Learn the patterns

Concepts & patterns.

The recurring patterns behind most interview questions, the strategy that separates strong candidates, and how to actually work with AI under interview conditions. Each lesson links to problems you can drill and the reputable sources it draws on.

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Concepts & patterns.

Two Pointers

Sliding Window

Hashing

Binary Search

Breadth-First Search

Depth-First Search

Dynamic Programming

Backtracking

Greedy Algorithms

Heap / Priority Queue

Monotonic Stack

Prefix Sum

Intervals

Trie (Prefix Tree)

Bit Manipulation

Linked List Traversal

Graph Traversal

Matrix Traversal

Clarify Before You Code

Thinking Out Loud

Prompting Well Under Interview Conditions

Verifying AI Output