drillcode

Coding interview prep that builds muscle memory, not just familiarity.

Short, focused drills you can do in a few minutes — repeat until the patterns stick.

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300 Coding Drills

Full problem → solution sets across 16 categories: arrays, trees, graphs, DP, backtracking and more.

100 Micro Drills

60-second muscle memory drills. See the pattern name, recall the template — instant reps.

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Custom Prep Lists

Build personalised lists from any drill. Paste a job description and get a targeted study plan.

400+ drills · 16 categories · 100% free

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