Java PriorityQueue Class Example In Java, the PriorityQueue class is part of the java.util package and is used to implement a priority queue data structure. This class is implemented as a priority heap, which allows elements to be processed based on their priority rather than their insertion order. What is Read more…
Problem Statement: In this problem, you are tasked with finding the node at which two singly linked lists intersect. The lists may intersect at any point, and you need to return the intersection node. If there is no intersection, you should return null. Input: Output: Example: Approach to the Problem: Read more…
Problem Statement: Partition List In this problem, you are given a linked list and a value x. The goal is to partition the list such that all nodes with values less than x come before nodes with values greater than or equal to x. The relative order of the nodes Read more…
Problem Statement: In this problem, you need to remove duplicate elements from a sorted linked list such that each element appears only once. Input: Output: Example: Approach to the Problem: Since the linked list is already sorted, we can simply iterate through the list and check for consecutive duplicates. When Read more…
Problem Statement: In this problem, you are tasked with merged k sorted linked lists into a single sorted linked list. Each linked list contains nodes that are sorted in non-decreasing order. Input: Output: Example: For example, given the following sorted linked lists: The output should be: Approach to the Problem: Read more…
Problem Statement: In this problem, you are given a singly linked list, and your task is to reorder it in a specific way. The required reorder is to rearrange the linked list such that it follows the pattern: L0 → Ln → L1 → Ln-1 → L2 → Ln-2 → Read more…
Problem Statement: In this problem, you are given a linked list, and you need to determine if it contains a cycle. A cycle exists in a linked list if any node is revisited while traversing the list. Input: Output: Example: Given the linked list: Approach to the Problem: We can Read more…
Problem Statement: In this problem, you are given a linked list where each node has two pointers: a next pointer that points to the next node in the list and a random pointer that can point to any node in the list or be null. Your task is to create Read more…
Problem Statement: In this problem, you need to merge two sorted linked lists into a new sorted linked list. The new list should be formed by splicing together the nodes of the first two lists, preserving the order of the nodes. Input: Output: Example: Given the input: The output should Read more…
Problem Statement: In this problem, you are given two linked lists representing two non-negative integers. The digits of these integers are stored in reverse order, meaning that the least significant digit is at the head of the list. Your task is to add these two numbers and return the sum Read more…