CODE-U-S/Coding_Test_Study
Nov 2024 – Jan 2026
14 Months active
Languages Used
C++JavaJavaScriptPythonCGSiostreamstring
Technical Skills
AlgorithmAlgorithm implementationArray ManipulationArray iterationArray processingConditional logic
parkjay0709
PROFILE
Parkjay0709
Over 14 months, So Rjdla developed a comprehensive suite of algorithmic utilities and competitive programming solutions in the CODE-U-S/Coding_Test_Study repository. They focused on building reusable modules for string manipulation, array processing, and arithmetic logic, using C++, Python, and JavaScript to address a wide range of coding challenges. Their technical approach emphasized clean input/output handling, modular code structure, and maintainable commit practices, enabling rapid onboarding and scalable learning. By delivering over 100 features—including cross-language problem solvers and educational demos—So Rjdla established a robust foundation for coding assessments, interview preparation, and ongoing algorithmic skill development.
Overall Statistics
Feature vs Bugs
97%Features
Repository Contributions
224Total
Bugs
3
Commits
224
Features
101
Lines of code
11,902
Activity Months14
Your Network
16 people
Work History
January 2026
2 Commits • 1 Features
Jan 1, 2026January 2026 – CODE-U-S/Coding_Test_Study: Delivered a minimal but practical C++ feature that appends '??!' to user input, illustrating string concatenation and basic I/O. This creates a ready-to-run educational example for BOJ Bronze 5 problems and serves as a reproducible onboarding/demo artifact. No major bugs fixed this month; focus was on feature delivery and documentation. Overall impact includes improved readiness for coding-test scenarios, better test/demo reproducibility, and clear commit traceability. Technologies/skills demonstrated include C++, standard input/output, string manipulation, and basic algorithmic thinking, reinforced by disciplined version control.
2 Commits • 1 Features
Jan 1, 2026January 2026 – CODE-U-S/Coding_Test_Study: Delivered a minimal but practical C++ feature that appends '??!' to user input, illustrating string concatenation and basic I/O. This creates a ready-to-run educational example for BOJ Bronze 5 problems and serves as a reproducible onboarding/demo artifact. No major bugs fixed this month; focus was on feature delivery and documentation. Overall impact includes improved readiness for coding-test scenarios, better test/demo reproducibility, and clear commit traceability. Technologies/skills demonstrated include C++, standard input/output, string manipulation, and basic algorithmic thinking, reinforced by disciplined version control.
January 2026
December 2025
5 Commits • 2 Features
Dec 1, 2025December 2025 monthly work summary for CODE-U-S/Coding_Test_Study. Delivered feature-focused improvements with clear business value and solid technical execution. No major bugs reported in this data window; emphasis on reliable tooling and data normalization.
December 2025
5 Commits • 2 Features
Dec 1, 2025December 2025 monthly work summary for CODE-U-S/Coding_Test_Study. Delivered feature-focused improvements with clear business value and solid technical execution. No major bugs reported in this data window; emphasis on reliable tooling and data normalization.
November 2025
1 Commits • 1 Features
Nov 1, 2025November 2025: Focused on delivering a compact string manipulation utility in CODE-U-S/Coding_Test_Study and stabilizing related I/O handling for competitive programming problems. Implemented a Character Extraction by Index feature that reads a string and an index and prints the character at that position, enabling quick prototyping for string-related challenges. This aligns with BOJ problem [BOJ] 문자와 문자열 / Bronze 5 and provides a reusable building block for future problems.
1 Commits • 1 Features
Nov 1, 2025November 2025: Focused on delivering a compact string manipulation utility in CODE-U-S/Coding_Test_Study and stabilizing related I/O handling for competitive programming problems. Implemented a Character Extraction by Index feature that reads a string and an index and prints the character at that position, enabling quick prototyping for string-related challenges. This aligns with BOJ problem [BOJ] 문자와 문자열 / Bronze 5 and provides a reusable building block for future problems.
November 2025
October 2025
14 Commits • 10 Features
Oct 1, 2025October 2025 (2025-10) performance summary for CODE-U-S/Coding_Test_Study. Delivered a diverse set of algorithmic solutions across Bronze to Platinum levels, improved input handling and edge-case robustness, and introduced scalable templates for problem-solving. Impact: expanded the practice suite, enabling faster onboarding and higher-quality reusable code across repositories. Technologies demonstrated include algorithms, data structures, iterative problem-solving patterns, and test-driven approaches to validate correctness across varying constraints.
October 2025
14 Commits • 10 Features
Oct 1, 2025October 2025 (2025-10) performance summary for CODE-U-S/Coding_Test_Study. Delivered a diverse set of algorithmic solutions across Bronze to Platinum levels, improved input handling and edge-case robustness, and introduced scalable templates for problem-solving. Impact: expanded the practice suite, enabling faster onboarding and higher-quality reusable code across repositories. Technologies demonstrated include algorithms, data structures, iterative problem-solving patterns, and test-driven approaches to validate correctness across varying constraints.
