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581 B
581 B
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:
student@ubuntu:~/stars/test$ cargo run
**
****************
********************************
student@ubuntu:~/stars/test$