Algorithm

What is an algorithm?

An algorithm is a set of step-by-step instructions used to solve a problem or perform a task. Algorithms are foundational to computing and are used in everything from basic arithmetic to complex machine learning models.

What is an example of an algorithm?

A recipe for baking a cake is an example of an algorithm—it lists the steps in a specific order to reach a result.

In computing, an example would be a sorting algorithm like Bubble Sort, which arranges items in order through repeated comparison and swapping.

Why are algorithms important?

Algorithms help computers solve problems efficiently and consistently.

They provide a structured way to automate tasks, make decisions, and process data across applications like search engines, apps, and AI systems.

What are the types of algorithms?

Common types include sorting, searching, recursive, dynamic programming, and greedy algorithms.

Each type solves different problems—e.g., searching algorithms find items in data, while dynamic programming solves problems by breaking them into sub-problems.

What is the difference between an algorithm and a program?

An algorithm is a plan or logic; a program is its implementation in code.

You can think of an algorithm as the blueprint and the program as the building constructed from that blueprint.

Are algorithms used only in computers?

No, algorithms are used in daily life tasks like cooking, driving directions, or solving puzzles.

Any systematic method that follows logical steps to reach a goal can be considered an algorithm.