September 2025
54 Commits • 27 Features
Sep 1, 2025September 2025 (2025-09) monthly summary for CODE-U-S/Coding_Test_Study: Expanded the repository’s BOJ Bronze 5 problem-solution library with broad coverage across multiple topics, improved stability with targeted fixes, and enhanced code quality to support scalable learning and onboarding. The work delivered strong business value by enabling faster practice iteration and consistent problem-solving patterns.
54 Commits • 27 Features
Sep 1, 2025September 2025 (2025-09) monthly summary for CODE-U-S/Coding_Test_Study: Expanded the repository’s BOJ Bronze 5 problem-solution library with broad coverage across multiple topics, improved stability with targeted fixes, and enhanced code quality to support scalable learning and onboarding. The work delivered strong business value by enabling faster practice iteration and consistent problem-solving patterns.
September 2025
August 2025
40 Commits • 21 Features
Aug 1, 2025Monthly Summary for 2025-08 Overview: In CODE-U-S/Coding_Test_Study, delivered a broad set of competitive programming problem solutions and completed essential repository maintenance to strengthen the learning library and code quality. The month focused on expanding problem coverage, improving tooling, and maintaining code health to accelerate learning and reduce onboarding friction.
August 2025
40 Commits • 21 Features
Aug 1, 2025Monthly Summary for 2025-08 Overview: In CODE-U-S/Coding_Test_Study, delivered a broad set of competitive programming problem solutions and completed essential repository maintenance to strengthen the learning library and code quality. The month focused on expanding problem coverage, improving tooling, and maintaining code health to accelerate learning and reduce onboarding friction.
July 2025
17 Commits • 3 Features
Jul 1, 2025July 2025 monthly summary for CODE-U-S/Coding_Test_Study: Delivered core features and curated practice assets to strengthen problem-solving capabilities and onboarding, while maintaining code quality and consistency across Bronze 5 content.
17 Commits • 3 Features
Jul 1, 2025July 2025 monthly summary for CODE-U-S/Coding_Test_Study: Delivered core features and curated practice assets to strengthen problem-solving capabilities and onboarding, while maintaining code quality and consistency across Bronze 5 content.
July 2025
June 2025
19 Commits • 8 Features
Jun 1, 2025June 2025 monthly summary for CODE-U-S/Coding_Test_Study. Focused on delivering reusable utilities, robust algorithmic implementations, and maintainability improvements to accelerate solution development and enhance code quality. Key features delivered span user-facing I/O patterns, age/date utilities, numeric libraries, and core algorithms, with targeted maintenance to improve readability and long-term sustainability.
June 2025
19 Commits • 8 Features
Jun 1, 2025June 2025 monthly summary for CODE-U-S/Coding_Test_Study. Focused on delivering reusable utilities, robust algorithmic implementations, and maintainability improvements to accelerate solution development and enhance code quality. Key features delivered span user-facing I/O patterns, age/date utilities, numeric libraries, and core algorithms, with targeted maintenance to improve readability and long-term sustainability.
May 2025
11 Commits • 1 Features
May 1, 2025May 2025 performance highlights for CODE-U-S/Coding_Test_Study: Delivered cross-language challenge solutions across Python, Java, C++, and JavaScript, forming a cohesive reference suite for interview prep and onboarding. Implementations cover a broad set of algorithms and data transformations, with consistent structure and commit hygiene to support maintainability and reuse.
11 Commits • 1 Features
May 1, 2025May 2025 performance highlights for CODE-U-S/Coding_Test_Study: Delivered cross-language challenge solutions across Python, Java, C++, and JavaScript, forming a cohesive reference suite for interview prep and onboarding. Implementations cover a broad set of algorithms and data transformations, with consistent structure and commit hygiene to support maintainability and reuse.
May 2025
April 2025
3 Commits • 2 Features
Apr 1, 2025April 2025 — Expanded the Coding_Test_Study toolset with cross-language challenges and a Python fraction arithmetic utility, delivering tangible value for learners and educators. The period demonstrated strong cross-language development, robust API design, and readiness for broader adoption.
April 2025
3 Commits • 2 Features
Apr 1, 2025April 2025 — Expanded the Coding_Test_Study toolset with cross-language challenges and a Python fraction arithmetic utility, delivering tangible value for learners and educators. The period demonstrated strong cross-language development, robust API design, and readiness for broader adoption.
