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

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

Usage

Here is a program to test your function.

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

And its output

student@ubuntu:~/[[ROOT]]/test$ cargo run
**
****************
********************************
student@ubuntu:~/[[ROOT]]/test$