Algorithms Tutorial (original) (raw)

Last Updated : 12 Apr, 2025

**Algorithm is a step-by-step procedure for solving a problem or accomplishing a task. In the context of data structures and algorithms, it is a set of well-defined instructions for performing a specific computational task. Algorithms are fundamental to computer science and play a very important role in designing efficient solutions for various problems. Understanding algorithms is essential for anyone interested in mastering data structures and algorithms.

What is an Algorithm?

An **algorithm is a finite sequence of well-defined instructions that can be used to solve a computational problem. It provides a step-by-step procedure that convert an input into a desired output.

Algorithms typically follow a logical structure:

• **Input: The algorithm receives input data.
• **Processing: The algorithm performs a series of operations on the input data.
• **Output: The algorithm produces the desired output.

What is the Need for Algorithms?

Algorithms are essential for solving complex computational problems efficiently and effectively. They provide a systematic approach to:

• **Solving problems: Algorithms break down problems into smaller, manageable steps.
• **Optimizing solutions: Algorithms find the best or near-optimal solutions to problems.
• **Automating tasks: Algorithms can automate repetitive or complex tasks, saving time and effort.

Please refer **Complete Data Structures & Algorithms Tutorial for topic-wise guide, practice problems and interview questions.

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