src/main.rs

use std::io;

fn main() {
    println!("🔄 Palindrome Checker");
    println!("Enter a string to check if it's a palindrome:");

    let mut input = String::new();
    io::stdin()
      .read_line(&mut input)
      .expect("❌ Failed to read input");

    let cleaned_input = clean_string(&input);

    if cleaned_input.is_empty() {
        println!("Please enter a valid non-empty string.");
        return;
    }

    if is_palindrome(&cleaned_input) {
        println!("✅ '{}' is a palindrome!", input.trim());
    } else {
        println!("❌ '{}' is not a palindrome!", input.trim());

    }
}

fn clean_string(input: &str) -> String {
    input
     .chars()
     .filter(|c| c.is_alphanumeric())
     .map(|c| c.to_lowercase().to_string())
     .collect::<String>()
}

fn is_palindrome(s: &str) -> bool {
    s==s.chars().rev().collect::<String>()
}