Master C++ templates from deduction and specialization through SFINAE, concepts, and senior-level template design. Each deck pairs focused mechanics with the prediction, repair, and implementation questions interviewers actually ask.

Forty-five classic coding-interview problems — the ones that keep showing up — solved in Python or C++ against a test suite you run in the browser. Fifteen Easy, fifteen Medium, fifteen Hard, so you can warm up, stretch, and then grind.