hanaro-algorithm/algorithm
Oct 2024 – Apr 2025
5 Months active
Languages Used
JavaSQLJavaScriptPython
Technical Skills
AlgorithmBacktrackingBreadth-First Search (BFS)Code RefactoringDepth-First Search (DFS)Java
jennyjoo
PROFILE
Jennyjoo
Over five months, 100cllr developed and expanded the hanaro-algorithm/algorithm repository, delivering eight new features focused on algorithmic problem solving and data analytics. They implemented Java modules for graph traversal, dynamic programming, and grid optimization, applying techniques such as BFS, DFS, and prefix sums to address routing, numeric analysis, and aggregation challenges. Their work included SQL queries for route distance and sales data analytics, as well as systematic code organization to support weekly problem sets and onboarding. By emphasizing maintainability and performance, 100cllr ensured the repository provided a robust foundation for scalable analytics and practical algorithm practice in Java and SQL.
Overall Statistics
Feature vs Bugs
100%Features
Repository Contributions
13Total
Bugs
0
Commits
13
Features
8
Lines of code
1,558
Activity Months5
Your Network
10 people
Work History
April 2025
3 Commits • 3 Features
Apr 1, 2025April 2025: Delivered three core features in hanaro-algorithm/algorithm, enhancing numeric analysis, routing, and optimization capabilities. Implementations are production-ready Java modules with clear algorithmic approaches and trackable commits.
3 Commits • 3 Features
Apr 1, 2025April 2025: Delivered three core features in hanaro-algorithm/algorithm, enhancing numeric analysis, routing, and optimization capabilities. Implementations are production-ready Java modules with clear algorithmic approaches and trackable commits.
April 2025
January 2025
1 Commits • 1 Features
Jan 1, 2025January 2025 monthly summary for hanaro-algorithm/algorithm: Delivered three Baekjoon algorithm solutions (grid traversal using DFS, graph connectivity using BFS/DFS, and 2D plane area calculation using BFS) implemented as separate Java files under the baekjoon directory. This work expands the problem-solving library and improves coverage of common algorithm patterns for developers and students.
January 2025
1 Commits • 1 Features
Jan 1, 2025January 2025 monthly summary for hanaro-algorithm/algorithm: Delivered three Baekjoon algorithm solutions (grid traversal using DFS, graph connectivity using BFS/DFS, and 2D plane area calculation using BFS) implemented as separate Java files under the baekjoon directory. This work expands the problem-solving library and improves coverage of common algorithm patterns for developers and students.
December 2024
4 Commits • 1 Features
Dec 1, 2024December 2024: Expanded Baekjoon practice solutions and reorganized the repository to support weekly problem sets in hanaro-algorithm/algorithm. Delivered breadth of new solutions across categories, introduced a weekly problem folder structure (27주차, 29주차, 31주차), and established a scalable organization pattern for future weekly releases. This work enhances problem availability, accelerates onboarding for new contributors, and improves maintainability and discoverability of practice content. No major bugs reported this month; changes are incremental, well-documented, and focused on long-term value.
4 Commits • 1 Features
Dec 1, 2024December 2024: Expanded Baekjoon practice solutions and reorganized the repository to support weekly problem sets in hanaro-algorithm/algorithm. Delivered breadth of new solutions across categories, introduced a weekly problem folder structure (27주차, 29주차, 31주차), and established a scalable organization pattern for future weekly releases. This work enhances problem availability, accelerates onboarding for new contributors, and improves maintainability and discoverability of practice content. No major bugs reported this month; changes are incremental, well-documented, and focused on long-term value.
December 2024
November 2024
1 Commits • 1 Features
Nov 1, 2024November 2024 monthly summary for hanaro-algorithm/algorithm: Delivered Graph Pathfinding and Sales Data Aggregation Capabilities, reinforcing business value through improved routing decisions and cross-source analytics. Focus was on implementing graph traversal (DFS, BFS) for pathfinding and data aggregation SQL queries to unify sales data from multiple sources under constraint permutations. The work includes a single commit 431bf40cd4727e39d6ae0ee3556c13363c7e7e15 with message '26주차 문제풀이'.
November 2024
1 Commits • 1 Features
Nov 1, 2024November 2024 monthly summary for hanaro-algorithm/algorithm: Delivered Graph Pathfinding and Sales Data Aggregation Capabilities, reinforcing business value through improved routing decisions and cross-source analytics. Focus was on implementing graph traversal (DFS, BFS) for pathfinding and data aggregation SQL queries to unify sales data from multiple sources under constraint permutations. The work includes a single commit 431bf40cd4727e39d6ae0ee3556c13363c7e7e15 with message '26주차 문제풀이'.
October 2024
4 Commits • 2 Features
Oct 1, 2024Month: 2024-10 | hanaro-algorithm/algorithm: Implemented Java algorithm problem solutions with performance refactors and added weekly problem implementations; introduced Subway Route Distance Analytics SQL queries with totals and averages across routes. No major bugs fixed this month; minor stability fixes and refactor cleanups completed. Business impact: expanded problem-solving coverage, improved runtime performance, and enabled deeper data insights for routing analytics. Technologies demonstrated: Java, SQL, refactoring, performance optimization, and data querying on hierarchical structures.
4 Commits • 2 Features
Oct 1, 2024Month: 2024-10 | hanaro-algorithm/algorithm: Implemented Java algorithm problem solutions with performance refactors and added weekly problem implementations; introduced Subway Route Distance Analytics SQL queries with totals and averages across routes. No major bugs fixed this month; minor stability fixes and refactor cleanups completed. Business impact: expanded problem-solving coverage, improved runtime performance, and enabled deeper data insights for routing analytics. Technologies demonstrated: Java, SQL, refactoring, performance optimization, and data querying on hierarchical structures.
October 2024
Activity
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Quality Metrics
Correctness82.4%
Maintainability80.0%
Architecture72.2%
Performance76.2%
AI Usage20.0%
Skills & Technologies
Programming Languages
JavaJavaScriptPythonSQL
Technical Skills
AlgorithmAlgorithm ImplementationBacktrackingBreadth First SearchBreadth-First SearchBreadth-First Search (BFS)Code OrganizationCode RefactoringCountingData AggregationData StructuresDepth First SearchDepth-First Search (DFS)Dynamic ProgrammingGraph Traversal
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