Add solution for Challenge 1 by LouisChen-TW

[LouisChen-TW]

Challenge 1 Solution

Submitted by: @LouisChen-TW
Challenge: Challenge 1

Description

This PR contains my solution for Challenge 1.

Changes

• Added solution file to challenge-1/submissions/LouisChen-TW/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 solution file is introduced to challenge-1 that reads two integers from standard input using fmt.Scanf, validates the input with error handling, calls a Sum() function to add the integers, and prints the result to standard output.

Changes

Cohort / File(s)	Summary
Challenge 1 Submission challenge-1/submissions/LouisChen-TW/solution-template.go	New file: implements main() to read two integers with fmt.Scanf("%d, %d"), handle input errors, and print the sum; adds exported Sum(a int, b int) int function that returns a + b

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~2 minutes

• Single file addition with straightforward logic
• Basic input reading and validation (minimal error handling)
• Simple arithmetic function with no complex branching or edge cases
• No interactions between multiple components or systems

Possibly related PRs

• #736: Adds identical Sum(a int, b int) int function and main input/print logic to a different challenge-1 submission directory.
• #870: Introduces the same exported Sum() function and input-reading/error-handling main for Challenge 1 in a separate submission.
• #832: Implements the exact same Go solution with Sum(a int, b int) int returning a+b and identical main logic for challenge-1.

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 clearly and concisely summarizes the main change: adding a solution for Challenge 1 by a specific contributor.
Description check	✅ Passed	The description is directly related to the changeset, clearly explaining the challenge submission, files added, and testing verification.

---

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[coderabbitai]

Actionable comments posted: 1

🧹 Nitpick comments (2)

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

11-14: Consider using a non-zero exit code on error.

The current implementation returns from main on error, which exits with code 0 (success). For proper error signaling to the calling process, consider using os.Exit(1) instead.

Apply this diff if you want to signal errors properly:

+import (
+	"fmt"
+	"os"
+)

 func main() {
 	var a, b int
 	// Read two integers from standard input
 	_, err := fmt.Scanf("%d, %d", &a, &b)
 	if err != nil {
 		fmt.Println("Error reading input:", err)
-		return
+		os.Exit(1)
 	}

---

24-24: Minor formatting: add spaces around the operator.

Go convention (enforced by gofmt) adds spaces around operators. This is automatically fixed when running go fmt or gofmt.

-	return a+b
+	return a + b

📜 Review details

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between cbe1b92 and 7839e6a.

📒 Files selected for processing (1)

• challenge-1/submissions/LouisChen-TW/solution-template.go (1 hunks)

🔇 Additional comments (1)

challenge-1/submissions/LouisChen-TW/solution-template.go (1)

10-10: Verify the expected input format against the challenge specification.

The format string "%d, %d" expects comma-and-space-separated integers. Confirm this matches the challenge's input specification.

[coderabbitai]

⚠️ Potential issue | 🟡 Minor

Remove the obsolete TODO comment.

The TODO comment indicates the function needs implementation, but the function is already implemented on line 24. This could confuse future readers.

Apply this diff to remove the obsolete comment:

 // Sum returns the sum of a and b.
 func Sum(a int, b int) int {
-	// TODO: Implement the function
 	return a+b
 }

📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change

	// TODO: Implement the function
	// Sum returns the sum of a and b.
	func Sum(a int, b int) int {
	return a+b
	}

🤖 Prompt for AI Agents

In challenge-1/submissions/LouisChen-TW/solution-template.go around line 23,
remove the obsolete "// TODO: Implement the function" comment because the
function is already implemented on the following line; simply delete that
comment line so the file no longer contains misleading TODOs and save the file.