Integer, Integer> hm = new HashMap<Integer, Integer>();
for (int i = 0; i < nums.length; i++) {
hm.put(i, nums[i]);
@ -90,7 +90,7 @@ public class TwoSumProblem {
public int[] HashMap(int[] nums, int target) {
//Using Hashmaps
int ans[] = new int[2];
int[] ans = new int[2];
HashMap<Integer, Integer> hm = new HashMap<Integer, Integer>();
for (int i = 0; i < nums.length; i++) {
hm.put(nums[i], i);

22
src/main/java/com/thealgorithms/others/BankersAlgorithm.java
View File

@ -26,9 +26,9 @@ public class BankersAlgorithm {
* This method finds the need of each process
*/
static void calculateNeed(
int needArray[][],
int maxArray[][],
int allocationArray[][],
int[][] needArray,
int[][] maxArray,
int[][] allocationArray,
int totalProcess,
int totalResources
) {
@ -55,10 +55,10 @@ public class BankersAlgorithm {
* @return boolean if the system is in safe state or not
*/
static boolean checkSafeSystem(
int processes[],
int availableArray[],
int maxArray[][],
int allocationArray[][],
int[] processes,
int[] availableArray,
int[][] maxArray,
int[][] allocationArray,
int totalProcess,
int totalResources
) {
@ -144,14 +144,14 @@ public class BankersAlgorithm {
System.out.println("Enter total number of resources");
numberOfResources = sc.nextInt();
int processes[] = new int[numberOfProcesses];
int[] processes = new int[numberOfProcesses];
for (int i = 0; i < numberOfProcesses; i++) {
processes[i] = i;
}
System.out.println("--Enter the availability of--");
int availableArray[] = new int[numberOfResources];
int[] availableArray = new int[numberOfResources];
for (int i = 0; i < numberOfResources; i++) {
System.out.println("resource " + i + ": ");
availableArray[i] = sc.nextInt();
@ -159,7 +159,7 @@ public class BankersAlgorithm {
System.out.println("--Enter the maximum matrix--");
int maxArray[][] = new int[numberOfProcesses][numberOfResources];
int[][] maxArray = new int[numberOfProcesses][numberOfResources];
for (int i = 0; i < numberOfProcesses; i++) {
System.out.println("For process " + i + ": ");
for (int j = 0; j < numberOfResources; j++) {
@ -172,7 +172,7 @@ public class BankersAlgorithm {
System.out.println("--Enter the allocation matrix--");
int allocationArray[][] = new int[numberOfProcesses][numberOfResources];
int[][] allocationArray = new int[numberOfProcesses][numberOfResources];
for (int i = 0; i < numberOfProcesses; i++) {
System.out.println("For process " + i + ": ");
for (int j = 0; j < numberOfResources; j++) {

4
src/main/java/com/thealgorithms/others/BoyerMoore.java
View File

@ -35,10 +35,10 @@ public class BoyerMoore {
return -1;
}
public static void main(String args[]) {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
int n = input.nextInt();
int a[] = new int[n];
int[] a = new int[n];
for (int i = 0; i < n; i++) {
a[i] = input.nextInt();
}

2
src/main/java/com/thealgorithms/others/BrianKernighanAlgorithm.java
View File

@ -38,7 +38,7 @@ public class BrianKernighanAlgorithm {
/**
* @param args : command line arguments
*/
public static void main(String args[]) {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int num = sc.nextInt();
int setBitCount = countSetBits(num);

4
src/main/java/com/thealgorithms/others/CRCAlgorithm.java
View File

@ -158,9 +158,7 @@ public class CRCAlgorithm {
}
dividedMessage = (ArrayList<Integer>) x.clone();
if (!check) {
for (int z : dividedMessage) {
message.add(z);
}
message.addAll(dividedMessage);
} else {
if (dividedMessage.contains(1) && messageChanged) {
wrongMessCaught++;

4
src/main/java/com/thealgorithms/others/GuassLegendre.java
View File

@ -21,7 +21,7 @@ public class GuassLegendre {
double a = 1, b = Math.pow(2, -0.5), t = 0.25, p = 1;
for (int i = 0; i < l; ++i) {
double temp[] = update(a, b, t, p);
double[] temp = update(a, b, t, p);
a = temp[0];
b = temp[1];
t = temp[2];
@ -32,7 +32,7 @@ public class GuassLegendre {
}
static double[] update(double a, double b, double t, double p) {
double values[] = new double[4];
double[] values = new double[4];
values[0] = (a + b) / 2;
values[1] = Math.sqrt(a * b);
values[2] = t - p * Math.pow(a - values[0], 2);

2
src/main/java/com/thealgorithms/others/Implementing_auto_completing_features_using_trie.java
View File

@ -10,7 +10,7 @@ class Trieac {
// Trie node
static class TrieNode {
TrieNode children[] = new TrieNode[ALPHABET_SIZE];
TrieNode[] children = new TrieNode[ALPHABET_SIZE];
// isWordEnd is true if the node represents
// end of a word

