DaleStudy/leetcode-study
Nov 2025 – Mar 2026
5 Months active
Languages Used
TypeScriptJava
Technical Skills
TypeScriptalgorithm designalgorithm developmentbit manipulationdata structuresdepth-first search
juhui
PROFILE
Juhui
Over five months, Wngml0108 developed a robust algorithmic solutions library in the DaleStudy/leetcode-study repository, focusing on reusable modules for interview preparation and data-driven features. Leveraging Java and TypeScript, Wngml0108 implemented core utilities for input validation, array processing, and dynamic programming, as well as solutions for linked lists, binary trees, and scheduling problems. The work emphasized clean code practices, modular design, and incremental delivery, resulting in improved maintainability and scalability. By integrating efficient data structures and algorithmic techniques such as bit manipulation and depth-first search, Wngml0108 enabled faster problem solving and streamlined onboarding for future contributors and learners.
Overall Statistics
Feature vs Bugs
92%Features
Repository Contributions
28Total
Bugs
1
Commits
28
Features
11
Lines of code
866
Activity Months5
Your Network
289 peopleWork History
March 2026
5 Commits • 1 Features
Mar 1, 2026March 2026 monthly summary for DaleStudy/leetcode-study: Expanded the problem-solving library with multiple array and string algorithm solutions, including duplicate detection using HashSet, Two Sum solver, top-K frequent elements finder, longest consecutive sequence length, plus climbing stairs and valid anagram. Delivered across five commits (WEEK 1 Solutions x4, WEEK 2 Solutions), demonstrating steady weekly delivery and code-review readiness. No major bugs documented; focus was on feature expansion, performance improvements, and maintainability. Overall impact: enhanced library usability for practice and interview prep, enabling faster problem solving and improved reuse. Technologies/skills: algorithms design, data structures (HashSet), performance-oriented coding, modularization, Git versioning and sprint-based development.
5 Commits • 1 Features
Mar 1, 2026March 2026 monthly summary for DaleStudy/leetcode-study: Expanded the problem-solving library with multiple array and string algorithm solutions, including duplicate detection using HashSet, Two Sum solver, top-K frequent elements finder, longest consecutive sequence length, plus climbing stairs and valid anagram. Delivered across five commits (WEEK 1 Solutions x4, WEEK 2 Solutions), demonstrating steady weekly delivery and code-review readiness. No major bugs documented; focus was on feature expansion, performance improvements, and maintainability. Overall impact: enhanced library usability for practice and interview prep, enabling faster problem solving and improved reuse. Technologies/skills: algorithms design, data structures (HashSet), performance-oriented coding, modularization, Git versioning and sprint-based development.
March 2026
February 2026
1 Commits • 1 Features
Feb 1, 2026February 2026 (2026-02) monthly summary for DaleStudy/leetcode-study. Focused on expanding the algorithmic toolkit and scheduling utilities. Delivered core features in the Algorithmic Solutions Library, notably LCA in BST and a Meeting Feasibility checker, with commit c5e2c82915d2fcd81287843f6b973077646ff896. No major bugs reported this month. Impact includes enabling scalable tree-query operations and automated attendance feasibility checks, reducing manual reasoning and speeding up problem-solving workflows. Skills demonstrated include data structures (BST), algorithm design, and creating clean, reusable interfaces for future LeetCode study features and scheduling tools.
February 2026
1 Commits • 1 Features
Feb 1, 2026February 2026 (2026-02) monthly summary for DaleStudy/leetcode-study. Focused on expanding the algorithmic toolkit and scheduling utilities. Delivered core features in the Algorithmic Solutions Library, notably LCA in BST and a Meeting Feasibility checker, with commit c5e2c82915d2fcd81287843f6b973077646ff896. No major bugs reported this month. Impact includes enabling scalable tree-query operations and automated attendance feasibility checks, reducing manual reasoning and speeding up problem-solving workflows. Skills demonstrated include data structures (BST), algorithm design, and creating clean, reusable interfaces for future LeetCode study features and scheduling tools.
