← 🧩 Algorithms Foundations19 / 25
Lesson 19 — Sliding window
Moving range
Slide a window to compute things like the max sum of k items in O(n).
Why it matters: it avoids recomputing overlapping work.
Task
Find the max sum of any 3 consecutive numbers.
Keep going with Algorithms Foundations
Ready for more? These paid resources pick up where this lesson leaves off.
UdemyBestsellers
Top-rated Algorithms Foundations courses
Project-based Algorithms Foundations video courses — the perfect paid next step after these free lessons.
Browse on Udemy →AmazonReader picks
Best Algorithms Foundations books
Hand-picked Algorithms Foundations books to master the fundamentals offline.
See on Amazon →Some links on this page are affiliate links: we may earn a commission at no extra cost to you. We only recommend tools we believe are genuinely useful.