Add solution for Challenge 3 by onomica

[onomica]

Challenge 3 Solution

Submitted by: @onomica
Challenge: Challenge 3

Description

This PR contains my solution for Challenge 3.

Changes

• Added solution file to challenge-3/submissions/onomica/solution-template.go

Testing

• Solution passes all test cases
• Code follows Go best practices

Thank you for reviewing my submission! 🚀

[coderabbitai]

Walkthrough

Adds a new Go program implementing Employee and Manager types with methods to add, remove, find employees by ID, and compute average salary; includes a main demonstrating usage. (50 words)

Changes

Cohort / File(s)	Summary
Employee Management Solution challenge-3/submissions/onomica/solution-template.go	New file: defines Employee{ID, Name, Age, Salary} and Manager{Employees []Employee}; adds methods AddEmployee, RemoveEmployee, GetAverageSalary, FindEmployeeByID; includes main showing add/remove/find and average salary computation.

Sequence Diagram(s)

(Skipped — change does not introduce multi-component sequential interactions requiring visualization.)

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Possibly related PRs

• RezaSi/go-interview-practice#561: Adds a near-identical Employee/Manager implementation with the same methods in a different submission.
• RezaSi/go-interview-practice#788: Introduces the same types and methods (AddEmployee, RemoveEmployee, GetAverageSalary, FindEmployeeByID) in another submission.
• RezaSi/go-interview-practice#879: Adds an equivalent Employee/Manager solution including main usage in the challenge-3 submissions.

🚥 Pre-merge checks | ✅ 2 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately summarizes the main change: adding a solution file for Challenge 3 by onomica. It is concise, specific, and directly related to the changeset.
Description check	✅ Passed	The description is clearly related to the changeset, providing context about the Challenge 3 submission, identifying the submitter, and noting that the solution passes tests and follows best practices.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands and usage tips.}

[coderabbitai]

Actionable comments posted: 1

🤖 Fix all issues with AI agents

In `@challenge-3/submissions/onomica/solution-template.go`:
- Around line 46-54: FindEmployeeByID returns &v where v is the range-loop copy,
so callers get a pointer to a copy instead of the actual slice element; change
the loop to iterate indices (e.g., for i := range m.Employees) or keep both
index and value and return &m.Employees[i] so the function returns a pointer to
the actual Employee in the Manager.Employees slice (refer to FindEmployeeByID,
Manager, Employees, Employee).

[github-actions]

🎉 Auto-merged!

This PR was automatically merged after 2 days with all checks passing.

Thank you for your contribution, @onomica!