extern crate weighted_random_list; use weighted_random_list::WeightedRandomList; fn main() { let list = [ (1, "https://source.example.net/archive"), (10, "https://mirror-slow0.example.net/archive"), (10, "https://mirror-slow1.example.net/archive"), (100, "https://mirror-fast.example.net/archive"), ]; let mirrors = list.iter() .map(|(weight, url)| (*weight, url.to_string())) .collect::>(); let random_choice = mirrors.get_random(); println!("Using {:?} this time", random_choice); }