4
src/main/java/com/thealgorithms/others/InsertDeleteInArray.java
View File

@ -8,7 +8,7 @@ public class InsertDeleteInArray {
Scanner s = new Scanner(System.in); // Input statement
System.out.println("Enter the size of the array");
int size = s.nextInt();
int a[] = new int[size];
int[] a = new int[size];
int i;
// To enter the initial elements
@ -25,7 +25,7 @@ public class InsertDeleteInArray {
System.out.println("Enter the element to be inserted");
int ins = s.nextInt();
int size2 = size + 1;
int b[] = new int[size2];
int[] b = new int[size2];
for (i = 0; i < size2; i++) {
if (i <= insert_pos) {
b[i] = a[i];

2
src/main/java/com/thealgorithms/others/Krishnamurthy.java
View File

@ -12,7 +12,7 @@ class Krishnamurthy {
return p;
}
public static void main(String args[]) {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int a, b, s = 0;
System.out.print("Enter the number : ");

8
src/main/java/com/thealgorithms/others/PageRank.java
View File

@ -4,7 +4,7 @@ import java.util.*;
class PageRank {
public static void main(String args[]) {
public static void main(String[] args) {
int nodes, i, j;
Scanner in = new Scanner(System.in);
System.out.print("Enter the Number of WebPages: ");
@ -24,14 +24,14 @@ class PageRank {
p.calc(nodes);
}
public int path[][] = new int[10][10];
public double pagerank[] = new double[10];
public int[][] path = new int[10][10];
public double[] pagerank = new double[10];
public void calc(double totalNodes) {
double InitialPageRank;
double OutgoingLinks = 0;
double DampingFactor = 0.85;
double TempPageRank[] = new double[10];
double[] TempPageRank = new double[10];
int ExternalNodeNumber;
int InternalNodeNumber;
int k = 1; // For Traversing

2
src/main/java/com/thealgorithms/others/PasswordGen.java
View File

@ -13,7 +13,7 @@ import java.util.Random;
*/
class PasswordGen {
public static void main(String args[]) {
public static void main(String[] args) {
String password = generatePassword(8, 16);
System.out.print("Password: " + password);
}

2
src/main/java/com/thealgorithms/others/QueueUsingTwoStacks.java
View File

@ -119,7 +119,7 @@ public class QueueUsingTwoStacks {
*
* @param args Command line arguments
*/
public static void main(String args[]) {
public static void main(String[] args) {
QueueWithStack myQueue = new QueueWithStack();
myQueue.insert(1);
System.out.println(myQueue.peekBack()); // Will print 1

4
src/main/java/com/thealgorithms/others/RotateMatriceBy90Degree.java
View File

@ -29,7 +29,7 @@ class Rotate_by_90_degree {
sc.close();
}
static void printMatrix(int arr[][]) {
static void printMatrix(int[][] arr) {
for (int i = 0; i < arr.length; i++) {
for (int j = 0; j < arr[0].length; j++) {
System.out.print(arr[i][j] + " ");
@ -44,7 +44,7 @@ class Rotate_by_90_degree {
*/
class Rotate {
static void rotate(int a[][]) {
static void rotate(int[][] a) {
int n = a.length;
for (int i = 0; i < n; i++) {
for (int j = 0; j < n; j++) {

13
src/main/java/com/thealgorithms/others/StackPostfixNotation.java
View File

@ -24,14 +24,11 @@ public class StackPostfixNotation {
int num1 = s.pop();
String op = tokens.next();
if (op.equals("+")) {
s.push(num1 + num2);
} else if (op.equals("-")) {
s.push(num1 - num2);
} else if (op.equals("*")) {
s.push(num1 * num2);
} else {
s.push(num1 / num2);
switch (op) {
case "+" -> s.push(num1 + num2);
case "-" -> s.push(num1 - num2);
case "*" -> s.push(num1 * num2);
default -> s.push(num1 / num2);
}
// "+", "-", "*", "/"
}

2
src/main/java/com/thealgorithms/others/Sudoku.java
View File

@ -100,7 +100,7 @@ class Sudoku {
}
// Driver Code
public static void main(String args[]) {
public static void main(String[] args) {
int[][] board = new int[][] {
{ 3, 0, 6, 5, 0, 8, 4, 0, 0 },
{ 5, 2, 0, 0, 0, 0, 0, 0, 0 },

4
src/main/java/com/thealgorithms/others/ThreeSum.java
View File

@ -18,11 +18,11 @@ import java.util.Scanner;
*/
class ThreeSum {
public static void main(String args[]) {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
int n = sc.nextInt(); // Length of an array
int a[] = new int[n];
int[] a = new int[n];
for (int i = 0; i < n; i++) {
a[i] = sc.nextInt();

2
src/main/java/com/thealgorithms/searches/BinarySearch.java
View File

@ -42,7 +42,7 @@ class BinarySearch implements SearchAlgorithm {
* @return the location of the key
*/
private <T extends Comparable<T>> int search(
T array[],
T[] array,
T key,
int left,
int right

