public/subjects/stars

stars

Instructions

Write a function named stars that takes a number as parameter and returns a string of stars (asterisks) 2^n long (2 to the nth power).

Expected functions

pub fn stars(n: u32) -> String {

}

Usage

Here is a program to test your function.

use stars::stars;

fn main() {
    println!("{}", stars(1));
    println!("{}", stars(4));
    println!("{}", stars(5));
}

And its output:

$ cargo run
**
****************
********************************
$