pub trait RatingSystem: Debug {
// Required method
fn round_update(
&self,
contest_weight: f64,
standings: Vec<(&mut Player, usize, usize)>,
);
}pub trait RatingSystem: Debug {
// Required method
fn round_update(
&self,
contest_weight: f64,
standings: Vec<(&mut Player, usize, usize)>,
);
}