Queue implementation using singly linked list

[Ismael144]

Pull Request Template

Description

A Queue implementation using a singly linked list, its fast and efficient because of the linked list

Type of change

Please delete options that are not relevant.

• [ ] Bug fix (non-breaking change which fixes an issue)
• [x] New feature (non-breaking change which adds functionality)
• [x] Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist:

• [x] I ran bellow commands using the latest version of rust nightly.
• [x] I ran cargo clippy --all -- -D warnings just before my last commit and fixed any issue that was found.
• [x] I ran cargo fmt just before my last commit.
• [x] I ran cargo test just before my last commit and all tests passed.
• [x] I added my algorithm to the corresponding mod.rs file within its own folder, and in any parent folder(s).
• [x] I added my algorithm to DIRECTORY.md with the correct link.
• [x] I checked COUNTRIBUTING.md and my code follows its guidelines.

Please make sure that if there is a test that takes too long to run ( > 300ms), you #[ignore] that or try to optimize your code or make the test easier to run. We have this rule because we have hundreds of tests to run; If each one of them took 300ms, we would have to wait for a long time.

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 85.52189% with 43 lines in your changes missing coverage. Please review.

Project coverage is 95.24%. Comparing base (0dbaff5) to head (7de3d7f).

Files with missing lines	Patch %	Lines
.../data_structures/queue_using_singly_linked_list.rs	85.52%	43 Missing :warning:

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #814 +/- ## ========================================== - Coverage 95.36% 95.24% -0.13% ========================================== Files 311 312 +1 Lines 22673 22970 +297 ========================================== + Hits 21623 21877 +254 - Misses 1050 1093 +43 ```

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[vil02]

If I see correctly this is already implemented in queue.rs.

[vil02]

Closed as duplicate.