rishabhverma17

package graph.leetcode;

import java.util.ArrayList;
import java.util.Stack;

public class CourseSchedule2 {

    private static boolean isDAG = true;

    public static void main(String[] args) {

rishabhverma17

class RatInAMaze {
    public static ArrayList<String> findPath(int[][] m, int n) {
        boolean[][] visited = new boolean[n][n];
        ArrayList<String> result = new ArrayList<>();
        StringBuilder sb = new StringBuilder();
        backtrack(m,0,0,visited,result, sb);
        Collections.sort(result);
        return result;
    }
    

rishabhverma17

public class Main {
    /**
     * Expected Output
     * Printing odd even till 10
            oddThread  :: 1
            evenThread :: 2
            oddThread  :: 3
            evenThread :: 4
            oddThread  :: 5
            evenThread :: 6

rishabhverma17

import java.util.LinkedList;
import java.util.Queue;

public class Graph {
    public void printDFS(int[][] adj_mat){
        int v = adj_mat.length;
        boolean[] visited = new boolean[v];
        
        for(int i=0; i<v; i++){
            if(visited[i] == false){

rishabhverma17

public class LinkedList {
    private ListNode head;
    private int size = 0;

    public void insertToHead(int data){
        ListNode newNode = new ListNode(data);
        if(head == null){
            head = newNode;
            size++;
            return;

rishabhverma17

package com.java.practice;

import java.util.*;

public class BreadthFirstSearch {
    public Set<Integer> BFS (GraphAdjacencyList graph, int root){
        Set<Integer> visited = new LinkedHashSet<>();
        Queue<Integer> queue = new LinkedList<>();
        queue.offer(root);
        while(!queue.isEmpty()){

rishabhverma17

package com.verma.rishabh;

public class Main {

    public static void main(String[] args){
        singlyMethodsTest();
        SLL_Loop();
        reverseTest();
        checkPalindrome();
    }

rishabhverma17

package com.verma.rishabh;

import java.util.ArrayList;
import java.util.Collections;

public class NextGreaterElementWithSameSet {
    public ArrayList<Integer> returnNextGreatest(int[] num){
        ArrayList<Integer> part1 = new ArrayList<>();
        ArrayList<Integer> part2 = new ArrayList<>();
        int arrayLen = num.length;

rishabhverma17

package com.java.practice;

public class Singleton {

    /*** Create a private Static variable of type Singleton */
    private static Singleton singleton_instance = null;

    String str;

    /*** Mark the constructor as private */

rishabhverma17

package com.java.practice;

/*
    Immutable means : Once the object has been created, The object
    state cannot be modified.

    This Class Can be instantiated but cannot be extended.
*/

// Class available to all for instansiation(Communicaiton)