2025-07: Expanded C language coverage in doocs/leetcode by delivering new C implementations for LeetCode problems 0016 and 0017; created new C source files and updated READMEs to reflect language coverage. No major bugs fixed this month. Improved accessibility and learning resources, and set groundwork for future multi-language problem sets.

June 2025 monthly summary for doocs/leetcode: Expanded language coverage by delivering C-language implementations for four LeetCode problems (0008, 0009, 0014, 0015). Delivered with new source files and updated READMEs, improving accessibility for C-centric workflows and enabling broader contribution. The work was committed with clear messages and linked to repository issues/PRs (#4506, #4519), reflecting strong traceability and adherence to project standards. Overall, these contributions enhance code reuse, maintainability, and potential performance benefits for C users, supporting faster onboarding and enabling teams to leverage existing algorithmic solutions. Technologies/skills demonstrated include C programming, source-file organization, documentation, Git practices, and LeetCode-style problem solving.

May 2025 monthly summary for doocs/leetcode. Delivered a new language solution: LeetCode 0001 - Two Sum in C, using a hash-table approach to efficiently locate the pair that sums to the target; README updated to document the new solution. No major bug fixes were recorded this month in this repository. Impact: expands language coverage for common problems, provides a performant C implementation, improves user documentation, and aligns with project goal of multi-language problem-solving resources. Technologies/skills: C programming, hash-table data structure, algorithm design (Two Sum), code documentation, and commit hygiene.