Add solution for Challenge 2 by ADEMOLA200

[ADEMOLA200]

Challenge 2 Solution

Submitted by: @ADEMOLA200
Challenge: Challenge 2

Description

This PR contains my solution for Challenge 2.

Changes

• Added solution file to challenge-2/submissions/ADEMOLA200/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 for challenge-2 that implements a ReverseString function using rune slice reversal to handle Unicode characters correctly. Includes a main function that reads a line from standard input, reverses it, and prints the result.

Changes

Cohort / File(s)	Summary
Challenge-2 Submission challenge-2/submissions/ADEMOLA200/solution-template.go	New file with ReverseString(s string) string function that reverses input by converting to runes, reversing the slice, and converting back. Includes main function for reading stdin and printing reversed output.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~8 minutes

The addition is straightforward with standard input/output handling and a focused string reversal algorithm. Review focus areas: correctness of rune-based reversal for Unicode support and proper error handling for scanner operations.

Possibly related PRs

• Add solution for Challenge 2 by Be1chenok #579: Adds identical ReverseString(s string) string function with rune-slice reversal and similar main flow in challenge-2 submission.
• Add solution for Challenge 2 by Kosench #560: Implements the same ReverseString exported function using rune-slice reversal under challenge-2/submissions with comparable input/output logic.
• Add solution for Challenge 2 by macborowy #572: Adds matching ReverseString(s string) string function that reverses strings via rune conversion with similar challenge-2 submission structure.

Pre-merge checks

❌ 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%.	You can run @coderabbitai generate docstrings to improve docstring coverage.

✅ Passed checks (2 passed)

Check name	Status	Explanation
Title Check	✅ Passed	The title "Add solution for Challenge 2 by ADEMOLA200" directly and clearly summarizes the main change in the changeset. The pull request introduces a new solution file for Challenge 2 by a contributor named ADEMOLA200, which is exactly what the title conveys. The title is specific, concise, and free of vague language or unnecessary noise, making it easy for teammates to understand the primary purpose of this changeset.
Description Check	✅ Passed	The description is clearly related to the changeset and provides context for the submission. It correctly identifies the file being added (challenge-2/submissions/ADEMOLA200/solution-template.go), explains that it's a Challenge 2 solution, and includes information about testing and code quality checks. While the description could provide more technical detail about what the solution does, it is sufficiently specific and directly describes the content being merged.

---

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: 0

🧹 Nitpick comments (1)

challenge-2/submissions/ADEMOLA200/solution-template.go (1)

9-21: Consider adding error handling for scanner.

The main function correctly reads input and prints the reversed string. However, when scanner.Scan() returns false, it could be due to either EOF or an error. Consider checking scanner.Err() for completeness.

Optional enhancement:

 func main() {
 	// Read input from standard input
 	scanner := bufio.NewScanner(os.Stdin)
 	if scanner.Scan() {
 		input := scanner.Text()
 
 		// Call the ReverseString function
 		output := ReverseString(input)
 
 		// Print the result
 		fmt.Println(output)
 	}
+	if err := scanner.Err(); err != nil {
+		fmt.Fprintf(os.Stderr, "Error reading input: %v\n", err)
+		os.Exit(1)
+	}
 }

📜 Review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 1bda5b0 and ebfa86a.

📒 Files selected for processing (1)

• challenge-2/submissions/ADEMOLA200/solution-template.go (1 hunks)

🔇 Additional comments (2)

challenge-2/submissions/ADEMOLA200/solution-template.go (2)

1-7: LGTM: Clean imports.

All imports are used and properly organized. The package declaration is correct for an executable program.

---

23-36: Excellent Unicode handling!

The ReverseString implementation is correct and well-designed. Converting to runes before reversing ensures proper handling of multi-byte Unicode characters (e.g., emojis, non-ASCII characters). The in-place reversal algorithm is efficient and idiomatic Go.