Introduction
LeetCode The Hard Way began as my personal learning notes and has since grown into a free resource for everyone. It offers structured tutorials, templates, roadmaps, and solution explanations for learning data structures and algorithms.
Start with the tutorials when you want to learn a concept, use the roadmap pages when you want a focused practice path, and refer to the solution catalog when you want complete explanations for individual problems.
Problem of the Day (POTD)Browse daily LeetCode problems and their editorials by date.Problems (By Company)Browse company problem lists by difficulty and frequency.TutorialsLearn data structures, algorithms, math, strings, graph theory, and other core topics.SolutionsBrowse detailed LeetCode solution explanations grouped by problem ID ranges.RatingsBrowse LeetCode problem ratings with search, sorting, and pagination.RoadmapFollow curated problem sets for specific topics and study plans.TemplatesUse reusable implementation templates for common algorithm patterns.