2
src/main/java/com/thealgorithms/searches/InterpolationSearch.java
View File

@ -21,7 +21,7 @@ class InterpolationSearch {
* @param key is a value what shoulb be found in the array
* @return an index if the array contains the key unless -1
*/
public int find(int array[], int key) {
public int find(int[] array, int key) {
// Find indexes of two corners
int start = 0, end = (array.length - 1);

4
src/main/java/com/thealgorithms/searches/KMPSearch.java
View File

@ -8,7 +8,7 @@ class KMPSearch {
// create lps[] that will hold the longest
// prefix suffix values for pattern
int lps[] = new int[M];
int[] lps = new int[M];
int j = 0; // index for pat[]
// Preprocess the pattern (calculate lps[]
@ -38,7 +38,7 @@ class KMPSearch {
return -1;
}
void computeLPSArray(String pat, int M, int lps[]) {
void computeLPSArray(String pat, int M, int[] lps) {
// length of the previous longest prefix suffix
int len = 0;
int i = 1;

2
src/main/java/com/thealgorithms/searches/OrderAgnosticBinarySearch.java
View File

@ -13,7 +13,7 @@ package com.thealgorithms.searches;
public class OrderAgnosticBinarySearch {
static int BinSearchAlgo(int arr[], int start, int end, int target) {
static int BinSearchAlgo(int[] arr, int start, int end, int target) {
// Checking whether the given array is ascending order
boolean AscOrd = arr[start] < arr[end];

8
src/main/java/com/thealgorithms/searches/SaddlebackSearch.java
View File

@ -28,9 +28,9 @@ public class SaddlebackSearch {
* @return The index(row and column) of the element if found. Else returns
* -1 -1.
*/
private static int[] find(int arr[][], int row, int col, int key) {
private static int[] find(int[][] arr, int row, int col, int key) {
// array to store the answer row and column
int ans[] = { -1, -1 };
int[] ans = { -1, -1 };
if (row < 0 || col >= arr[row].length) {
return ans;
}
@ -54,7 +54,7 @@ public class SaddlebackSearch {
public static void main(String[] args) {
// TODO Auto-generated method stub
Scanner sc = new Scanner(System.in);
int arr[][];
int[][] arr;
int i, j, rows = sc.nextInt(), col = sc.nextInt();
arr = new int[rows][col];
for (i = 0; i < rows; i++) {
@ -64,7 +64,7 @@ public class SaddlebackSearch {
}
int ele = sc.nextInt();
// we start from bottom left corner
int ans[] = find(arr, rows - 1, 0, ele);
int[] ans = find(arr, rows - 1, 0, ele);
System.out.println(ans[0] + " " + ans[1]);
sc.close();
}

2
src/main/java/com/thealgorithms/searches/SquareRootBinarySearch.java
View File

@ -21,7 +21,7 @@ public class SquareRootBinarySearch {
*
* @param args Command line arguments
*/
public static void main(String args[]) {
public static void main(String[] args) {
Scanner sc = new Scanner(System.in);
System.out.print(
"Enter a number you want to calculate square root of : "

2
src/main/java/com/thealgorithms/searches/sortOrderAgnosticBinarySearch.java
View File

@ -1,7 +1,7 @@
package com.thealgorithms.searches;
import java.util.*;
public class sortOrderAgnosticBinarySearch {
public static int find(int arr[],int key){
public static int find(int[] arr, int key){
int start = 0;
int end = arr.length-1;
boolean arrDescending = arr[start]>arr[end]; //checking for Array is in ascending order or descending order.

14
src/main/java/com/thealgorithms/sorts/BitonicSort.java
View File

@ -8,7 +8,7 @@ public class BitonicSort {
ASCENDING or DESCENDING; if (a[i] > a[j]) agrees
with the direction, then a[i] and a[j] are
interchanged. */
void compAndSwap(int a[], int i, int j, int dir) {
void compAndSwap(int[] a, int i, int j, int dir) {
if ((a[i] > a[j] && dir == 1) || (a[i] < a[j] && dir == 0)) {
// Swapping elements
int temp = a[i];
@ -22,7 +22,7 @@ public class BitonicSort {
(means dir=0). The sequence to be sorted starts at
index position low, the parameter cnt is the number
of elements to be sorted.*/
void bitonicMerge(int a[], int low, int cnt, int dir) {
void bitonicMerge(int[] a, int low, int cnt, int dir) {
if (cnt > 1) {
int k = cnt / 2;
for (int i = low; i < low + k; i++) {
@ -37,7 +37,7 @@ public class BitonicSort {
recursively sorting its two halves in opposite sorting
orders, and then calls bitonicMerge to make them in
the same order */
void bitonicSort(int a[], int low, int cnt, int dir) {
void bitonicSort(int[] a, int low, int cnt, int dir) {
if (cnt > 1) {
int k = cnt / 2;
@ -55,12 +55,12 @@ public class BitonicSort {
/*Caller of bitonicSort for sorting the entire array
of length N in ASCENDING order */
void sort(int a[], int N, int up) {
void sort(int[] a, int N, int up) {
bitonicSort(a, 0, N, up);
}
/* A utility function to print array of size n */
static void printArray(int arr[]) {
static void printArray(int[] arr) {
int n = arr.length;
for (int i = 0; i < n; ++i) {
System.out.print(arr[i] + " ");
@ -68,8 +68,8 @@ public class BitonicSort {
System.out.println();
}
public static void main(String args[]) {
int a[] = { 3, 7, 4, 8, 6, 2, 1, 5 };
public static void main(String[] args) {
int[] a = { 3, 7, 4, 8, 6, 2, 1, 5 };
int up = 1;
BitonicSort ob = new BitonicSort();
ob.sort(a, a.length, up);

