Add solution for Challenge 1 by nasseredine

[nasseredine]

Challenge 1 Solution

Submitted by: @nasseredine
Challenge: Challenge 1

Description

This PR contains my solution for Challenge 1.

Changes

• Added solution file to challenge-1/submissions/nasseredine/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 file that implements a console-based solution for Challenge 1. The program reads two integers from standard input, computes their sum using an exported Sum function, and prints the result with error handling for input parsing failures.

Changes

Cohort / File(s)	Change Summary
Challenge 1 Solution (Nasseredine) challenge-1/submissions/nasseredine/solution-template.go	New file introducing a main program with input parsing via fmt.Scanf, error handling, and an exported Sum(a int, b int) int function that returns the sum of two integers.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~4 minutes

Possibly related PRs

• Add solution for Challenge 1 by Be1chenok #585: Introduces an identical Go solution for Challenge 1 with the same exported Sum function and nearly matching fmt.Scanf input parsing logic.
• Add solution for Challenge 2 by ymonn #739: Adds a Go solution for Challenge 1 defining the same Sum(a int, b int) int function with comparable main input-output flow.
• Add solution for Challenge 1 by redstrike #595: Contributes an identical Go Challenge 1 solution with the same exported Sum function and similar main input/print 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 clearly describes the main change: adding a solution for Challenge 1 by a specific contributor, which matches the changeset.
Description check	✅ Passed	The description is directly related to the changeset, clearly explaining that it contains a Challenge 1 solution submission with details about the file added.

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Actionable comments posted: 0

🧹 Nitpick comments (2)

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

12-12: Write errors to stderr instead of stdout.

Error messages should be written to stderr rather than stdout to follow Go best practices and allow proper error stream separation.

Apply this diff to write errors to stderr:

+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)
+		fmt.Fprintln(os.Stderr, "Error reading input:", err)
 		return
 	}

---

21-24: Consider making Sum unexported unless required for testing.

The Sum function is exported (capitalized) in package main. Since package main is for executables rather than importable libraries, exported functions are unusual unless specifically required for external testing frameworks.

If not required for testing, apply this diff:

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

And update the call in main:

-	result := Sum(a, b)
+	result := sum(a, b)

However, if the challenge's test harness requires an exported Sum function, keep it as is.

📜 Review details

Configuration used: CodeRabbit UI

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between ca8ea29 and e97c65c.

📒 Files selected for processing (1)

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

🔇 Additional comments (3)

challenge-1/submissions/nasseredine/solution-template.go (3)

1-5: LGTM!

The package declaration and imports are appropriate for this executable program.

---

17-18: LGTM!

The sum calculation and output logic are correct and straightforward.

---

10-10: The input format in line 10 is correct and matches the challenge specification.

The README.md explicitly documents the expected input format through sample inputs ("2, 3" and "-5, 10"), and the test file validates all inputs using comma-separated format with space. The format string "%d, %d" in the code is correct.

Likely an incorrect or invalid review comment.

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Warning

Docstrings generation is disabled for your repository or organization.

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Tip

For best results, initiate chat on the files or code changes.

🧩 Analysis chain

🏁 Script executed:

#!/bin/bash
# Read the solution file to see the current code
cat challenge-1/submissions/nasseredine/solution-template.go

Length of output: 386

---

@nasseredine, here's your code with comprehensive docstrings following Go conventions:

// Package main implements a simple calculator that reads two integers from
// standard input and outputs their sum.
package main

import (
	"fmt"
)

// main is the entry point of the program. It reads two comma-separated integers
// from standard input, calculates their sum using the Sum function, and prints
// the result. If input reading fails, it prints an error message and exits.
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
	}

	// Call the Sum function and print the result
	result := Sum(a, b)
	fmt.Println(result)
}

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

The docstrings follow Go best practices:

• Package-level documentation describes the overall purpose of the program
• Function documentation starts with the function name and describes what it does
• The existing Sum function docstring was already well-written, so I kept it as-is