use std::collections::HashMap;





fn basic_hash_map_ops() {
    let mut scores = HashMap::new();
    // let mut scores = HashMap<String, HashMap<U32, u32>>::new();

    let mut blue :HashMap<u32, u32> = HashMap::new();
    let mut yellow  = HashMap::new();
    let mut green  = HashMap::new();

    blue.insert(5, 45);
    yellow.insert(6, 54);
    green.insert(7, 63);

    // scores.insert(String::from("Blue"), blue);
    scores.insert("Blue".to_string(), blue);
    scores.entry(String::from("Yellow")).or_insert(yellow);
    scores.entry(String::from("Green")).or_insert(green);

    if let Some(y) = scores.get_mut("Yellow") {
        y.insert(8, 72);
        // println!("{:?}", x);
    }

    println!("{:?}", scores);
}


fn setting_structs() {
    struct
}

fn main() {
    basic_hash_map_ops();
}