2
src/main/java/com/thealgorithms/sorts/CycleSort.java
View File

@ -74,7 +74,7 @@ class CycleSort implements SortAlgorithm {
}
public static void main(String[] args) {
Integer arr[] = {
Integer[] arr = {
4,
23,
6,

6
src/main/java/com/thealgorithms/sorts/DNFSort.java
View File

@ -4,7 +4,7 @@ public class DNFSort {
// Sort the input array, the array is assumed to
// have values in {0, 1, 2}
static void sort012(int a[], int arr_size) {
static void sort012(int[] a, int arr_size) {
int low = 0;
int high = arr_size - 1;
int mid = 0, temp = 0;
@ -35,7 +35,7 @@ public class DNFSort {
}
/* Utility function to print array arr[] */
static void printArray(int arr[], int arr_size) {
static void printArray(int[] arr, int arr_size) {
for (int i = 0; i < arr_size; i++) {
System.out.print(arr[i] + " ");
}
@ -44,7 +44,7 @@ public class DNFSort {
/*Driver function to check for above functions*/
public static void main(String[] args) {
int arr[] = { 0, 1, 1, 0, 1, 2, 1, 2, 0, 0, 0, 1 };
int[] arr = { 0, 1, 1, 0, 1, 2, 1, 2, 0, 0, 0, 1 };
int arr_size = arr.length;
sort012(arr, arr_size);
System.out.println("Array after seggregation ");

2
src/main/java/com/thealgorithms/sorts/DualPivotQuickSort.java
View File

@ -96,7 +96,7 @@ public class DualPivotQuickSort implements SortAlgorithm {
* @param args the command line arguments
*/
public static void main(String[] args) {
Integer array[] = { 24, 8, -42, 75, -29, -77, 38, 57 };
Integer[] array = { 24, 8, -42, 75, -29, -77, 38, 57 };
DualPivotQuickSort dualPivotQuickSort = new DualPivotQuickSort();
dualPivotQuickSort.sort(array);
for (int i = 0; i < array.length; i++) {

24
src/main/java/com/thealgorithms/sorts/LinkListSort.java
View File

@ -10,12 +10,12 @@ import java.util.*;
public class LinkListSort {
public static boolean isSorted(int p[], int option) {
public static boolean isSorted(int[] p, int option) {
try (Scanner sc = new Scanner(System.in)) {
}
int a[] = p;
int[] a = p;
// Array is taken as input from test class
int b[] = p;
int[] b = p;
// array similar to a
int ch = option;
// Choice is choosed as any number from 1 to 3 (So the linked list will be
@ -106,7 +106,7 @@ public class LinkListSort {
return false;
}
boolean compare(int a[], int b[]) {
boolean compare(int[] a, int[] b) {
for (int i = 0; i < a.length; i++) {
if (a[i] != b[i])
return false;
@ -137,7 +137,7 @@ class Node {
class Task {
static int a[];
static int[] a;
public Node sortByMergeSort(Node head) {
if (head == null || head.next == null)
@ -171,7 +171,7 @@ class Task {
// It will return a integer type value denoting the number of nodes present
}
void task(int n[], int i, int j) {
void task(int[] n, int i, int j) {
if (i < j) {
int m = (i + j) / 2;
task(n, i, m);
@ -181,9 +181,9 @@ class Task {
}
}
void task1(int n[], int s, int m, int e) {
void task1(int[] n, int s, int m, int e) {
int i = s, k = 0, j = m + 1;
int b[] = new int[e - s + 1];
int[] b = new int[e - s + 1];
while (i <= m && j <= e) {
if (n[j] >= n[i])
b[k++] = n[i++];
@ -210,7 +210,7 @@ class Task1 {
if (head == null || head.next == null)
return head;
int c = count(head);
int a[] = new int[c];
int[] a = new int[c];
// Array of size c is created
a[0] = head.val;
int i;
@ -247,7 +247,7 @@ class Task1 {
class Task2 {
static int a[];
static int[] a;
public Node sortByHeapSort(Node head) {
if (head == null || head.next == null)
@ -280,7 +280,7 @@ class Task2 {
// It will return a integer type value denoting the number of nodes present
}
void task(int n[]) {
void task(int[] n) {
int k = n.length;
for (int i = k / 2 - 1; i >= 0; i--) {
task1(n, k, i);
@ -294,7 +294,7 @@ class Task2 {
}
}
void task1(int n[], int k, int i) {
void task1(int[] n, int k, int i) {
int p = i;
int l = 2 * i + 1;
int r = 2 * i + 2;

