Phabala/born2solve
Aug 2025 – Feb 2026
7 Months active
Languages Used
C++JavaScriptMarkdownImageJavaPNG
Technical Skills
AlgorithmAlgorithm ImplementationAlgorithm OptimizationData StructuresDocumentationDynamic Programming
SeJin0214
PROFILE
Sejin0214
Overall Statistics
Feature vs Bugs
94%Features
Repository Contributions
78Total
Bugs
3
Commits
78
Features
51
Lines of code
4,451
Activity Months7
Your Network
121 people
Work History
February 2026
2 Commits • 1 Features
Feb 1, 2026Month: 2026-02 | Repository: Phabala/born2solve. Delivered a genre-based top-two songs feature with robust tie-break handling for best-album selection, improving playlist curation accuracy and user satisfaction. Fixed deterministic tie behavior across genres, reducing ambiguous outcomes and enhancing confidence in recommendations. Commits: 7c65831a1602df3713e61fcb250706d2cba0f71b, 0d48f276ae0a4e826f109b169747542d883ad8a7.
2 Commits • 1 Features
Feb 1, 2026Month: 2026-02 | Repository: Phabala/born2solve. Delivered a genre-based top-two songs feature with robust tie-break handling for best-album selection, improving playlist curation accuracy and user satisfaction. Fixed deterministic tie behavior across genres, reducing ambiguous outcomes and enhancing confidence in recommendations. Commits: 7c65831a1602df3713e61fcb250706d2cba0f71b, 0d48f276ae0a4e826f109b169747542d883ad8a7.
February 2026
January 2026
3 Commits • 1 Features
Jan 1, 2026Month: 2026-01 — Phabala/born2solve delivered a Programmable Problems Solutions Library, expanding our problem-solving capabilities for programmers and enabling faster onboarding of new challenges. Key features delivered: three solver modules for 등굣길 (DP-based unique paths in a grid with obstacles), Roll Cake Cutting (even distribution of toppings across cake pieces), and Tuple Problem (parsing/counting elements in a specific format). Each feature is backed by explicit commits ensuring traceability. Major bugs fixed: none reported this month. Overall impact: expanded library coverage, improved platform value, and stronger technical foundations for future problem additions; improved maintainability and traceability with clear commit messages. Technologies/skills demonstrated: DP, parsing/counting, problem-solving library design, clean commit hygiene, and repository organization for scalable module development.
January 2026
3 Commits • 1 Features
Jan 1, 2026Month: 2026-01 — Phabala/born2solve delivered a Programmable Problems Solutions Library, expanding our problem-solving capabilities for programmers and enabling faster onboarding of new challenges. Key features delivered: three solver modules for 등굣길 (DP-based unique paths in a grid with obstacles), Roll Cake Cutting (even distribution of toppings across cake pieces), and Tuple Problem (parsing/counting elements in a specific format). Each feature is backed by explicit commits ensuring traceability. Major bugs fixed: none reported this month. Overall impact: expanded library coverage, improved platform value, and stronger technical foundations for future problem additions; improved maintainability and traceability with clear commit messages. Technologies/skills demonstrated: DP, parsing/counting, problem-solving library design, clean commit hygiene, and repository organization for scalable module development.
December 2025
9 Commits • 6 Features
Dec 1, 2025December 2025 monthly summary for Phabala/born2solve: Delivered six key algorithmic features across problem domains (clothing combinations, fatigue optimization, largest-number construction, word transformation, ordinary knapsack DP, and city name caching). Implementations used greedy, BFS, DFS/recursion, and dynamic programming in C++ and Python. No separate bug-fix ticket identified; primary focus on feature delivery and performance optimization. Notable business impact includes improved problem-solving capabilities, reduced lookup latency via caching, and scalable solver patterns for future challenges.
9 Commits • 6 Features
Dec 1, 2025December 2025 monthly summary for Phabala/born2solve: Delivered six key algorithmic features across problem domains (clothing combinations, fatigue optimization, largest-number construction, word transformation, ordinary knapsack DP, and city name caching). Implementations used greedy, BFS, DFS/recursion, and dynamic programming in C++ and Python. No separate bug-fix ticket identified; primary focus on feature delivery and performance optimization. Notable business impact includes improved problem-solving capabilities, reduced lookup latency via caching, and scalable solver patterns for future challenges.
