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Added postfix-prefix conversion - #10474

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arnavjagia wants to merge 4 commits into
TheAlgorithms:masterfrom
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Open

Added postfix-prefix conversion#10474
arnavjagia wants to merge 4 commits into
TheAlgorithms:masterfrom
arnavjagia:master

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@arnavjagia

@arnavjagia arnavjagia commented Oct 14, 2023

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Describe your change:

Added postfix-prefix conversion

  • Add an algorithm?
  • Fix a bug or typo in an existing algorithm?
  • 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".

@algorithms-keeper algorithms-keeper Bot added the awaiting reviews This PR is ready to be reviewed label Oct 14, 2023
@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 Oct 14, 2023
Comment on lines +19 to +20
Raises:
IndexError: If the expression is invalid or contains an invalid operator.

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  1. Could you add checks in your code for these cases rather than relying on Stack's IndexError? That way we can have more useful error messages for this algorithm.
  2. Could you add a doctest that tests an invalid expression and a doctest that tests an invalid operator?

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3 participants