TWO POINTERS / 03 · RECALL
THE PART THAT MAKES IT STICK

MAKE IT
YOURS.

3Sum · rebuild before you reveal.

01 / REBUILD02 / CHECK03 / CONNECT

What do you recognize? Where do the pointers start? Why is a move safe? When do you stop? What does it cost?

Blank first. Solution later.

Your writing is private and saved on this device. The five checks are scored; your prose is for self-review.