random_string.rs

use rand;
use rand::distributions::{Distribution, Uniform};

fn rand_string(amount: u32) -> String {
    let mut rng = rand::thread_rng();
    let random = Uniform::from(30..=800);
    (1..=amount).map(|_| char::from_u32(random.sample(&mut rng)).unwrap()).collect::<String>()
}
fn main() {
    for _ in 1..=100 {
        println!("{}", rand_string(15));
    }
}