10
src/main/java/com/thealgorithms/sorts/MergeSortNoExtraSpace.java
View File

@ -8,12 +8,12 @@ For understanding about mergesort visit :https://www.geeksforgeeks.org/merge-sor
*/
public class MergeSortNoExtraSpace {
public static void call_merge_sort(int a[], int n) {
public static void call_merge_sort(int[] a, int n) {
int maxele = Arrays.stream(a).max().getAsInt() + 1;
merge_sort(a, 0, n - 1, maxele);
}
public static void merge_sort(int a[], int start, int end, int maxele) { //this function divides the array into 2 halves
public static void merge_sort(int[] a, int start, int end, int maxele) { //this function divides the array into 2 halves
if (start < end) {
int mid = (start + end) / 2;
merge_sort(a, start, mid, maxele);
@ -23,7 +23,7 @@ public class MergeSortNoExtraSpace {
}
public static void implement_merge_sort(
int a[],
int[] a,
int start,
int mid,
int end,
@ -58,11 +58,11 @@ public class MergeSortNoExtraSpace {
}
}
public static void main(String args[]) {
public static void main(String[] args) {
Scanner inp = new Scanner(System.in);
System.out.println("Enter array size");
int n = inp.nextInt();
int a[] = new int[n];
int[] a = new int[n];
System.out.println("Enter array elements");
for (int i = 0; i < n; i++) {
a[i] = inp.nextInt();

12
src/main/java/com/thealgorithms/strings/Anagrams.java
View File

@ -50,8 +50,8 @@ public class Anagrams {
if (s.length() != t.length()) {
return false;
} else {
char c[] = s.toCharArray();
char d[] = t.toCharArray();
char[] c = s.toCharArray();
char[] d = t.toCharArray();
Arrays.sort(c);
Arrays.sort(
d
@ -65,8 +65,8 @@ public class Anagrams {
if (a.length() != b.length()) {
return false;
} else {
int m[] = new int[26];
int n[] = new int[26];
int[] m = new int[26];
int[] n = new int[26];
for (char c : a.toCharArray()) {
m[c - 'a']++;
}
@ -90,8 +90,8 @@ public class Anagrams {
}
// this is similar to approach number 2 but here the string is not converted to character array
else {
int a[] = new int[26];
int b[] = new int[26];
int[] a = new int[26];
int[] b = new int[26];
int k = s.length();
for (int i = 0; i < k; i++) {
a[s.charAt(i) - 'a']++;

2
src/main/java/com/thealgorithms/strings/LetterCombinationsOfPhoneNumber.java
View File

@ -44,7 +44,7 @@ public class LetterCombinationsOfPhoneNumber {
// Driver code
public static void main(String[] args) {
int number[] = { 2, 3, 4 };
int[] number = { 2, 3, 4 };
printWords(number);
}
}

14
src/main/java/com/thealgorithms/strings/MyAtoi.java
View File

@ -22,18 +22,8 @@ public static int myAtoi(String s) {
number = "0";
break;
}
switch (ch) {
case '0' -> number += ch;
case '1' -> number += ch;
case '2' -> number += ch;
case '3' -> number += ch;
case '4' -> number += ch;
case '5' -> number += ch;
case '6' -> number += ch;
case '7' -> number += ch;
case '8' -> number += ch;
case '9' -> number += ch;
}
if(ch >= '0' && ch <= '9')
number += ch;
} else if (ch == '-' && !isDigit) {
number += "0";
negative = true;

5
src/main/java/com/thealgorithms/strings/WordLadder.java
View File

@ -48,10 +48,7 @@ class WordLadder {
* if the endword is there. Otherwise, will return the length as 0.
*/
public static int ladderLength(String beginWord, String endWord, List<String> wordList) {
HashSet<String> set = new HashSet();
for (String word : wordList) {
set.add(word);
}
HashSet<String> set = new HashSet(wordList);
if (!set.contains(endWord)) {
return 0;

8
src/test/java/com/thealgorithms/backtracking/AllPathsFromSourceToTargetTest.java
View File

