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GeezerVison is showing github.com — Optimize Node.has_loop to use constant auxiliary space (Fixes #15576) by ganavih321-bot · Pull Request #15684 · TheAlgorithms/Python

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@ganavih321-bot

@ganavih321-bot ganavih321-bot commented Nov 1, 2026 •
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Describe your change

  • Add an algorithm?
  • Fix a bug or typo in an existing algorithm?
  • Add or change doctests? -- Note: Please avoid changing both code and tests in a single pull request.
  • Documentation change?

Checklist

  • I have read CONTRIBUTING.md.
  • This pull request is all my own work -- I have not plagiarized.
  • I know that pull requests will not be merged if they fail the automated tests.
  • This PR only changes one algorithm file. To ease review, please open separate PRs for separate algorithms.
  • All new Python files are placed inside an existing directory.
  • All filenames are in all lowercase characters with no spaces or dashes.
  • All functions and variable names follow Python naming conventions.
  • All function parameters and return values are annotated with Python type hints.
  • All functions have doctests that pass the automated testing.
  • All new algorithms include at least one URL that points to Wikipedia or another similar explanation.
  • If this pull request resolves one or more open issues, then the description above includes the issue number(s) with a closing keyword: "Fixes #ISSUE-NUMBER".

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ganavi
Optimize Node.has_loop to use constant auxiliary space (Fixes TheAlgo…
6a68c34
…rithms#15576)
@algorithms-keeper algorithms-keeper Bot added awaiting reviews This PR is ready to be reviewed enhancement This PR modified some existing files labels Nov 1, 2026
@pre-commit-ci
[pre-commit.ci] auto fixes from pre-commit.com hooks
1fd7a6e
for more information, see https://pre-commit.ci
@algorithms-keeper algorithms-keeper Bot added tests are failing Do not merge until tests pass and removed tests are failing Do not merge until tests pass labels Nov 1, 2026

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@ganavih321-bot
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