March 2025
12 Commits • 2 Features
Mar 1, 2025March 2025 — Summary for CODE-U-S/Coding_Test_Study. Delivered two core utility toolkits to accelerate data processing and text handling. The Numerical and Array Utility Suite provides operations such as filtering numbers by multiples, summing arrays up to a threshold, returning the first n elements, and index-based searches, enabling common data workflows to be composed quickly. The String Processing and Transformation Toolkit delivers normalization, formatting, sorting, and character-level operations to support robust text processing across applications. These initiatives improve development velocity, reduce duplication, and establish reusable building blocks for data ingestion, analytics, and UI-ready text handling. No explicit bug fixes were recorded in this data set for March; the focus was on delivering stable, modular features and improving code quality for future testing and maintenance.
12 Commits • 2 Features
Mar 1, 2025March 2025 — Summary for CODE-U-S/Coding_Test_Study. Delivered two core utility toolkits to accelerate data processing and text handling. The Numerical and Array Utility Suite provides operations such as filtering numbers by multiples, summing arrays up to a threshold, returning the first n elements, and index-based searches, enabling common data workflows to be composed quickly. The String Processing and Transformation Toolkit delivers normalization, formatting, sorting, and character-level operations to support robust text processing across applications. These initiatives improve development velocity, reduce duplication, and establish reusable building blocks for data ingestion, analytics, and UI-ready text handling. No explicit bug fixes were recorded in this data set for March; the focus was on delivering stable, modular features and improving code quality for future testing and maintenance.
March 2025
January 2025
6 Commits • 4 Features
Jan 1, 2025January 2025 (2025-01) monthly summary for CODE-U-S/Coding_Test_Study: Delivered a set of reusable algorithmic utilities across string processing, arithmetic logic, and problem-solving patterns, improving readiness for coding assessments and enabling faster feature work. No major bugs fixed this month. Achievements include: 1) String Utilities: character repetition and substring containment added; 2) Arithmetic and basic logic utilities: boolean-based arithmetic and pizza box calculation; 3) Cube fitting calculation; 4) Rock Paper Scissors mapping.
January 2025
6 Commits • 4 Features
Jan 1, 2025January 2025 (2025-01) monthly summary for CODE-U-S/Coding_Test_Study: Delivered a set of reusable algorithmic utilities across string processing, arithmetic logic, and problem-solving patterns, improving readiness for coding assessments and enabling faster feature work. No major bugs fixed this month. Achievements include: 1) String Utilities: character repetition and substring containment added; 2) Arithmetic and basic logic utilities: boolean-based arithmetic and pizza box calculation; 3) Cube fitting calculation; 4) Rock Paper Scissors mapping.
December 2024
21 Commits • 11 Features
Dec 1, 2024December 2024 performance summary for CODE-U-S/Coding_Test_Study: Delivered a suite of reusable utilities and expanded problem-solving coverage across strings, arrays, and math challenges. Focused on business value: enabling faster test data processing, reusable components across projects, and a scalable foundation for future learning tasks. No explicit bug fixes were logged in this period; major accomplishments stem from feature deliveries and breadth of Level 0/1 challenges. Demonstrated capabilities in algorithms, data structures, and code quality via clear commit traces.
21 Commits • 11 Features
Dec 1, 2024December 2024 performance summary for CODE-U-S/Coding_Test_Study: Delivered a suite of reusable utilities and expanded problem-solving coverage across strings, arrays, and math challenges. Focused on business value: enabling faster test data processing, reusable components across projects, and a scalable foundation for future learning tasks. No explicit bug fixes were logged in this period; major accomplishments stem from feature deliveries and breadth of Level 0/1 challenges. Demonstrated capabilities in algorithms, data structures, and code quality via clear commit traces.
December 2024
November 2024
19 Commits • 8 Features
Nov 1, 2024November 2024 performance summary for CODE-U-S/Coding_Test_Study: Delivered a multi-language suite of problem-solving utilities that automate calculations, classification, route analysis, and predictive insights. Emphasized clean interfaces, reusable components, and adherence to PCCE-style problem patterns. Technologies spanned Python, Java, and JavaScript, reflecting strong cross-language proficiency and end-to-end feature delivery.
November 2024
19 Commits • 8 Features
Nov 1, 2024November 2024 performance summary for CODE-U-S/Coding_Test_Study: Delivered a multi-language suite of problem-solving utilities that automate calculations, classification, route analysis, and predictive insights. Emphasized clean interfaces, reusable components, and adherence to PCCE-style problem patterns. Technologies spanned Python, Java, and JavaScript, reflecting strong cross-language proficiency and end-to-end feature delivery.
Activity
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Quality Metrics
Correctness95.8%
Maintainability95.2%
Architecture94.6%
Performance94.2%
AI Usage20.2%
Skills & Technologies
Programming Languages
AssemblyCC++GSJavaJavaScriptN/ANonePlain TextPython
Technical Skills
ASCII ArtASCII Art GenerationAlgorithmAlgorithm ImplementationAlgorithm implementationArray ManipulationArray SortingArray iterationArray processingBack-end DevelopmentBasic AlgorithmsBasic ArithmeticBasic C++Basic ProgrammingBig Integer Arithmetic
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