## Doubly Linked List Implementation Java

LinkedList is a linear data structure which allows to insert and remove elements at the front and rear in constant time. LinkedLists are typically of two types, Single LinkedList Each node has a reference to…

LinkedList is a linear data structure which allows to insert and remove elements at the front and rear in constant time. LinkedLists are typically of two types, Single LinkedList Each node has a reference to…

Queue is a linear datastructure that stores elements with first in first out(FIFO) ordering. That is, the element which gets added to the queue leaves before all the elements added after it. The most…

Stack is one of the most used data structures in computer science. It is a linear data structure which supports ordering of elements in Last In First Out order(LIFO). The very typical real world…

Problem Statement Given an a list of n integers which are non negative and represent an elevation map of various buildings where the width of each bar/building is 1, Find out how much water…

Problem Statement Given two integer arrays, arr1 and arr2, find K pairs of elements such that (x,y) where x is the value from the first array and y is the value from the second…