@ -9,7 +9,7 @@ public class AllPathsFromSourceToTargetTest {
@Test
void testForFirstCase() {
int vertices = 4;
int a[][] = {{0,1},{0,2},{0,3},{2,0},{2,1},{1,3}};
int[][] a = {{0,1},{0,2},{0,3},{2,0},{2,1},{1,3}};
int source = 2;
int destination = 3;
List<List<Integer>> list2 = List.of(List.of(2, 0, 1, 3),List.of(2, 0, 3),List.of(2, 1, 3));
@ -21,7 +21,7 @@ public class AllPathsFromSourceToTargetTest {
@Test
void testForSecondCase() {
int vertices = 5;
int a[][] = {{0,1},{0,2},{0,3},{2,0},{2,1},{1,3},{1,4},{3,4},{2,4}};
int[][] a = {{0,1},{0,2},{0,3},{2,0},{2,1},{1,3},{1,4},{3,4},{2,4}};
int source = 0;
int destination = 4;
List<List<Integer>> list2 = List.of(List.of(0, 1, 3, 4),List.of(0, 1, 4),List.of(0, 2, 1, 3, 4),List.of(0, 2, 1, 4),List.of(0, 2, 4),List.of(0, 3, 4));
@ -33,7 +33,7 @@ public class AllPathsFromSourceToTargetTest {
@Test
void testForThirdCase() {
int vertices = 6;
int a[][] = {{1,0},{2,3},{0,4},{1,5},{4,3},{0,2},{0,3},{1,2},{0,5},{3,4},{2,5},{2,4}};
int[][] a = {{1,0},{2,3},{0,4},{1,5},{4,3},{0,2},{0,3},{1,2},{0,5},{3,4},{2,5},{2,4}};
int source = 1;
int destination = 5;
List<List<Integer>> list2 = List.of(List.of(1, 0, 2, 5),List.of(1, 0, 5),List.of(1, 5),List.of(1, 2, 5));
@ -45,7 +45,7 @@ public class AllPathsFromSourceToTargetTest {
@Test
void testForFourthcase() {
int vertices = 3;
int a[][] = {{0,1},{0,2},{1,2}};
int[][] a = {{0,1},{0,2},{1,2}};
int source = 0;
int destination = 2;
List<List<Integer>> list2 = List.of(List.of(0, 1, 2),List.of(0, 2));

20
src/test/java/com/thealgorithms/backtracking/FloodFillTest.java
View File

@ -8,8 +8,8 @@ class FloodFillTest {
@Test
void testForEmptyImage() {
int image[][] = {};
int expected[][] = {};
int[][] image = {};
int[][] expected = {};
FloodFill.floodFill(image, 4, 5, 3, 2);
assertArrayEquals(expected, image);
@ -17,8 +17,8 @@ class FloodFillTest {
@Test
void testForSingleElementImage() {
int image[][] = { { 1 } };
int expected[][] = { { 3 } };
int[][] image = { { 1 } };
int[][] expected = { { 3 } };
FloodFill.floodFill(image, 0, 0, 3, 1);
assertArrayEquals(expected, image);
@ -26,7 +26,7 @@ class FloodFillTest {
@Test
void testForImageOne() {
int image[][] = {
int[][] image = {
{ 0, 0, 0, 0, 0, 0, 0 },
{ 0, 3, 3, 3, 3, 0, 0 },
{ 0, 3, 1, 1, 5, 0, 0 },
@ -36,7 +36,7 @@ class FloodFillTest {
{ 0, 0, 0, 3, 3, 3, 3 },
};
int expected[][] = {
int[][] expected = {
{ 0, 0, 0, 0, 0, 0, 0 },
{ 0, 3, 3, 3, 3, 0, 0 },
{ 0, 3, 2, 2, 5, 0, 0 },
@ -52,7 +52,7 @@ class FloodFillTest {
@Test
void testForImageTwo() {
int image[][] = {
int[][] image = {
{ 0, 0, 1, 1, 0, 0, 0 },
{ 1, 1, 3, 3, 3, 0, 0 },
{ 1, 3, 1, 1, 5, 0, 0 },
@ -62,7 +62,7 @@ class FloodFillTest {
{ 0, 0, 0, 1, 3, 1, 3 },
};
int expected[][] = {
int[][] expected = {
{ 0, 0, 2, 2, 0, 0, 0 },
{ 2, 2, 3, 3, 3, 0, 0 },
{ 2, 3, 2, 2, 5, 0, 0 },
@ -78,13 +78,13 @@ class FloodFillTest {
@Test
void testForImageThree() {
int image[][] = {
int[][] image = {
{ 1, 1, 2, 3, 1, 1, 1 },
{ 1, 0, 0, 1, 0, 0, 1 },
{ 1, 1, 1, 0, 3, 1, 2 },
};
int expected[][] = {
int[][] expected = {
{ 4, 4, 2, 3, 4, 4, 4 },
{ 4, 0, 0, 4, 0, 0, 4 },
{ 4, 4, 4, 0, 3, 4, 2 },

4
src/test/java/com/thealgorithms/backtracking/MazeRecursionTest.java
View File

@ -45,7 +45,7 @@ public class MazeRecursionTest {
MazeRecursion.setWay(map, 1, 1);
MazeRecursion.setWay2(map2, 1, 1);
int expectedMap[][] = new int[][] {
int[][] expectedMap = new int[][] {
{ 1, 1, 1, 1, 1, 1, 1 },
{ 1, 2, 0, 0, 0, 0, 1 },
{ 1, 2, 2, 2, 0, 0, 1 },
@ -56,7 +56,7 @@ public class MazeRecursionTest {
{ 1, 1, 1, 1, 1, 1, 1 },
};
int expectedMap2[][] = new int[][] {
int[][] expectedMap2 = new int[][] {
{ 1, 1, 1, 1, 1, 1, 1 },
{ 1, 2, 2, 2, 2, 2, 1 },
{ 1, 0, 0, 0, 0, 2, 1 },

