Add solution for Challenge 17 by hudazaan

[hudazaan]

Challenge 17 Solution

Submitted by: @hudazaan

Challenge: Challenge 17

Description:

This PR contains my solution file in challenge-17/submissions/hudazaan/solution-template.go for challenge 17.

Testing

• Solution passes all Test cases.
• Code follows Go best practices.

Thank you for reviewing my PR. Looking forward to more meaningful contributions!! 🚀

[coderabbitai]

Walkthrough

Adds a Go palindrome checker program. Introduces exported function IsPalindrome(s string) bool that normalizes input (remove non-alphanumerics, lowercase) and uses two-pointer comparison. Includes a main function to read input, call IsPalindrome, and print the result. Uses only standard library packages.

Changes

Cohort / File(s)	Summary of Changes
Palindrome checker implementation challenge-17/submissions/hudazaan/solution-template.go	New Go file adding exported IsPalindrome function with normalization and two-pointer logic; adds main to read input and print whether it’s a palindrome; uses fmt, strings, unicode; no external dependencies.

Sequence Diagram(s)

sequenceDiagram
  autonumber
  actor User
  participant Main as main()
  participant Pal as IsPalindrome(s)

  User->>Main: Provide input string
  Main->>Pal: IsPalindrome(input)
  Note right of Pal: Normalize: remove non-alphanumerics, to lower
  Pal->>Pal: Two-pointer compare
  Pal-->>Main: bool (true/false)
  Main-->>User: Print result

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Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

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 succinctly conveys that this pull request adds the solution for Challenge 17, directly reflecting the main change without unnecessary detail or noise.
Description Check	✅ Passed	The description clearly identifies the submission file path, outlines that the solution passes tests and follows Go best practices, and directly relates to Challenge 17 without going off-topic.

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[coderabbitai]

Actionable comments posted: 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 a2868df and 043b47b.

📒 Files selected for processing (1)

• challenge-17/submissions/hudazaan/solution-template.go (1 hunks)

🔇 Additional comments (1)

challenge-17/submissions/hudazaan/solution-template.go (1)

24-50: LGTM! Clean and efficient implementation.

The palindrome logic is correct and follows Go best practices:

• Efficient use of strings.Builder for string construction
• Proper Unicode handling with unicode.IsLetter and unicode.IsDigit
• Optimal two-pointer approach for O(n) comparison
• Clear comments and readable code

[coderabbitai]

⚠️ Potential issue | 🟠 Major

Use bufio.Scanner to read multi-word input.

fmt.Scanln stops reading at the first whitespace, which breaks palindrome checking for common test cases like "race car" or "A man a plan a canal Panama". Palindrome checkers typically need to handle phrases with spaces.

Apply this diff to fix the input reading:

 import (
+	"bufio"
 	"fmt"
+	"os"
 	"strings"
 	"unicode"
 )

 func main() {
 	// Get input from the user
-	var input string
 	fmt.Print("Enter a string to check if it's a palindrome: ")
-	fmt.Scanln(&input)
+	scanner := bufio.NewScanner(os.Stdin)
+	scanner.Scan()
+	input := scanner.Text()

 	// Call the IsPalindrome function and print the result

📝 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

	func main() {
	// Get input from the user
	var input string
	fmt.Print("Enter a string to check if it's a palindrome: ")
	fmt.Scanln(&input)
	// Call the IsPalindrome function and print the result
	result := IsPalindrome(input)
	if result {
	fmt.Println("The string is a palindrome.")
	} else {
	fmt.Println("The string is not a palindrome.")
	}
	}
	import (
	"bufio"
	"fmt"
	"os"
	"strings"
	"unicode"
	)
	func main() {
	// Get input from the user
	fmt.Print("Enter a string to check if it's a palindrome: ")
	scanner := bufio.NewScanner(os.Stdin)
	scanner.Scan()
	input := scanner.Text()
	// Call the IsPalindrome function and print the result
	result := IsPalindrome(input)
	if result {
	fmt.Println("The string is a palindrome.")
	} else {
	fmt.Println("The string is not a palindrome.")
	}
	}

🤖 Prompt for AI Agents

In challenge-17/submissions/hudazaan/solution-template.go around lines 9 to 22,
replace the fmt.Scanln input reading with a bufio.Scanner (or bufio.NewReader)
to capture the full line including spaces: create a scanner for os.Stdin, call
scanner.Scan(), assign input = scanner.Text(), and handle scanner.Err() if
present. Also ensure bufio and os are imported (add them to the import block if
missing). This will allow multi-word phrases like "race car" to be read
correctly for palindrome checking.