Algorithms and Data Structures Tutorial - Full Course for Beginners
freeCodeCamp.org 5h 22m EN published 2021-03-18
Why LearnPath recommends it
Covers arrays, linked lists, hash tables, trees, graphs and the classic algorithms with hand-traced examples and complexity analysis in every section. The implementations are typed out on screen rather than shown as finished code, which makes it usable as a do-it-alongside course.
Editorial review dimensions (1–5), assigned by LearnPath editors — not a computed score. Last reviewed 2026-09-12.
What you walk away with
Implement core data structures from scratch
Analyse time/space complexity with Big-O
Recognise which structure fits a problem before coding