4
src/test/java/com/thealgorithms/maths/AutomorphicNumberTest.java
View File

@ -7,8 +7,8 @@ public class AutomorphicNumberTest {
@Test
void testAutomorphicNumber() {
int trueTestCases[] = { 0, 1, 25, 625, 12890625};
int falseTestCases[] = { -5, 2, 26, 1234 };
int[] trueTestCases = { 0, 1, 25, 625, 12890625};
int[] falseTestCases = { -5, 2, 26, 1234 };
for (Integer n : trueTestCases) {
assertTrue(AutomorphicNumber.isAutomorphic(n));
assertTrue(AutomorphicNumber.isAutomorphic2(n));

4
src/test/java/com/thealgorithms/maths/PerfectNumberTest.java
View File

@ -7,8 +7,8 @@ class PerfectNumberTest {
@Test
public void perfectNumber() {
int trueTestCases[] = { 6, 28, 496, 8128, 33550336 };
int falseTestCases[] = { -6, 0, 1, 9, 123 };
int[] trueTestCases = { 6, 28, 496, 8128, 33550336 };
int[] falseTestCases = { -6, 0, 1, 9, 123 };
for (Integer n : trueTestCases) {
assertTrue(PerfectNumber.isPerfectNumber(n));
assertTrue(PerfectNumber.isPerfectNumber2(n));

14
src/test/java/com/thealgorithms/others/CalculateMaxOfMinTest.java
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@ -9,49 +9,49 @@ public class CalculateMaxOfMinTest {
@Test
void testForOneElement() {
int a[] = { 10, 20, 30, 50, 10, 70, 30 };
int[] a = { 10, 20, 30, 50, 10, 70, 30 };
int k = CalculateMaxOfMin.calculateMaxOfMin(a);
assertTrue(k == 70);
}
@Test
void testForTwoElements() {
int a[] = { 5, 3, 2, 6, 3, 2, 6 };
int[] a = { 5, 3, 2, 6, 3, 2, 6 };
int k = CalculateMaxOfMin.calculateMaxOfMin(a);
assertTrue(k == 6);
}
@Test
void testForThreeElements() {
int a[] = { 10, 10, 10, 10, 10, 10, 10 };
int[] a = { 10, 10, 10, 10, 10, 10, 10 };
int k = CalculateMaxOfMin.calculateMaxOfMin(a);
assertTrue(k == 10);
}
@Test
void testForFourElements() {
int a[] = { 70, 60, 50, 40, 30, 20 };
int[] a = { 70, 60, 50, 40, 30, 20 };
int k = CalculateMaxOfMin.calculateMaxOfMin(a);
assertTrue(k == 70);
}
@Test
void testForFiveElements() {
int a[] = { 50 };
int[] a = { 50 };
int k = CalculateMaxOfMin.calculateMaxOfMin(a);
assertTrue(k == 50);
}
@Test
void testForSixElements() {
int a[] = { 1, 4, 7, 9, 2, 4, 6 };
int[] a = { 1, 4, 7, 9, 2, 4, 6 };
int k = CalculateMaxOfMin.calculateMaxOfMin(a);
assertTrue(k == 9);
}
@Test
void testForSevenElements() {
int a[] = { -1, -5, -7, -9, -12, -14 };
int[] a = { -1, -5, -7, -9, -12, -14 };
int k = CalculateMaxOfMin.calculateMaxOfMin(a);
assertTrue(k == -1);
}

16
src/test/java/com/thealgorithms/others/CountFriendsPairingTest.java
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@ -9,49 +9,49 @@ public class CountFriendsPairingTest {
@Test
void testForOneElement() {
int a[] = { 1, 2, 2 };
int[] a = { 1, 2, 2 };
assertTrue(CountFriendsPairing.countFriendsPairing(3, a));
}
@Test
void testForTwoElements() {
int a[] = { 1, 2, 2, 3 };
int[] a = { 1, 2, 2, 3 };
assertTrue(CountFriendsPairing.countFriendsPairing(4, a));
}
@Test
void testForThreeElements() {
int a[] = { 1, 2, 2, 3, 3 };
int[] a = { 1, 2, 2, 3, 3 };
assertTrue(CountFriendsPairing.countFriendsPairing(5, a));
}
@Test
void testForFourElements() {
int a[] = { 1, 2, 2, 3, 3, 4 };
int[] a = { 1, 2, 2, 3, 3, 4 };
assertTrue(CountFriendsPairing.countFriendsPairing(6, a));
}
@Test
void testForFiveElements() {
int a[] = { 1, 2, 2, 3, 3, 4, 4 };
int[] a = { 1, 2, 2, 3, 3, 4, 4 };
assertTrue(CountFriendsPairing.countFriendsPairing(7, a));
}
@Test
void testForSixElements() {
int a[] = { 1, 2, 2, 3, 3, 4, 4, 4 };
int[] a = { 1, 2, 2, 3, 3, 4, 4, 4 };
assertTrue(CountFriendsPairing.countFriendsPairing(8, a));
}
@Test
void testForSevenElements() {
int a[] = { 1, 2, 2, 3, 3, 4, 4, 4, 5 };
int[] a = { 1, 2, 2, 3, 3, 4, 4, 4, 5 };
assertTrue(CountFriendsPairing.countFriendsPairing(9, a));
}
@Test
void testForEightElements() {
int a[] = { 1, 2, 2, 3, 3, 4, 4, 4, 5, 5 };
int[] a = { 1, 2, 2, 3, 3, 4, 4, 4, 5, 5 };
assertTrue(CountFriendsPairing.countFriendsPairing(10, a));
}
}

