Dynamic Programming Starts with a State, Not a Table
← Back to Blog & Articles Dynamic programming becomes much easier when you stop beginning with an array. Begin by […]
Algorithmic Edge, Uncategorized
Algorithmic Edge, Uncategorized
BFS or DFS? A Practical Interview Decision Guide
← Back to Blog & Articles Breadth-first search and depth-first search visit the same graph in different orders. The right […]
Algorithmic Edge, Uncategorized
Sliding Windows: Fixed Size or Variable Size?
← Back to Blog & Articles A sliding window reuses information about a contiguous range instead of recomputing that range […]
Algorithmic Edge, Uncategorized
Two Pointers: Recognizing the Pattern Before You Code
← Back to Blog & Articles Two pointers is less a single algorithm than a way to avoid repeating work. […]
Algorithms Made Simple, Uncategorized
Five Edge Cases to Test Before Calling an Algorithm Finished
An algorithm that works on the happy path may still fail at the boundaries. Before declaring it finished, test: Empty […]
Algorithms Made Simple, Uncategorized
Stack or Queue? A Simple Way to Choose
A stack and a queue both hold items, but they express different kinds of work. Choose a stack when the […]
Algorithms Made Simple, Uncategorized
Big-O in Plain Language
Big-O notation describes how an algorithm’s work grows as its input grows. O(1): the work stays roughly constant. O(log n): […]
Algorithms Made Simple, Uncategorized
Free Algorithm Cheat Sheet: Complexity, Patterns, and Data Structures
Good algorithm choices become easier when the major patterns are visible in one place. Choral Software has released a free […]
Algorithms Made Simple, Uncategorized
How to Choose the Right Data Structure
A good data structure does not merely store information. It makes the operation you care about cheap, clear, and difficult […]
Algorithms Made Simple, Uncategorized
Binary Search Explained Visually
Binary search is one of the clearest examples of how a small change in strategy can transform an algorithm. Instead […]