Add solution for Challenge 17 by JoQCorreia (#1895)

Auto-merged after 2 days with all checks passing.

PR: #1895
Author: @JoQCorreia

Author: JoQCorreia

challenge-17/submissions/JoQCorreia/solution-template.go

@@ -0,0 +1,56 @@
+package main
+
+import (
+	"fmt"
+	"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)
+
+	// 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.")
+	}
+}
+
+// IsPalindrome checks if a string is a palindrome.
+// A palindrome reads the same backward as forward, ignoring case, spaces, and punctuation.
+func IsPalindrome(s string) bool {
+    
+    //Removes all characters that are not letters or numbers and makes string lowercase
+	pal := strings.Map(func(c rune) rune {
+		if !unicode.IsLetter(c) && !unicode.IsNumber(c) {
+			return -1
+		}
+		return c
+	}, strings.ToLower(s))
+
+    //If string has no characters, it returns true
+    if len(pal) == 0 {
+		return true
+	}
+
+    // Convert to runes to safely handle multi-byte Unicode characters
+	palRunes := []rune(pal)
+	indx := len(palRunes) - 1
+
+	for i := 0; i <= (indx - i); i++ {
+    //Loop compares the letters on opposite sides of the string for matches
+		if palRunes[i] != palRunes[indx-i] {
+			return false
+		}
+
+		continue
+
+	}
+
+	return true
+}