16
src/test/java/com/thealgorithms/others/KadaneAlogrithmTest.java
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@ -9,49 +9,49 @@ public class KadaneAlogrithmTest {
@Test
void testForOneElement() {
int a[] = { -1 };
int[] a = { -1 };
assertTrue(KadaneAlgorithm.max_Sum(a, -1));
}
@Test
void testForTwoElements() {
int a[] = { -2, 1 };
int[] a = { -2, 1 };
assertTrue(KadaneAlgorithm.max_Sum(a, 1));
}
@Test
void testForThreeElements() {
int a[] = { 5, 3, 12 };
int[] a = { 5, 3, 12 };
assertTrue(KadaneAlgorithm.max_Sum(a, 20));
}
@Test
void testForFourElements() {
int a[] = { -1, -3, -7, -4 };
int[] a = { -1, -3, -7, -4 };
assertTrue(KadaneAlgorithm.max_Sum(a, -1));
}
@Test
void testForFiveElements() {
int a[] = { 4, 5, 3, 0, 2 };
int[] a = { 4, 5, 3, 0, 2 };
assertTrue(KadaneAlgorithm.max_Sum(a, 14));
}
@Test
void testForSixElements() {
int a[] = { -43, -45, 47, 12, 87, -13 };
int[] a = { -43, -45, 47, 12, 87, -13 };
assertTrue(KadaneAlgorithm.max_Sum(a, 146));
}
@Test
void testForSevenElements() {
int a[] = { 9, 8, 2, 23, 13, 6, 7 };
int[] a = { 9, 8, 2, 23, 13, 6, 7 };
assertTrue(KadaneAlgorithm.max_Sum(a, 68));
}
@Test
void testForEightElements() {
int a[] = { 9, -5, -5, -2, 4, 5, 0, 1 };
int[] a = { 9, -5, -5, -2, 4, 5, 0, 1 };
assertTrue(KadaneAlgorithm.max_Sum(a, 10));
}
}

16
src/test/java/com/thealgorithms/others/LinkListSortTest.java
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@ -9,49 +9,49 @@ public class LinkListSortTest {
@Test
void testForOneElement() {
int a[] = { 56 };
int[] a = { 56 };
assertTrue(LinkListSort.isSorted(a, 2));
}
@Test
void testForTwoElements() {
int a[] = { 6, 4 };
int[] a = { 6, 4 };
assertTrue(LinkListSort.isSorted(a, 1));
}
@Test
void testForThreeElements() {
int a[] = { 875, 253, 12 };
int[] a = { 875, 253, 12 };
assertTrue(LinkListSort.isSorted(a, 3));
}
@Test
void testForFourElements() {
int a[] = { 86, 32, 87, 13 };
int[] a = { 86, 32, 87, 13 };
assertTrue(LinkListSort.isSorted(a, 1));
}
@Test
void testForFiveElements() {
int a[] = { 6, 5, 3, 0, 9 };
int[] a = { 6, 5, 3, 0, 9 };
assertTrue(LinkListSort.isSorted(a, 1));
}
@Test
void testForSixElements() {
int a[] = { 9, 65, 432, 32, 47, 327 };
int[] a = { 9, 65, 432, 32, 47, 327 };
assertTrue(LinkListSort.isSorted(a, 3));
}
@Test
void testForSevenElements() {
int a[] = { 6, 4, 2, 1, 3, 6, 7 };
int[] a = { 6, 4, 2, 1, 3, 6, 7 };
assertTrue(LinkListSort.isSorted(a, 1));
}
@Test
void testForEightElements() {
int a[] = { 123, 234, 145, 764, 322, 367, 768, 34 };
int[] a = { 123, 234, 145, 764, 322, 367, 768, 34 };
assertTrue(LinkListSort.isSorted(a, 2));
}
}

4
src/test/java/com/thealgorithms/searches/sortOrderAgnosticBinarySearchTest.java
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@ -8,7 +8,7 @@ public class sortOrderAgnosticBinarySearchTest{
@Test
public void testAscending(){
int arr[] = {1,2,3,4,5};// for ascending order.
int[] arr = {1,2,3,4,5};// for ascending order.
int target = 2;
int ans=sortOrderAgnosticBinarySearch.find(arr, target);
int excepted = 1;
@ -17,7 +17,7 @@ public class sortOrderAgnosticBinarySearchTest{
@Test
public void testDescending(){
int arr[] = {5,4,3,2,1};// for descending order.
int[] arr = {5,4,3,2,1};// for descending order.
int target = 2;
int ans=sortOrderAgnosticBinarySearch.find(arr, target);
int excepted = 3;