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[PR #1238] feat: added extended Euclidean algorithm #1835

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opened 2026-01-29 15:25:08 +00:00 by claunia · 0 comments
claunia commented 2026-01-29 15:25:08 +00:00
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Original Pull Request: https://github.com/TheAlgorithms/C/pull/1238

State: closed
Merged: Yes

Description of Change

euclidean_algorithm_extended.c is implemented and lives in the math subdirectory.

In addition to finding the greatest common divisor of integers a and b, this algorithm will find values x and y such that ax+by=gcd(a,b).

Checklist

  • Added description of change
  • Added file name matches File name guidelines
  • Added tests and example, test must pass
  • Relevant documentation/comments is changed or added
  • PR title follows semantic commit guidelines
  • Search previous suggestions before making a new one, as yours may be a duplicate.
  • I acknowledge that all my contributions will be made under the project's license.

Notes: added extended Euclidean algorithm

**Original Pull Request:** https://github.com/TheAlgorithms/C/pull/1238 **State:** closed **Merged:** Yes --- #### Description of Change euclidean_algorithm_extended.c is implemented and lives in the math subdirectory. In addition to finding the greatest common divisor of integers a and b, this algorithm will find values x and y such that $ax+by=gcd(a,b)$. #### Checklist <!-- Remove items that do not apply. For completed items, change [ ] to [x]. --> - [x] Added description of change - [x] Added file name matches [File name guidelines](https://github.com/TheAlgorithms/C/blob/master/CONTRIBUTING.md#File-Name-guidelines) - [x] Added tests and example, test must pass - [x] Relevant documentation/comments is changed or added - [x] PR title follows semantic [commit guidelines](https://github.com/TheAlgorithms/C/blob/master/CONTRIBUTING.md#Commit-Guidelines) - [x] Search previous suggestions before making a new one, as yours may be a duplicate. - [x] I acknowledge that all my contributions will be made under the project's license. Notes: added extended Euclidean algorithm
claunia added the pull-request label 2026-01-29 15:25:08 +00:00
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Reference: starred/C#1835
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