December 2025
November 2025
8 Commits • 2 Features
Nov 1, 2025Monthly summary for 2025-11 (Phabala/born2solve): Delivered foundational developer documentation and performance improvements with steady, well-documented progress. Key outcomes include enhanced onboarding through comprehensive markdown docs for academic coursework exercises, and ongoing performance optimizations to improve runtime and scalability. No formal bug-fix releases identified in this month; emphasis on stability and code quality.
November 2025
8 Commits • 2 Features
Nov 1, 2025Monthly summary for 2025-11 (Phabala/born2solve): Delivered foundational developer documentation and performance improvements with steady, well-documented progress. Key outcomes include enhanced onboarding through comprehensive markdown docs for academic coursework exercises, and ongoing performance optimizations to improve runtime and scalability. No formal bug-fix releases identified in this month; emphasis on stability and code quality.
October 2025
11 Commits • 9 Features
Oct 1, 2025Month: 2025-10 | Repository: Phabala/born2solve Key features delivered: - Game Map Shortest Distance (BFS): Adds BFS-based shortest path distance on grid maps to support pathfinding in games and map challenges. Commits: 2170107bed5455ba6a46588030e8e01e56a959e3; b7744cf0e4e18e157f34cccb96d3a26b72e495ad - Tangerine Picking: Determines the minimum number of distinct tangerine types needed to reach required quantity by counting frequencies and selecting most frequent types. Commit: d53d4afb5585f774f9c374fe791fd36ae7df3691 - Jump Problem - Dynamic Programming: DP-based solution to count the number of ways to reach the end with 1 or 2 steps, using modular arithmetic for large results. Commit: 78241d826acac961f5824edab82ec92798dd6757 - Expected Match Schedule: Calculates the rounds required for two players to meet in a tournament bracket. Commit: fcebdb7be0b4f62547bcf0f5520cf1deed2253c4 - Continuous Subsequence Sum Count: Counts unique sums of contiguous subsequences using a brute-force approach with an unordered set, documenting the problem and solution. Commit: 733512adf21c1753844fe5dbd540e0ecef2e400b - English Word Chain: Word chain game with queue-based turns and a used-word tracker, validating length, repetition, and last-letter rules. Commit: 5c236f609e9efe71ee1542f95711bcfe4cfa96bc - Discount Event: Determines how many days a user can purchase desired items within a 10-day discount period using a sliding window and hash maps. Commit: c1d5c154eaf1b03015fe7d0f0d2ef4bda36a04bd - Dot Plot Solution & Documentation: Documents and implements a solution for the Dot Plot problem (calculating lattice points inside a circle with given radius and grid step). Commit: 681679867c66eacccd4670995e7c7f964471f4b5 - Documentation: Planning and Trie Practice: Documentation updates including a planned day off and a Trie practice session with notes and assets. Commits: 41ebdf5ec42735c88d3ac73b62f121e8477ecb25; 2c7a6a839202967f9720872f0e98d912996cb5a6
11 Commits • 9 Features
Oct 1, 2025Month: 2025-10 | Repository: Phabala/born2solve Key features delivered: - Game Map Shortest Distance (BFS): Adds BFS-based shortest path distance on grid maps to support pathfinding in games and map challenges. Commits: 2170107bed5455ba6a46588030e8e01e56a959e3; b7744cf0e4e18e157f34cccb96d3a26b72e495ad - Tangerine Picking: Determines the minimum number of distinct tangerine types needed to reach required quantity by counting frequencies and selecting most frequent types. Commit: d53d4afb5585f774f9c374fe791fd36ae7df3691 - Jump Problem - Dynamic Programming: DP-based solution to count the number of ways to reach the end with 1 or 2 steps, using modular arithmetic for large results. Commit: 78241d826acac961f5824edab82ec92798dd6757 - Expected Match Schedule: Calculates the rounds required for two players to meet in a tournament bracket. Commit: fcebdb7be0b4f62547bcf0f5520cf1deed2253c4 - Continuous Subsequence Sum Count: Counts unique sums of contiguous subsequences using a brute-force approach with an unordered set, documenting the problem and solution. Commit: 733512adf21c1753844fe5dbd540e0ecef2e400b - English Word Chain: Word chain game with queue-based turns and a