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Cheng Lin

PROFILE

Cheng Lin

Contributed to the OI-wiki/OI-wiki repository by developing two feature-focused updates over two months, emphasizing both documentation clarity and algorithmic depth. Enhanced the Luogu Contest Problem Setting documentation, streamlining the contest creation workflow and aligning guidance with official policies through improved Markdown structure and cross-repo coordination. Later, delivered a template problem for Feasible Flow with Lower and Upper Bounds, providing a reference C++ implementation, comprehensive tests, and detailed documentation updates. Leveraged skills in C++, algorithms, and graph theory to create reusable solutions and clear onboarding materials, supporting both contributors and learners with well-documented, traceable, and policy-aligned engineering work.

Overall Statistics

Feature vs Bugs

100%Features

Repository Contributions

2Total
Bugs
0
Commits
2
Features
2
Lines of code
129
Activity Months2

Work History

June 2026

1 Commits • 1 Features

Jun 1, 2026

June 2026 focused on extending problem coverage for feasibility flows in the OI-wiki repository by delivering a template problem for Feasible Flow with Lower and Upper Bounds, including a reference C++ implementation, tests, and documentation updates. Delivered a cohesive, tested solution and improved documentation readability to support learners and contributors.

September 2025

1 Commits • 1 Features

Sep 1, 2025

September 2025 performance summary for OI-wiki/OI-wiki: Delivered a feature-focused documentation update to Luogu Contest Problem Setting, clarifying the contest creation process and improving contributor onboarding. Key change includes links to official contest rules, reference to the submission ticket system, and an updated author list. Implemented a targeted fix to contest/problemsetting.md (commit 19690887518dde2a0b3904e48f8503bfe9f4c16c, 'fix(contest/problemsetting.md)'). Resulted in clearer guidance, policy alignment, and reduced ambiguity for contributors. Demonstrated strong documentation practices, cross-repo coordination, and change traceability.

Activity

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Quality Metrics

Correctness100.0%
Maintainability100.0%
Architecture90.0%
Performance90.0%
AI Usage40.0%

Skills & Technologies

Programming Languages

Markdown

Technical Skills

AlgorithmsC++DocumentationGraph TheoryMarkdown

Repositories Contributed To

1 repo

Overview of all repositories you've contributed to across your timeline

OI-wiki/OI-wiki

Sep 2025 Jun 2026
2 Months active

Languages Used

Markdown

Technical Skills

DocumentationAlgorithmsC++Graph TheoryMarkdown