#![allow(unused_variables)]
fn main() {
    use std::collections::BTreeMap;
    let mut movie_reviews: BTreeMap<String, String> = BTreeMap::new();
    movie_reviews.insert("Pulp Fiction", "Masterpiece.");
    movie_reviews.insert("The Godfather", "Very enjoyable.");
    movie_reviews.insert("The Blues Brothers", "Eye lyked it a lot.");
    if !movie_reviews.contains_key("Les Misérables") {
        println!(
            "We've got {} reviews, but Les Misérables ain't one.", movie_reviews.len()
        );
    }
    movie_reviews.remove("The Blues Brothers");
    let to_find = ["Up!", "Office Space"];
    for movie in &to_find {
        match movie_reviews.get(movie) {
            Some(review) => println!("{movie}: {review}"),
            None => println!("{movie} is unreviewed."),
        }
    }
    println!("Movie review: {}", movie_reviews["Office Space"]);
    for (movie, review) in &movie_reviews {
        println!("{movie}: \"{review}\"");
    }
}