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HA

krahets/hello-algo

《Hello 算法》：动画图解、一键运行的数据结构与算法教程。支持简中、繁中、English、日本語，提供 Python, Java, C++, C, C#, JS, Go, Swift, Rust, Ruby, Kotlin, TS, Dart 等代码实现

129k Stars16k Forks41 Open Issues129k WatchersJavaNOASSERTION
Data Tool
Review Readiness

This repository page is useful for visitors, but Git-Stars keeps it out of search indexing until more original evidence and comparison context are available.

45

review score

Needs original analysisNeeds license signalNeeds sources
Decision Snapshot

Problem solved

It addresses the difficulty beginners face in learning data structures and algorithms by providing clear, animated explanations and practical code examples.

Deployment reality

Setup instructions are not clear enough yet. Non-coders should ask Codex or Claude to read the README, list prerequisites, create an install checklist, and identify hosted alternatives before deploying.

Commercial use

The recorded license is NOASSERTION. This is a useful commercial-use signal, but teams should still verify license text, dependencies, model/API terms, and trademark constraints.

Capability ceiling

krahets/hello-algo still needs a clearer capability analysis. Use the metadata as a discovery signal, not as a production recommendation.

Source and compliance noteLast synced: Aug 16, 2026

Git-Stars is independent and not affiliated with GitHub or this project. Analysis may be AI-assisted and based on public repository metadata plus short README-derived summaries. We do not mirror full README files, docs, issues, or social comments.

Original GitHub sourceMethodologyEditorial Policy
Editorial Evaluation

krahets/hello-algo is tracked as a Java project in the Data Tool area. This evaluation combines public GitHub metadata, category signals, short source summaries, and Git-Stars editorial rules rather than copying project documentation.

Momentum check: the repository has 129k total stars, with +13 today, +116 this week, and +857 this month. These growth windows help distinguish durable adoption from short-lived visibility spikes.

Maintenance check: current activity is Moderate; the latest push was 82 days ago, and the open issue queue is 41, about 0.03% of total stars. Treat this as an adoption signal, not a substitute for engineering due diligence.

Adoption check: 16k forks and 129k watchers suggest how often the project is reused or followed. License signal: NOASSERTION. Always verify license compatibility before commercial or internal use.

Practical fit: this project is most relevant when you need Java teams evaluating ecosystem-native tooling. Be cautious when you need a legal review, security audit, or production SLA.

Source check: Git-Stars currently has 1 explicit source reference(s) for this report and a recent growth signal of 857. Follow the original GitHub repository for final install, security, and release information.

Evidence Checklist

Analysis

Limited

Needs stronger original analysis before indexing.

Sources

Limited

Needs clearer source references.

License

Limited

License is unknown and should be checked before commercial use.

Maintenance

Ready

Recent activity is visible in repository metadata.

Alternatives

Ready

Enough nearby projects exist for comparison.

Best For
  • Java teams evaluating ecosystem-native tooling
  • teams that prefer mature projects with broad adoption signals
Avoid When
  • you need a legal review, security audit, or production SLA
Adoption Signals

Momentum

129k Stars

Reuse

16k Forks

Attention

129k Watchers

Maintenance

moderate

License

NOASSERTION

Open issues

41

Overview

An open-source, beginner-friendly tutorial for data structures and algorithms, featuring animated illustrations and runnable code across 12 programming languages.

Key Features

- Animated diagrams make concepts easy to understand. - Code can be run with one click to reinforce learning. - Supports 12 programming languages including Python, Java, C++, and Go.

Tool Positioning

Data Tool

Databases, data pipelines, ETL, analytics, and vector search

Quick Start

Start from the original GitHub README and release notes before installing. Git-Stars summarizes setup signals but does not mirror full project documentation.

View on GitHub Project Homepage
Project Activity

80

Health Score

Moderate

Commit Activity

Nov 4, 2022

Created

Jul 24, 2026

Last push

Source Trail

GitHub repository metadata

metadata

Star History

Star history will appear after daily syncs accumulate data.

Community Health
16k

Forks

41

Open

129k

Watchers

Owner
HA

krahets

GitHub profile
Topics & Language
Javaalgoalgorithmalgorithmsbookdata-structuredata-structuresdata-structures-and-algorithmsdsaeducationleetcodeprogramming
Ecosystem & Usage
GitHub Repository Project Website
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License
NOASSERTION
CreatedNov 4, 2022
Last pushJul 24, 2026
Last syncedAug 16, 2026
Repository Standards

✓

License

✓

Forked

~ Moderate

Maintained