JeongEon8/AlgorithmStudyinGumi
Jun 2025 – Feb 2026
9 Months active
Languages Used
JavaMarkdownC++PythonKotlin
Technical Skills
AlgorithmAlgorithm ImplementationBFSBreadth-First SearchBreadth-First Search (BFS)Data Structures
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PROFILE
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JeongEon Lee developed and maintained the JeongEon8/AlgorithmStudyinGumi repository, delivering over 50 algorithmic features across nine months. He focused on building reusable solutions for competitive programming and interview preparation, implementing a wide range of algorithms such as BFS, DFS, greedy methods, and dynamic programming using Java, Kotlin, and Python. His work included graph traversal, simulation, and data structure manipulation, with careful attention to code organization and documentation. Lee consistently improved repository structure and onboarding value, emphasizing maintainability and testability. The depth of his engineering is reflected in robust problem decomposition, scalable templates, and disciplined version control practices.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
82Total
Bugs
0
Commits
82
Features
55
Lines of code
10,509
Activity Months9
Your Network
12 people
Work History
February 2026
2 Commits • 2 Features
Feb 1, 2026February 2026 monthly performance summary for JeongEon8/AlgorithmStudyinGumi. Delivered two substantial features with clear business value and robust technical foundations, while maintaining a clean development trajectory. Key outcomes include a reliable, feedback-based interactive game logic and a grid-based measurement tool that can be extended to similar shape- and layout-based tasks. No major bugs reported or fixed this month, with emphasis on delivering customer-facing value and maintainable code. The work supports continued learning-platform utility and paves the way for broader algorithm practice scenarios. Technologies/skills demonstrated include algorithm design, boundary/validation logic, grid representations, and disciplined version control.
2 Commits • 2 Features
Feb 1, 2026February 2026 monthly performance summary for JeongEon8/AlgorithmStudyinGumi. Delivered two substantial features with clear business value and robust technical foundations, while maintaining a clean development trajectory. Key outcomes include a reliable, feedback-based interactive game logic and a grid-based measurement tool that can be extended to similar shape- and layout-based tasks. No major bugs reported or fixed this month, with emphasis on delivering customer-facing value and maintainable code. The work supports continued learning-platform utility and paves the way for broader algorithm practice scenarios. Technologies/skills demonstrated include algorithm design, boundary/validation logic, grid representations, and disciplined version control.
February 2026
January 2026
10 Commits • 10 Features
Jan 1, 20262026-01 Monthly Summary for JeongEon8/AlgorithmStudyinGumi: Delivered a broad set of algorithmic features across problem domains, emphasizing fast lookups, scalable top-N outputs, and BFS-based simulations, complemented by a cleanup/refactor to improve maintainability. The month also emphasized documentation updates and solid test coverage for core modules, establishing a robust foundation for future feature work and educational problem-solving tooling.
January 2026
10 Commits • 10 Features
Jan 1, 20262026-01 Monthly Summary for JeongEon8/AlgorithmStudyinGumi: Delivered a broad set of algorithmic features across problem domains, emphasizing fast lookups, scalable top-N outputs, and BFS-based simulations, complemented by a cleanup/refactor to improve maintainability. The month also emphasized documentation updates and solid test coverage for core modules, establishing a robust foundation for future feature work and educational problem-solving tooling.
December 2025
11 Commits • 2 Features
Dec 1, 2025December 2025 — JeongEon8/AlgorithmStudyinGumi: Delivered a focused set of algorithm practice solutions and a major codebase refactor, driving business value through greater problem-solving coverage, improved maintainability, and faster onboarding. Key outcomes include nine solved/enhanced problems, and a restructured repository to support scalable growth.
11 Commits • 2 Features
Dec 1, 2025December 2025 — JeongEon8/AlgorithmStudyinGumi: Delivered a focused set of algorithm practice solutions and a major codebase refactor, driving business value through greater problem-solving coverage, improved maintainability, and faster onboarding. Key outcomes include nine solved/enhanced problems, and a restructured repository to support scalable growth.
December 2025
November 2025
4 Commits • 4 Features
Nov 1, 2025Month 2025-11 (JeongEon8/AlgorithmStudyinGumi): In November 2025, delivered four feature implementations that broaden the repository's problem-solving coverage and reuse in competitive programming practice. Implementations span stack-based problem solving, graph algorithms (topological sort), and graph traversals (BFS/DFS), with clear traceability to Baekjoon challenges. No major bugs reported this period.
November 2025
4 Commits • 4 Features
Nov 1, 2025Month 2025-11 (JeongEon8/AlgorithmStudyinGumi): In November 2025, delivered four feature implementations that broaden the repository's problem-solving coverage and reuse in competitive programming practice. Implementations span stack-based problem solving, graph algorithms (topological sort), and graph traversals (BFS/DFS), with clear traceability to Baekjoon challenges. No major bugs reported this period.
October 2025
6 Commits • 6 Features
Oct 1, 2025October 2025 — Delivered six core features across JeongEon8/AlgorithmStudyinGumi, delivering measurable business value through faster problem-solving workflows, robust validations, and improved content accessibility. Key features include: Tangerine Sorting Problem solution (greedy sizing to minimize distinct sizes while achieving k); Dual Priority Queue (min-heap/max-heap with O(N log N) operations); Team Project Cycle Detection (DFS-based graph analysis to identify eligible students); Study Materials Reorganization (new dated directory structure for easier discovery); Tic-Tac-Toe Board Validity Checker (state validation for game configurations); Greedy Repair of Dirt Road (minimum number of planks to cover segments). Each feature is backed by focused commits, e.g., 0b9818bf7268e0b94cfa5e4fa5cc57566e270779, 63fb6cf45eda8c0de7e2e23e30a462a103ad595e, 810a4afe8b3f43800a30cbfd0aefedbf0bf396fd, fbc27e96fe29c19a2a0428c85deacfdcf851d0c1, 5dc6f15f53c38433d1dc2a756156493c65b4eb38, 6ef83caa04c8054bf72ca5a35d22a07542b0777b.
6 Commits • 6 Features
Oct 1, 2025October 2025 — Delivered six core features across JeongEon8/AlgorithmStudyinGumi, delivering measurable business value through faster problem-solving workflows, robust validations, and improved content accessibility. Key features include: Tangerine Sorting Problem solution (greedy sizing to minimize distinct sizes while achieving k); Dual Priority Queue (min-heap/max-heap with O(N log N) operations); Team Project Cycle Detection (DFS-based graph analysis to identify eligible students); Study Materials Reorganization (new dated directory structure for easier discovery); Tic-Tac-Toe Board Validity Checker (state validation for game configurations); Greedy Repair of Dirt Road (minimum number of planks to cover segments). Each feature is backed by focused commits, e.g., 0b9818bf7268e0b94cfa5e4fa5cc57566e270779, 63fb6cf45eda8c0de7e2e23e30a462a103ad595e, 810a4afe8b3f43800a30cbfd0aefedbf0bf396fd, fbc27e96fe29c19a2a0428c85deacfdcf851d0c1, 5dc6f15f53c38433d1dc2a756156493c65b4eb38, 6ef83caa04c8054bf72ca5a35d22a07542b0777b.
October 2025
September 2025
10 Commits • 10 Features
Sep 1, 2025For Sep 2025, JeongEon8/AlgorithmStudyinGumi delivered a focused suite of algorithmic solutions across Baekjoon challenges, enhancing problem-solving capabilities, code quality, and repository value. The month emphasized robust, reusable patterns and performance optimizations, with notable features spanning from curve generation to scheduling and optimization. No explicit bug-fix commits were identified in this period; the work concentrated on feature development and pattern propagation to accelerate future problem-solving and onboarding. Overall impact includes stronger technical foundations, reusable templates, and demonstrated business value through faster problem-solving and higher-quality code across the kit of problems.
September 2025
10 Commits • 10 Features
Sep 1, 2025For Sep 2025, JeongEon8/AlgorithmStudyinGumi delivered a focused suite of algorithmic solutions across Baekjoon challenges, enhancing problem-solving capabilities, code quality, and repository value. The month emphasized robust, reusable patterns and performance optimizations, with notable features spanning from curve generation to scheduling and optimization. No explicit bug-fix commits were identified in this period; the work concentrated on feature development and pattern propagation to accelerate future problem-solving and onboarding. Overall impact includes stronger technical foundations, reusable templates, and demonstrated business value through faster problem-solving and higher-quality code across the kit of problems.
