Add solution for Challenge 2 by x890c

[x890c]

Challenge 2 Solution

Submitted by: @x890c
Challenge: Challenge 2

Description

This PR contains my solution for Challenge 2.

Changes

• Added solution file to challenge-2/submissions/x890c/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 submission file that defines ReverseString(s string) string (rune-based reversal) and a main that reads one line from stdin, reverses it, and prints the result.

Changes

Cohort / File(s)	Change Summary
New Challenge 2 submission challenge-2/submissions/x890c/solution-template.go	New file adding public ReverseString(s string) string implemented by converting to runes, reversing the rune slice, and returning the string; includes a main that reads the first stdin line with bufio.Scanner and prints the reversed string.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~5 minutes

Possibly related PRs

• Add solution for Challenge 2 by AlexandrZlnov #620: Adds an exported ReverseString(s string) implementation in a Challenge 2 submission (rune-based reversal).
• Add solution for Challenge 2 by maikreyes #916: Adds an exported ReverseString(s string) function and stdin-based main in a different Challenge 2 submission file.
• Add solution for Challenge 2 by redstrike #596: Adds a ReverseString(s string) implementation and main that reads input under challenge-2/submissions/... analogous to this change.

🚥 Pre-merge checks | ✅ 2 | ❌ 1

❌ Failed checks (1 warning)

Check name	Status	Explanation	Resolution
Docstring Coverage	⚠️ Warning	Docstring coverage is 50.00% 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 clearly and concisely summarizes the main change: adding a solution for Challenge 2 by the contributor x890c.
Description check	✅ Passed	The description is well-structured and directly related to the changeset, providing context about the challenge submission, file location, and testing status.

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[coderabbitai]

Actionable comments posted: 1

🤖 Fix all issues with AI agents

In `@challenge-2/submissions/x890c/solution-template.go`:
- Around line 24-30: The ReverseString function currently reverses raw bytes
which corrupts multi-byte UTF-8 characters; change it to operate on runes:
convert the input string to a []rune, reverse the rune slice (swap elements from
ends toward the middle) and return string(...) of that rune slice so Unicode
characters are preserved; also fix formatting (add spaces around operators in
the for loop) to satisfy gofmt.