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About Perl

Perl is a family of two high-level, general-purpose, interpreted programming languages.

About Rust

Rust is a multi-paradigm programming language focused on performance and safety, especially safe concurrency.

Palindrome Check Example: Perl vs Rust

Palindrome Check in Perl

sub is_palindrome {
    my $str = shift;
    $str =~ s/[^a-zA-Z0-9]//g;
    $str = lc($str);
    return $str eq reverse($str);
}

# Example usage
print is_palindrome("A man, a plan, a canal: Panama") ? "true\n" : "false\n";
print is_palindrome("race a car") ? "true\n" : "false\n";

Palindrome Check in Rust

fn is_palindrome(s: &str) -> bool {
    let clean: String = s.chars()
        .filter(|c| c.is_alphanumeric())
        .map(|c| c.to_ascii_lowercase())
        .collect();
    
    clean.chars().eq(clean.chars().rev())
}

fn main() {
    println!("{}", is_palindrome("A man, a plan, a canal: Panama")); // true
    println!("{}", is_palindrome("race a car")); // false
}

Bubble Sort Example: Perl vs Rust

Bubble Sort in Perl

sub bubble_sort {
    my @arr = @_;
    my $n = scalar @arr;
    for my $i (0..$n-1) {
        for my $j (0..$n-$i-2) {
            if ($arr[$j] > $arr[$j+1]) {
                @arr[$j,$j+1] = @arr[$j+1,$j];
            }
        }
    }
    return @arr;
}

my @arr = (64, 34, 25, 12, 22, 11, 90);
print join(" ", bubble_sort(@arr)) . "\n";

Bubble Sort in Rust

fn bubble_sort(arr: &mut [i32]) {
    let n = arr.len();
    for i in 0..n {
        for j in 0..n - i - 1 {
            if arr[j] > arr[j + 1] {
                arr.swap(j, j + 1);
            }
        }
    }
}

fn main() {
    let mut arr = vec![64, 34, 25, 12, 22, 11, 90];
    bubble_sort(&mut arr);
    println!("{:?}", arr);
}