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Added solution for Project Euler problem 38. #3115

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merged 5 commits into from Oct 24, 2020
Merged

Added solution for Project Euler problem 38. #3115

merged 5 commits into from Oct 24, 2020

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fpringle
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@fpringle fpringle commented Oct 9, 2020

Name: Pandigital multiples

Take the number 192 and multiply it by each of 1, 2, and 3:

192 × 1 = 192
192 × 2 = 384
192 × 3 = 576
By concatenating each product we get the 1 to 9 pandigital, 192384576. We will call 192384576 the concatenated product of 192 and (1,2,3)

The same can be achieved by starting with 9 and multiplying by 1, 2, 3, 4, and 5, giving the pandigital, 918273645, which is the concatenated product of 9 and (1,2,3,4,5).

What is the largest 1 to 9 pandigital 9-digit number that can be formed as the concatenated product of an integer with (1,2, ... , n) where n > 1?

Reference: https://projecteuler.net/problem=38
Reference: #2695

  • 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 have a URL in its comments that points to Wikipedia or other similar explanation.
  • If this pull request resolves one or more open issues then the commit message contains Fixes: #{$ISSUE_NO}.

@fpringle fpringle changed the title Added solution for Project Euler problem 38. Fixes: #2695 Added solution for Project Euler problem 38. Reference: #2695 Oct 9, 2020
@fpringle fpringle changed the title Added solution for Project Euler problem 38. Reference: #2695 Added solution for Project Euler problem 38. Oct 10, 2020
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@dhruvmanila dhruvmanila added the awaiting changes A maintainer has requested changes to this PR label Oct 15, 2020
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@dhruvmanila dhruvmanila removed the awaiting changes A maintainer has requested changes to this PR label Oct 24, 2020
@dhruvmanila dhruvmanila merged commit 409438d into TheAlgorithms:master Oct 24, 2020
@fpringle fpringle deleted the problem_38 branch October 24, 2020 12:51
stokhos pushed a commit to stokhos/Python that referenced this pull request Jan 3, 2021
* Added solution for Project Euler problem 38. Fixes: TheAlgorithms#2695

* Update docstring and 0-padding in directory name. Reference: TheAlgorithms#3256

* Renamed is_9_palindromic to is_9_pandigital.

* Changed just-in-case return value for solution() to None.

* Moved exmplanation to module-level docstring and deleted unnecessary import
peRFectBeliever pushed a commit to peRFectBeliever/Python that referenced this pull request Apr 1, 2021
* Added solution for Project Euler problem 38. Fixes: TheAlgorithms#2695

* Update docstring and 0-padding in directory name. Reference: TheAlgorithms#3256

* Renamed is_9_palindromic to is_9_pandigital.

* Changed just-in-case return value for solution() to None.

* Moved exmplanation to module-level docstring and deleted unnecessary import
Panquesito7 pushed a commit to Panquesito7/Python that referenced this pull request May 13, 2021
* Added solution for Project Euler problem 38. Fixes: TheAlgorithms#2695

* Update docstring and 0-padding in directory name. Reference: TheAlgorithms#3256

* Renamed is_9_palindromic to is_9_pandigital.

* Changed just-in-case return value for solution() to None.

* Moved exmplanation to module-level docstring and deleted unnecessary import
shermanhui pushed a commit to shermanhui/Python that referenced this pull request Oct 22, 2021
* Added solution for Project Euler problem 38. Fixes: TheAlgorithms#2695

* Update docstring and 0-padding in directory name. Reference: TheAlgorithms#3256

* Renamed is_9_palindromic to is_9_pandigital.

* Changed just-in-case return value for solution() to None.

* Moved exmplanation to module-level docstring and deleted unnecessary import
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