January 2026
13 Commits • 5 Features
Jan 1, 2026January 2026: Delivered a comprehensive set of algorithmic solutions and quality improvements in DaleStudy/leetcode-study. New features span core data structures and common interview problems, including Character Replacement and Bit Reversal, Linked List operations (cycle detection, removal of nth node from end, and reorder), Binary Tree inversion and same-tree checks, Interval merging and greedy non-overlapping selection, and Missing Number in Array (arithmetic-sum and sorting-based). In addition, a dedicated code quality cleanup improved readability and maintainability (newline at EOF, formatting tweaks, and file renames). The work provides clear traceability to Weeks 8–12 milestones and strengthens the repository as a reliable interview-prep resource for developers.
13 Commits • 5 Features
Jan 1, 2026January 2026: Delivered a comprehensive set of algorithmic solutions and quality improvements in DaleStudy/leetcode-study. New features span core data structures and common interview problems, including Character Replacement and Bit Reversal, Linked List operations (cycle detection, removal of nth node from end, and reorder), Binary Tree inversion and same-tree checks, Interval merging and greedy non-overlapping selection, and Missing Number in Array (arithmetic-sum and sorting-based). In addition, a dedicated code quality cleanup improved readability and maintainability (newline at EOF, formatting tweaks, and file renames). The work provides clear traceability to Weeks 8–12 milestones and strengthens the repository as a reliable interview-prep resource for developers.
January 2026
December 2025
1 Commits • 1 Features
Dec 1, 2025December 2025 Monthly Summary for DaleStudy/leetcode-study: Delivered a reusable Algorithmic Problem Solving Library with three new solutions: Water Container max area, Word Dictionary add/search, and Parentheses Validation. This feature set provides reusable algorithms and data structures for interview prep, enabling faster problem solving and scalable onboarding. Maintained code quality with a focused Week 06 solution commit (a155a5cdf3379c872a904d8ec3a116aff477f0a6). No major bugs fixed this month. Impact: strengthened the repository with a cohesive problem-solving toolkit, enabling rapid iteration and expansion. Technologies/Skills demonstrated include two-pointer technique, stack-based validation, and a Trie-like dictionary implementation; demonstrated modular design and incremental delivery.
December 2025
1 Commits • 1 Features
Dec 1, 2025December 2025 Monthly Summary for DaleStudy/leetcode-study: Delivered a reusable Algorithmic Problem Solving Library with three new solutions: Water Container max area, Word Dictionary add/search, and Parentheses Validation. This feature set provides reusable algorithms and data structures for interview prep, enabling faster problem solving and scalable onboarding. Maintained code quality with a focused Week 06 solution commit (a155a5cdf3379c872a904d8ec3a116aff477f0a6). No major bugs fixed this month. Impact: strengthened the repository with a cohesive problem-solving toolkit, enabling rapid iteration and expansion. Technologies/Skills demonstrated include two-pointer technique, stack-based validation, and a Trie-like dictionary implementation; demonstrated modular design and incremental delivery.
November 2025
8 Commits • 3 Features
Nov 1, 2025Monthly Summary for 2025-11: Delivered core utilities in DaleStudy/leetcode-study to bolster data integrity, performance, and mathematical modeling. Implemented Input Validation and Content Verification Utilities, Fast Analytics and Array Processing Utilities, and Dynamic Programming/Math Computation Utilities. These changes enable reliable data pipelines, faster analytics, and scalable modeling for content-based features.
8 Commits • 3 Features
Nov 1, 2025Monthly Summary for 2025-11: Delivered core utilities in DaleStudy/leetcode-study to bolster data integrity, performance, and mathematical modeling. Implemented Input Validation and Content Verification Utilities, Fast Analytics and Array Processing Utilities, and Dynamic Programming/Math Computation Utilities. These changes enable reliable data pipelines, faster analytics, and scalable modeling for content-based features.
November 2025
Activity
Loading activity data...
Quality Metrics
Correctness99.4%
Maintainability90.0%
Architecture90.8%
Performance93.6%
AI Usage20.0%
Skills & Technologies
Programming Languages
JavaTypeScript
Technical Skills
Code FormattingCode QualityJavaJava programmingTypeScriptalgorithm designalgorithm developmentbinary tree manipulationbit manipulationclean code practicesdata structuresdepth-first searchfile managementlinked listsproblem solving
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline