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Question: Three in One: Describe how you could use a single array to implement three stacks. My Thought Process: The first one is from the beginning. The middle one The last one is from the end. Problem: Stack will not have an equal size. Answer: Stack 1: [0, n/3] Stack 2: [n/3, 2n/3] Stack 3: [2n/3, n] Implementation: public class ThreeStackInOne { private int numberOfStacks = 3; private int st..

Stack (Last-In-First-Out) pop(): remove the top item from the stack push(item): add an item to the top of the stack peek(): return the top of the stack isEmpty(): Return true if and only if the stack is empty Stack Features: It does not offer constant-time access to the ith item. However, it does allow constant-time adds and removes, as it doesn't require shifting elements around. public class M..

2.2 Implement an algorithm to find the kth to last element of a singly linked list. public Node returnKthToLast(Node node, int k){ Node n = node; int i = 0; while (n.next != null){ if (i == k-1){ break; } i++; n = n.next; } return n; } This was so simple, but I found out that this algorithm is not what the potential interviewer is looking for. It's more like.. int printKthToLast(Node head, int k..

2.1 Write code to remove duplicates from an unsorted linked list. The first algorithm that came to my mind was storing data to Set and see if it shows an error when inserting a value to see if it exists. If it already exists then remove the node. Just checked the last Index. public Node deleteDuplicatedNodes(Node head){ Node n = head; Set set = new HashSet(); set.add(n.data); while(n.next != nul..

A Linked list is a data structure that represents a sequence of nodes. In a singly linked list, each node points to the next node in the linked list. A doubly linked list gives each node pointers to both the next node and the previous one. Unlike an array, a linked list does not provide constant-time access to a particular "index' within the list. This means that if you'd like to find the K'th e..

Fast Loading Video Banners Video is a powerful tool. Used well, it can draw attention, set a mood, or explain a topic. Video banners are especially good at those first 2 points. A good video banner requires more than just slapping a tag on a page and calling it good. In this article we’re going to explain everything you need to know to make great HTML5 Video banners. from: https://www.launch2suc..

// action from one moduleA to moduleB dispatch('moduleB/actionName', parameters, { root:true }) //Then it look for the action name and execute the command

HTML: CSS: #myVideo { width: 100%; height: 600px; object-fit: cover; z-index: -100; }

36. Valid Sudoku Determine if a 9 x 9 Sudoku board is valid. Only the filled cells need to be validated according to the following rules: Each row must contain the digits 1-9 without repetition. Each column must contain the digits 1-9 without repetition. Each of the nine 3 x 3 sub-boxes of the grid must contain the digits 1-9 without repetition. Note: A Sudoku board (partially filled) could be v..