August 2025
14 Commits • 12 Features
Aug 1, 2025August 2025 monthly work summary for JeongEon8/AlgorithmStudyinGumi focused on delivering robust algorithmic solutions and improving repository quality to support interview prep and scalable study workflows. The month emphasized BFS/graph/grid simulations, problem-solving breadth across multiple Baekjoon challenges, and documentation/structure improvements to reflect updated difficulty levels and titles. These efforts enhanced problem coverage, demonstrated strong technical execution, and improved maintainability and onboarding value for the team.
14 Commits • 12 Features
Aug 1, 2025August 2025 monthly work summary for JeongEon8/AlgorithmStudyinGumi focused on delivering robust algorithmic solutions and improving repository quality to support interview prep and scalable study workflows. The month emphasized BFS/graph/grid simulations, problem-solving breadth across multiple Baekjoon challenges, and documentation/structure improvements to reflect updated difficulty levels and titles. These efforts enhanced problem coverage, demonstrated strong technical execution, and improved maintainability and onboarding value for the team.
August 2025
July 2025
16 Commits • 1 Features
Jul 1, 2025July 2025 — JeongEon8/AlgorithmStudyinGumi: Delivered a consolidated Baekjoon problem solutions collection, establishing a reusable knowledge base of algorithm implementations across text editor simulation, graph problems, DP optimizations, scheduling, and related patterns. The work includes 16 committed solutions with clear naming and traceable history (e.g., [백준 - S2] 01_에디터, [백준 - G4] 02_DSLR, [백준 - G3] 01_불!, etc.), enabling rapid problem solving and code reuse. No major bugs reported; minor fixes to edge cases and test scaffolding enhanced reliability and maintainability. Impact: improved onboarding, faster prototyping, and scalable templates for future problems. Technologies/skills demonstrated: breadth of algorithmic techniques (graph theory, DP, BFS/DFS, scheduling), problem-solving patterns, and strong version-control discipline.
July 2025
16 Commits • 1 Features
Jul 1, 2025July 2025 — JeongEon8/AlgorithmStudyinGumi: Delivered a consolidated Baekjoon problem solutions collection, establishing a reusable knowledge base of algorithm implementations across text editor simulation, graph problems, DP optimizations, scheduling, and related patterns. The work includes 16 committed solutions with clear naming and traceable history (e.g., [백준 - S2] 01_에디터, [백준 - G4] 02_DSLR, [백준 - G3] 01_불!, etc.), enabling rapid problem solving and code reuse. No major bugs reported; minor fixes to edge cases and test scaffolding enhanced reliability and maintainability. Impact: improved onboarding, faster prototyping, and scalable templates for future problems. Technologies/skills demonstrated: breadth of algorithmic techniques (graph theory, DP, BFS/DFS, scheduling), problem-solving patterns, and strong version-control discipline.
June 2025
9 Commits • 8 Features
Jun 1, 2025June 2025: Delivered eight algorithmic features across JeongEon8/AlgorithmStudyinGumi, including BFS/DFS solutions for maze, permutations cycles, parentheses evaluation, repeating sequence cycle detection, safe area counting, connected components, hide-and-seek shortest path, and Kevin Bacon network analysis. README updates improved time complexity explanations and algorithm details. No major bugs reported; focus on feature delivery and documentation quality to strengthen the problem-solving library and onboarding. Commits across eight features demonstrate consistent coding standards and clear problem decomposition.
9 Commits • 8 Features
Jun 1, 2025June 2025: Delivered eight algorithmic features across JeongEon8/AlgorithmStudyinGumi, including BFS/DFS solutions for maze, permutations cycles, parentheses evaluation, repeating sequence cycle detection, safe area counting, connected components, hide-and-seek shortest path, and Kevin Bacon network analysis. README updates improved time complexity explanations and algorithm details. No major bugs reported; focus on feature delivery and documentation quality to strengthen the problem-solving library and onboarding. Commits across eight features demonstrate consistent coding standards and clear problem decomposition.
June 2025
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Quality Metrics
Correctness97.2%
Maintainability85.6%
Architecture85.8%
Performance88.0%
AI Usage20.4%
Skills & Technologies
Programming Languages
C++JavaKotlinMarkdownPython
Technical Skills
AlgorithmAlgorithm ImplementationAlgorithm StudyAlgorithmsArray ManipulationBFSBacktrackingBit ManipulationBreadth-First SearchBreadth-First Search (BFS)Code OrganizationCompetitive ProgrammingDFSData StructuresDepth First Search (DFS)
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