Add solution for Challenge 2 by SemenTretyakov

[SemenTretyakov]

Challenge 2 Solution

Submitted by: @SemenTretyakov
Challenge: Challenge 2

Description

This PR contains my solution for Challenge 2.

Changes

• Added solution file to challenge-2/submissions/SemenTretyakov/solution-template.go

Testing

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

Thank you for reviewing my submission! 🚀

[coderabbitai]

Walkthrough

A new Go program is added under challenge-2/submissions/SemenTretyakov/ that implements string reversal. The solution reads a single line from standard input, reverses it character-by-character using a ReverseString function that operates on runes via a two-pointer swap technique, and prints the reversed output.

Changes

Cohort / File(s)	Summary
Challenge 2 String Reversal Submission challenge-2/submissions/SemenTretyakov/solution-template.go	Added new file with ReverseString(s string) string function that reverses input by converting to runes and swapping characters from both ends, plus main function that reads stdin and prints reversed output

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~8 minutes

Possibly related PRs

• Add solution for Challenge 2 by vyuzzzh #1117: Adds identical ReverseString function and main flow in a different submission directory for the same challenge.
• Add solution for Challenge 2 by RP-Guruh #865: Implements the same rune-based two-pointer string reversal in another challenge-2 submission.
• Add solution for Challenge 2 by ansmonjol #752: Adds identical ReverseString implementation with main that reads, reverses, and prints a line in a challenge-2 submission.

🚥 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 specifically identifies the main change: adding a solution for Challenge 2 by a specific contributor, which matches the changeset.
Description check	✅ Passed	The description is directly related to the changeset, explaining the Challenge 2 solution submission and the specific file location, which aligns with the actual changes made.

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