* Add rail fence cipher encoder & decoder

* Add functions to encode & decode strings using the rail fence cipher method
* Add unit tests covering empty strings, pair & odd number of characters in the input string, n=3 & n=4
* Add a README.md for the algorithm
* Update root README.md to link to the new algorithm

* Rename the CI workflow file.

Co-authored-by: Oleksii Trekhleb <trehleb@gmail.com>

…ithms into merge

* Add word to avoid misinterpretation

* Rename the CI workflow file.

Co-authored-by: Sagid Magomedov <sagid-m@yandex-team.ru>
Co-authored-by: Oleksii Trekhleb <trehleb@gmail.com>

…thms into merge

…thms into merge

* Linked List Spanish Traslation

* Rename the CI workflow file.

Co-authored-by: Oleksii Trekhleb <trehleb@gmail.com>

…thms into merge

Bumps [node-notifier](https://github.com/mikaelbr/node-notifier) from 8.0.0 to 8.0.1.
- [Release notes](https://github.com/mikaelbr/node-notifier/releases)
- [Changelog](https://github.com/mikaelbr/node-notifier/blob/v8.0.1/CHANGELOG.md)
- [Commits](mikaelbr/node-notifier@v8.0.0...v8.0.1)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

* Add divide and conquer example: best time to buy and sell stocks.

* Add divide and conquer example: best time to buy and sell stocks.

* Add dynamic programming version.

…ithms into merge

* Add ukrainian translate.

* Error correction.

* Add a link to UA version to all README.file.

…ithms into merge

* add the DS link

* Finish translating math

* add Arabic version of the README FILE

* add Arabic version of the README FILE

* add the arabic readme file link to main readme file

* add the arabic readme file link to main readme file

* add the arabic readme file link to main readme file

Co-authored-by: Oleksii Trekhleb <trehleb@gmail.com>

The existing insertion sort implementation began by iterating from
0 until the end of the array, but it is only necessary to
iterate from 1 until the end of the array, since at the
0th index, there is nothing to compare to the left of
the element.

In order to complete this change, I also had to update the tests
to reflect the fact that the algorithm visits each index 1 less
time.

Finally, I corrected the grammar/wording of the comments.

Co-authored-by: Oleksii Trekhleb <trehleb@gmail.com>

The JSDoc comment states the valid position range is '1 to 75', but the code validates against topMaxValidPosition = 70.

This PR fixes the documentation to match the implementation.

String.prototype.substr() is deprecated and may be removed in future
JavaScript engine versions (Annex B of the ECMAScript specification).

Replaced all occurrences in the codebase with String.prototype.substring():

- src/algorithms/string/rabin-karp/rabinKarp.js
- src/algorithms/cryptography/polynomial-hash/__test__/SimplePolynomialHash.test.js
- src/algorithms/cryptography/polynomial-hash/__test__/PolynomialHash.test.js

The behavior is identical since all substr(start, length) calls are
converted to substring(start, start + length) with the same arguments.

All existing tests pass.