struct Solution;
impl Solution {
fn is_palindrome(s: String) -> bool {
let s: Vec<char> = s
.chars()
.filter(|c| c.is_ascii_alphanumeric())
.map(|c| c.to_ascii_lowercase())
.collect();
let a: String = s.iter().collect();
let b: String = s.iter().rev().collect();
a == b
}
}
#[test]
fn test() {
assert_eq!(
Solution::is_palindrome("A man, a plan, a canal: Panama".to_string()),
true
);
assert_eq!(Solution::is_palindrome("race a car".to_string()), false);
}