~/problems

Problems

Basics first, then the classics, then company-style assessments. Every problem has tests you run right here; multi-level ones unlock as you go. See the roadmap.

Interview roadmap

Stacks

Matching brackets, paths, next greater element.

24 problems

Interview roadmap

Stacks Matching brackets, paths, next greater element.

Stacks guide

Monotonic stack guide

Stack: path parsing guide

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