Azam's Blog on System Design & Architecture

What is an Array? An array is a data structure that stores a fixed-size sequential collection of elements of the same type. In other words, an array is a collection of variables of the same type, which are accessed by a common name. Types of Array: One-dimensional array: This is the simplest type of array, where the elements are stored in a single row. Multi-dimensional array: This type of array allows you to store elements in a two-dimensional, three-dimensional, or even higher-dimensional grid. Jagged array: This type of array is an array of arrays, where each element in the array is an array of varying length. Advantages of using Array: Arrays allow for quick and easy access to elements . You can access any element in an array by its index, which makes it easy to manipulate data. Arrays are great for storing large amounts of data in a structured way. You can organize data in an array in a way that makes sense for your program. Arrays are efficient in terms of memory usage , as the...

 What is a Tree data structure?  A tree is a non-linear data structure that consists of nodes connected by edges , where each node can have zero or more children nodes . The topmost node of a tree is called the root node , and nodes with no children are called leaf nodes . There are several types of trees: Binary Tree : A binary tree is a tree in which each node has at most two children. Binary Search Tree (BST): A binary search tree is a binary tree in which the left subtree of a node contains only nodes with keys less than the node's key, and the right subtree contains only nodes with keys greater than the node's key. AVL Tree: An AVL tree is a self-balancing binary search tree in which the heights of the left and right subtrees of any node differ by at most one. B-Tree: A B-tree is a self-balancing tree in which each node can have more than two children. Trie: A trie is a tree-like data structure used to store a set of strings, where each node represents a single character...