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581 B

reverse_it

Instructions

Create a function named reverse_it, that takes a number. It should return a string with the number reversed, followed by the original number. If the number is negative, a - should be added to the beginning of the string.

Expected Functions

pub fn reverse_it(v: i32) -> String {
}

Usage

Here is a program to test your function,

use reverse_it::reverse_it;

fn main() {
    println!("{}", reverse_it(123));
    println!("{}", reverse_it(-123));
}

And its output:

$ cargo run
321123
-321123
$