Data Structures and Algorithms
77 PostsMethods to store, organize & process data efficiently for speed and memory optimization. DSA (Data Structures & Algorithms) means organizing data efficiently (arrays, trees, graphs, hash maps) and using step-by-step logic (sorting, searching, traversal) to solve problems quickly and with minimal memory — the foundation for building software that performs well at large scale.
Leetcode 217: Contains Duplicate
This lesson will teach you how to find the duplicate element using a hashing algorithm.
Leetcode 1295: Find Numbers with Even Number of Digits
This problem tests your knowledge of mathematics. Solving this problem helps you find the place values and how they are represented in the decimal number system.
Array Strengths, Weaknesses, and Big-O Complexities
In this lesson, you will learn about array strengths and weaknesses along with the big-o complexities.
Find the Largest Element In the Array
In this lesson, you will learn how to approach the problem, and come up with different strategies to solve the problem.
Leetcode 1: Two Sum Problem
This lesson on "Two Sum" coding problem is discussed thoroughly with illustrations and various approaches with running time complexities.
How To Print a 2D Array Elements?
This lesson teaches you how to iterate through a 2D array of integers. The same follows with other data types.
Introduction To 2D Arrays
This article is an introductory lesson on 2D array ds with sketches, and memory diagrams with examples.
Array Length vs. Capacity
Array capacity is how many items an array can hold, and array length is how many items an array currently has.