Function hot_ranking_algorithm::rank

pub fn rank(
    upvotes: &i32, 
    downvotes: &i32, 
    timestamp: DateTime<Utc>, 
    epoch: DateTime<Utc>
) -> i32

Calculate the relevancy of an item based on upvotes, downvotes, a current timestamp and the epoch at which the program is first run (e.g. no value can be lower than that).