used-word tracker, validating length, repetition, and last-letter rules. Commit: 5c236f609e9efe71ee1542f95711bcfe4cfa96bc - Discount Event: Determines how many days a user can purchase desired items within a 10-day discount period using a sliding window and hash maps. Commit: c1d5c154eaf1b03015fe7d0f0d2ef4bda36a04bd - Dot Plot Solution & Documentation: Documents and implements a solution for the Dot Plot problem (calculating lattice points inside a circle with given radius and grid step). Commit: 681679867c66eacccd4670995e7c7f964471f4b5 - Documentation: Planning and Trie Practice: Documentation updates including a planned day off and a Trie practice session with notes and assets. Commits: 41ebdf5ec42735c88d3ac73b62f121e8477ecb25; 2c7a6a839202967f9720872f0e98d912996cb5a6
October 2025
September 2025
25 Commits • 18 Features
Sep 1, 2025September 2025 monthly development summary for Phabala/born2solve. Delivered a broad suite of competitive programming solutions and POCU coursework, reinforcing the repository with reliable problem implementations and maintenance updates. Work spanned new solutions for multiple Programmers problems (폰켓몬, 전화번호 목록, 구명보트 with consolidation, 가장 큰 수, 타깃 넘버, 네트워크, 정수 삼각형, 소수 찾기, 땅따먹기, N으로 표현 with dual commits, Jump and Teleport) plus POCU 과제1 across multiple commits and 실습 2–4, including material/solution additions and asset updates. Consolidated 구명보트 changes, aggregated POCU 과제1 changes, and addressed batch hygiene by handling a no-op commit and reverting POCU 실습 4 이미지 수정 and N으로 표현 tweaks. These efforts expand testable solution coverage, accelerate interview readiness, and demonstrate strong problem-solving, refactoring, and version-control discipline.
September 2025
25 Commits • 18 Features
Sep 1, 2025September 2025 monthly development summary for Phabala/born2solve. Delivered a broad suite of competitive programming solutions and POCU coursework, reinforcing the repository with reliable problem implementations and maintenance updates. Work spanned new solutions for multiple Programmers problems (폰켓몬, 전화번호 목록, 구명보트 with consolidation, 가장 큰 수, 타깃 넘버, 네트워크, 정수 삼각형, 소수 찾기, 땅따먹기, N으로 표현 with dual commits, Jump and Teleport) plus POCU 과제1 across multiple commits and 실습 2–4, including material/solution additions and asset updates. Consolidated 구명보트 changes, aggregated POCU 과제1 changes, and addressed batch hygiene by handling a no-op commit and reverting POCU 실습 4 이미지 수정 and N으로 표현 tweaks. These efforts expand testable solution coverage, accelerate interview readiness, and demonstrate strong problem-solving, refactoring, and version-control discipline.
August 2025
20 Commits • 14 Features
Aug 1, 2025Monthly summary for 2025-08 focused on feature delivery, correctness improvements, and knowledge transfer within Phabala/born2solve. Delivered a broad set of C++ algorithm implementations for common LeetCode problems, with strong emphasis on edge-case handling, efficiency, and documentation. The work expands the repository's algorithmic toolkit, enabling faster onboarding and enhanced interview readiness, while maintaining high code quality through Markdown docs and inline comments.
20 Commits • 14 Features
Aug 1, 2025Monthly summary for 2025-08 focused on feature delivery, correctness improvements, and knowledge transfer within Phabala/born2solve. Delivered a broad set of C++ algorithm implementations for common LeetCode problems, with strong emphasis on edge-case handling, efficiency, and documentation. The work expands the repository's algorithmic toolkit, enabling faster onboarding and enhanced interview readiness, while maintaining high code quality through Markdown docs and inline comments.
August 2025
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Quality Metrics
Correctness90.6%
Maintainability85.6%
Architecture82.8%
Performance83.0%
AI Usage20.0%
Skills & Technologies
Programming Languages
C++ImageJavaJavaScriptMarkdownPNG
Technical Skills
AI DevelopmentAI developmentAlgorithmAlgorithm AnalysisAlgorithm DesignAlgorithm ImplementationAlgorithm OptimizationAlgorithm PracticeAssignment SubmissionBreadth-First SearchBreadth-First Search (BFS)Brute ForceC++C++ programmingChess AI
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