finished hasmap excercises and

exercises/hashmaps/hashmaps1.rs

@@ -10,15 +10,15 @@
 //
 // Execute `rustlings hint hashmaps1` or use the `hint` watch subcommand for a hint.
 
-// I AM NOT DONE
-
 use std::collections::HashMap;
 
 fn fruit_basket() -> HashMap<String, u32> {
-    let mut basket = // TODO: declare your hash map here.
+    let mut basket = HashMap::<String, u32>::new();// TODO: declare your hash map here.
 
     // Two bananas are already given for you :)
     basket.insert(String::from("banana"), 2);
+    basket.insert(String::from("apple"), 2);
+    basket.insert(String::from("mango"), 2);
 
     // TODO: Put more fruits in your basket here.
 

exercises/hashmaps/hashmaps2.rs

@@ -11,8 +11,6 @@
 //
 // Execute `rustlings hint hashmaps2` or use the `hint` watch subcommand for a hint.
 
-// I AM NOT DONE
-
 use std::collections::HashMap;
 
 #[derive(Hash, PartialEq, Eq)]
@@ -37,6 +35,9 @@ fn fruit_basket(basket: &mut HashMap<Fruit, u32>) {
         // TODO: Put new fruits if not already present. Note that you
         // are not allowed to put any type of fruit that's already
         // present!
+        if !basket.contains_key(&fruit) {
+            basket.insert(fruit, 1);
+        }
     }
 }
 

exercises/hashmaps/hashmaps3.rs

@@ -14,8 +14,6 @@
 
 // Execute `rustlings hint hashmaps3` or use the `hint` watch subcommand for a hint.
 
-// I AM NOT DONE
-
 use std::collections::HashMap;
 
 // A structure to store team name and its goal details.
@@ -24,6 +22,22 @@ struct Team {
     goals_scored: u8,
     goals_conceded: u8,
 }
+impl Team {
+    fn named(name: String) -> Self {
+         Self { name: name.to_string(), goals_scored: 0, goals_conceded: 0}
+        }
+}
+fn update_score(
+    scores: &mut HashMap<String, Team>, 
+    name: String, 
+    goals_scored: u8, 
+    goals_conceded: u8
+)
+    {
+        let mut team = scores.entry(name.clone()).or_insert(Team::named(name));
+        team.goals_scored += goals_scored; 
+        team.goals_conceded += goals_conceded;
+    }
 
 fn build_scores_table(results: String) -> HashMap<String, Team> {
     // The name of the team is the key and its associated struct is the value.
@@ -35,8 +49,12 @@ fn build_scores_table(results: String) -> HashMap<String, Team> {
         let team_1_score: u8 = v[2].parse().unwrap();
         let team_2_name = v[1].to_string();
         let team_2_score: u8 = v[3].parse().unwrap();
+        update_score(&mut scores,team_1_name,team_1_score,team_2_score);
+        update_score(&mut scores,team_2_name,team_2_score,team_1_score);
         // TODO: Populate the scores table with details extracted from the
-        // current line. Keep in mind that goals scored by team_1
+        // current line. 
+
+        //Keep in mind that goals scored by team_1
         // will be number of goals conceded from team_2, and similarly
         // goals scored by team_2 will be the number of goals conceded by
         // team_1.

exercises/quiz2.rs

@@ -18,8 +18,6 @@
 // - The output element is going to be a Vector of strings.
 // Execute `rustlings hint quiz2` or use the `hint` watch subcommand for a hint.
 
-// I AM NOT DONE
-
 pub enum Command {
     Uppercase,
     Trim,
@@ -30,11 +28,19 @@ mod my_module {
     use super::Command;
 
     // TODO: Complete the function signature!
-    pub fn transformer(input: ???) -> ??? {
+    pub fn transformer(input: Vec<(String, Command)>) -> Vec<String> {
         // TODO: Complete the output declaration!
-        let mut output: ??? = vec![];
+        let mut output: Vec<String> = vec![];
         for (string, command) in input.iter() {
             // TODO: Complete the function body. You can do it!
+            match command {
+                Command::Uppercase => output.push(string.to_uppercase()),
+                Command::Trim => output.push(string.trim().to_string()),
+                Command::Append(usize) => output.push(
+                    format!("{string}{}","bar".repeat(*usize))
+                ),
+                
+            }
         }
         output
     }
@@ -43,7 +49,7 @@ mod my_module {
 #[cfg(test)]
 mod tests {
     // TODO: What do we have to import to have `transformer` in scope?
-    use ???;
+    use my_module::transformer;
     use super::Command;
 
     #[test]