CONCEPT BLOGS
Multi-phase guides with mental models, worked examples, diagrams, and real edge cases — the public form of Learnisim AI's conceptual learning. Read here; train it interactively in the app.
Learn how to reverse 1→2→3→4→5 using the three-pointer sliding window mental model. Complete with a step-by-step trace and implementation guide.
Learn the array data structure through a simple mental model of contiguous slots, worked examples of insert/delete/access, and a practical contact list application.
Understand data structures as containers with rules. Build a stack from scratch and use it to debug nested function calls—no prior experience needed.
