labuladong/fucking-algorithm
Crack LeetCode, not only how, but also why.
135.9k stars · 23.5k forks · Markdown
This repo isn't software code, so code checks are limited.
Caution
Caution: no license file.
Why
- GitHub found no license file, so the content is not clearly licensed for reuse. (source 1)
What would change this
- A license file is added.
- Partly checked: people (Only 2 human commits were found, too few to judge who maintains the project.)
Maintenance
CompleteSteady
- Human commits, 30 days
- 0
- Human commits, 90 days
- 0
- Human commits, 365 days
- 2
- Bot share of commits, 365 days
- 0%
- Last commit
- Feb 28, 2026 (7 months ago)
- Last human commit
- Feb 28, 2026 (7 months ago)
- Authors, 90 days
- 0
- Last release
- none found
- Median PR merge time
- 10 days
Responsiveness: of 4 recent issues, n/a got a maintainer reply. Median first response: n/a.
- Only 4 recent issues can be checked for a response, too few to measure response time.
Sources: Commits, Releases, Merged pull requests, Issues
People
Partial- Owner
- Personal account
- Commits sampled
- 2 since Oct 14, 2025
- Authors for half of commits
- 1
- Authors for 80% of commits
- 2
- Contributors
- 86
Top committers
- IcyDesert: 50% of commits
- labuladong: 50% of commits
- Only 2 human commits were found, too few to judge who maintains the project.
Sources: Commits, Contributors
Stars
CompleteMostly organic, confidence high
Bursts
- Apr 9, 2020 to Apr 24, 2020: about 11.3k more stars than usual, peak 1.5k in one day, a shape we can't classify. Outside explanation: a jump in forks.
- Jun 23, 2020 to Jun 27, 2020: about 933 more stars than usual, peak 444 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
- Jul 27, 2020 to Jul 29, 2020: about 424 more stars than usual, peak 244 in one day, a shape we can't classify. Outside explanation: a jump in issues and pull requests.
- Aug 12, 2020 to Aug 13, 2020: about 412 more stars than usual, peak 380 in one day, a spike that tapers off. No outside explanation found, so this burst is unexplained.
- Aug 16, 2020 to Aug 20, 2020: about 3.5k more stars than usual, peak 1.5k in one day, a spike that tapers off. No outside explanation found, so this burst is unexplained.
- Sep 13, 2020 to Sep 15, 2020: about 680 more stars than usual, peak 435 in one day, a spike that tapers off. No outside explanation found, so this burst is unexplained.
- Oct 26, 2020 to Oct 29, 2020: about 1.1k more stars than usual, peak 439 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
- Dec 2, 2020 to Dec 3, 2020: about 620 more stars than usual, peak 517 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
- Jan 17, 2021 to Jan 21, 2021: about 963 more stars than usual, peak 422 in one day, a spike that tapers off. Outside explanation: a jump in issues and pull requests.
- Jun 24, 2021 to Jun 30, 2021: about 577 more stars than usual, peak 212 in one day, a shape we can't classify. Outside explanation: a jump in issues and pull requests.
- Feb 23, 2022 to Mar 3, 2022: about 777 more stars than usual, peak 248 in one day, a spike that tapers off. No outside explanation found, so this burst is unexplained.
- Sep 6, 2023 to Sep 18, 2023: about 1.2k more stars than usual, peak 238 in one day, a shape we can't classify. No outside explanation found, so this burst is unexplained.
- Aug 28, 2025 to Aug 30, 2025: about 70 more stars than usual, peak 45 in one day, a spike that tapers off. We couldn't check for an outside explanation.
- Dec 14, 2025 to Jan 2, 2026: about 1.5k more stars than usual, peak 238 in one day, a spike that tapers off. No outside explanation found, so this burst is unexplained.
- Jun 14, 2026 to Jun 26, 2026: about 881 more stars than usual, peak 336 in one day, a spike that tapers off. No outside explanation found, so this burst is unexplained.
- Sep 7, 2026 to Sep 7, 2026: about 54 more stars than usual, peak 69 in one day, a spike that tapers off. We couldn't check for an outside explanation.
- 8 stars GitHub has since removed (tracked since Oct 13, 2026).
Anyone can buy stars for any repo; bursts alone don't prove the owner did.
- Some star bursts have no matching forks, issues, releases, or launch coverage.
- Anyone can buy stars for any repo, so this describes the star history only.
- Engagement is not compared for non-code or mirror repositories.
Sources: How star history is analyzed
Risk
CompleteFlags
- Warning: GitHub finds no license for this repository, so default copyright rules apply and no reuse is granted. Details
- Info: The OpenSSF Scorecard for this project is 2.5 out of 10 (deps.dev). Details
License
- Now
- No license found
- A year ago
- Not known
Packages
No published packages found.
OpenSSF Scorecard: 2.5 out of 10 (via deps.dev).
Sources: GitHub: labuladong/fucking-algorithm
Badge
Add this to a README to show the current verdict:
[](https://reporadar.ai/labuladong/fucking-algorithm)Earlier verdicts
- Oct 14, 2026: Caution
- Oct 13, 2026: Caution
- Oct 13, 2026: Caution
Computed 20 hours ago · method 2026.10.2