I teach the pattern, so you never have to memorise the problem.

I'm Abhishek Aggarwal, an AI engineer with over two years of industry experience, and I've spent the last four years solving DSA problems and teaching them to students.

The sheet is the order I actually teach in — every problem chosen because it introduces a pattern or sharpens one, with the key concept written next to it so you learn to recognise it, not memorise it.

I'm recording a video and a Short for every problem, and building a visualizer so you can watch each solution run step by step.