December 2025 monthly summary — Phabala/born2solve - Delivered an end-to-end SWEA 2112 Problem Solver with input parsing and a problem environment scaffold. Implemented complete solution to SWEA problem 2112, including the algorithm to compute the minimum number of protective film layers required to guarantee at least K consecutive layers of the same type in the given matrix. The solution provides a ready-to-test workflow for this class of matrix-logic problems. - Key commits reflect the iterative debugging process: 1e6561f645488ae572896e64f9c0afd777f103e4 (SWEA 2112 보호필름(실패)) followed by d03d640c107a0b6f4c0e92d619f8b1b248b960b0 (SWEA 2112 보호필름). - This work lays the groundwork for automated problem-solving features and adds a robust solver that can be extended to similar matrix-based challenges.

October 2025 summary for Phabala/born2solve: Delivered two SWEA-focused features with working solutions and documentation. Implementations: SWEA 3421 Handmade Burger Master (DFS-based optimization with input parsing and constraint modeling; placeholder docs) with commits e2b1ca3be8be0233948ebf7279700d5966f541fa and 159061a1bb7d24a0b2db8337377c2542cc60b2fb; SWEA 1486 Minimum Height Difference (algorithm to compute minimum height difference) with commit 7b4acdc6edf7007b5d9a2f439c42c90b9b0b07cf. No major bug fixes reported in this scope. Overall impact: expands the problem-solving library, improves onboarding and maintainability, and provides reusable patterns for DFS/backtracking and constraint handling. Technologies demonstrated: DFS/backtracking, input parsing, constraint modeling, documentation scaffolding, and disciplined commit history.

September 2025 performance for Phabala/born2solve focused on delivering robust algorithmic solutions, improving maintainability, and expanding the repository knowledge base. Key milestones include finalizing a resilient Gerrymandering solution by replacing an initial failing C++ approach with a bitmasking-based method that minimizes population difference while preserving connectivity, implementing DP optimization for SWEA 1952 Swimming Pool, and contributing comprehensive documentation plus algorithmic implementations across SWEA/SNS problems. An experimental Java-based attempt for SWEA 1767 Processor Connection was initiated with a new code structure but remained a failure in this period. Overall, the month delivered tangible business value through scalable algorithms, efficient problem solving, and improved developer onboarding through documentation and code organization.

August 2025 — Phabala/born2solve focused on delivering robust algorithmic solutions with memory-aware patterns and scalable problem-solving templates. Delivered five targeted features across Baekjoon and SWEA, with explicit commit references to ensure traceability and reproducibility. Key contributions: Baekjoon 10989 (Sort Numbers 3) implemented using counting sort to handle memory constraints (commit 3a8573286b677829e0d881cdd2163376cd27dd65); Baekjoon 11724 (Connected Components) solved via DFS with metadata (commit f0ef564a44f82756cf9ca877973da0f272ed46dd); Baekjoon 15649 (N과 M(1)) backtracking permutations (commit 328fb1b1ff40c49cebd962ba37abee22259617e6); SWEA 2115 Honey Harvest with recursive approach and initial C++ structure (commit ddf9eeeb2dc7bc8f48ebf1c6e95b2868d9943063); SWEA 3952 Line Up using Topological Sort (commit f45ed91ba9c17b26f47854a06ad8ed10161d3dd9).

July 2025 highlights: Delivered a compact suite of robust, documented reference implementations for common algorithm problems in Phabala/born2solve, with strong cross-language coverage (Java and C++). Key features include DFS-based scaffolds and initial logic for Baekjoon 11725, arithmetic and sorting solutions in Java (10869, 10814), a Java comparison solution (1330), and C++ DFS/BFS (1260), along with stack-based solutions for Zero (10773) and Parentheses (9012). Documentation scaffolds with problem details and links were added to improve learnability and onboarding. No explicit bug fixes were logged; emphasis was on delivering reliable features, maintainable code, and problem references, enabling faster knowledge transfer and future iteration.

June 2025 (Phabala/born2solve): Expanded a robust competitive-programming library in C++ with documented implementations and reliability improvements. Delivered core algorithmic solutions across Baekjoon problems, featuring DP optimizations, stack-based algorithms, and safe-by-default design. Key outcomes include: (1) Baekjoon Stack (10828) with push/pop/size/empty/top and safety guard against empty-stack operations, plus Markdown docs; (2) Baekjoon Stack Sequence (1874) algorithm to emit valid push/pop sequences or NO; (3) Baekjoon Easy Stair Number (10844) DP solution with documentation and implementation; (4) Baekjoon Retirement (14501) DP with input handling and bottom-up optimization; (5) Baekjoon Ordinary Knapsack (10865) DP solution with ongoing debugging due to segmentation faults; (6) Administrative leave record captured for transparency. These deliverables strengthen library reuse, reliability, and onboarding while enabling faster future feature work.

Month: May 2025 (2025-05). Summary: Delivered a robust DP-focused solution suite in Phabala/born2solve, expanding algorithmic coverage and code quality. Implemented end-to-end DP solutions for a set of Baekjoon problems (Fibonacci variants, 2xN tiling, Stair Climbing, LIS, Pado-ban sequence, Grape Juice, and Tree Traversal) with careful memoization, state management, and testability. Consolidated common DP patterns, established consistent naming and documentation, and reduced problem-solving time for future work. Documentation and administrative housekeeping were performed to correct metadata and scheduling notes, improving repository clarity and maintainability.

April 2025: Delivered documentation and Java code samples for Baekjoon A+B, addition, and 1330 in Phabala/born2solve. Included rationale for BufferedReader usage and IO patterns; compared StringTokenizer vs split; minor documentation tweak. No major bugs fixed this month. The work strengthens onboarding, enforces consistent IO practices, and provides a reliable reference for solving similar Baekjoon problems. Technologies demonstrated include Java, documentation best practices, IO handling patterns, and Git-driven collaboration.

March 2025 monthly summary for 42srr/STUDY_CS focused on advancing documentation to strengthen onboarding, reduce knowledge gaps, and support design decisions in networking topics. Delivered structured, shareable notes across TCP protocols and Chapter 4 network concepts, aligning with the repository’s goal to provide thorough, exam-ready study material for foundational networking concepts.

February 2025 monthly summary for developer work in 42srr/STUDY_CS. Delivered foundational Networking Study Documentation, strengthening the knowledge base and onboarding material for engineers. Focused on Chapter 1: fundamentals of the internet, network components, protocols, network layers, and security threats; and Chapter 2, Section 1: network application principles including client-server and P2P architectures, IPC via sockets, TCP/UDP transport, and application-layer protocols such as HTTP and SMTP. No major bugs identified this month; all changes were documentation updates aimed at improving developer efficiency and knowledge transfer across the team.