public/subjects/ordinal

ordinal

Instructions

Complete the function num_to_ordinal. It returns the ordinal number for a given cardinal number.

Expected functions

pub fn num_to_ordinal(x: u32) -> String {

}

Usage

Here is a program to test your function.

use ordinal::*;

fn main() {
    println!("{}", num_to_ordinal(1));
    println!("{}", num_to_ordinal(22));
    println!("{}", num_to_ordinal(43));
    println!("{}", num_to_ordinal(47));
}

And its output

$ cargo run
1st
22nd
43rd
47th
$