Computer scienceIntermediate Popular

Data Structures & Algorithms

Choose the right tool and reason about cost.

Build the core computer-science toolkit: complexity, arrays, stacks, queues, hash maps, trees, graphs and sorting. Learn to explain trade-offs, not just memorise code.

10 lessons 2 hours Certificate included Self-paced

Start the first lesson View curriculum

Reviewed and updated October 2026 · Free to start

What you will learn

By the end, you can do this.

Analyse time and space complexity
Choose arrays, stacks, queues and maps deliberately
Traverse trees and graphs safely
Explain algorithm trade-offs in an interview or review

Curriculum

10 lessons in 1 module

290 practice drills included for extra repetition

0/10 complete

01RecursionSolve a problem by having a function call itself on a smaller version of the same problem. 12 min 02Sorting algorithmsUnderstand how a few classic sorts work so you can choose the built-in sort with confidence. 14 min 03Binary searchRepeatedly split a sorted range in half to find a value in logarithmic time. 12 min 04Dynamic programming basicsReuse answers to overlapping subproblems to turn repeated work into a single cached computation. 14 min 05Practical problem solvingA repeatable process for turning a vague problem into a correct, tested solution. 12 min 06Complexity and Big OBig O describes how work grows, not how many milliseconds a machine takes. 13 min 07Arrays, strings and two pointersContiguous storage is fast; index discipline is everything. 14 min 08Stacks and queuesRestricting where insertion and removal happen makes some problems simple. 13 min 09Hash maps and frequency countingHash maps trade memory for fast keyed lookup and are behind many one-pass solutions. 14 min 10Trees, graphs and traversalRecursive structure needs a visited strategy and a clear base case. 15 min

Certification

Finish the course. Prove the skill.

Complete every lesson, then pass a timed assessment to earn the Data Structures & Algorithms Certificate. Each credential has a unique ID and a QR code that resolves to a live public record.

10 randomized questions
30 minute limit · 80% to pass
3 attempts per enrolment
Verifiable by QR or credential ID

Certification details Verify a credential

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EduByte.tech

EduByte · Skills certificationIssued 26 Oct 2026

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Your name

has successfully completed the assessed program

Data Structures & Algorithms

Analyse time and space complexityChoose arrays, stacks, queues and maps deliberatelyTraverse trees and graphs safely

Data Structures & Algorithms

By the end, you can do this.

10 lessons in 1 module

Finish the course. Prove the skill.

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