finished quiz 2 and started options

exercises/hashmaps/hashmaps3.rs

@@ -14,7 +14,6 @@
 
 // Execute `rustlings hint hashmaps3` or use the `hint` watch subcommand for a hint.
 
-// I AM NOT DONE
 
 use std::collections::HashMap;
 
@@ -40,12 +39,24 @@ fn build_scores_table(results: String) -> HashMap<String, Team> {
         // will be the number of goals conceded from team_2, and similarly
         // goals scored by team_2 will be the number of goals conceded by
         // team_1.
-        scores.entry(team_1_name).or_insert(Team{
+        // If the key doesn't exist, initialize the goals to be 0. then add the goals.
+
+        let score1 = scores.entry(team_1_name.clone()).or_insert(Team{
             name: team_1_name,
-            goals_scored: team_1_score,
-            goals_conceded: team_2_score
+            goals_scored: 0,
+            goals_conceded: 0
         });
+        score1.goals_scored += team_1_score;
+        score1.goals_conceded += team_2_score;
         
+        let score2 = scores.entry(team_2_name.clone()).or_insert(Team{
+            name: team_2_name,
+            goals_scored: 0,
+            goals_conceded: 0
+        });
+        score2.goals_scored += team_2_score;
+        score2.goals_conceded += team_1_score;
+
     }
     scores
 }

exercises/options/options1.rs

@@ -1,7 +1,8 @@
 // options1.rs
 // Execute `rustlings hint options1` or use the `hint` watch subcommand for a hint.
 
-// I AM NOT DONE
+
+use std::time;
 
 // This function returns how much icecream there is left in the fridge.
 // If it's before 10PM, there's 5 pieces left. At 10PM, someone eats them
@@ -10,7 +11,20 @@ fn maybe_icecream(time_of_day: u16) -> Option<u16> {
     // We use the 24-hour system here, so 10PM is a value of 22 and 12AM is a value of 0
     // The Option output should gracefully handle cases where time_of_day > 23.
     // TODO: Complete the function body - remember to return an Option!
-    ???
+    
+    // match time_of_day {
+    //     0..=21 => Some(5),
+    //     22..=24 => Some(0),
+    //     _ => None,
+    // }
+
+    if time_of_day < 22 {
+        Some(5)
+    } else if time_of_day < 24 {
+        Some(0)
+    } else {
+        None
+    }
 }
 
 #[cfg(test)]
@@ -30,6 +44,6 @@ mod tests {
     fn raw_value() {
         // TODO: Fix this test. How do you get at the value contained in the Option?
         let icecreams = maybe_icecream(12);
-        assert_eq!(icecreams, 5);
+        assert_eq!(icecreams, Some(5));
     }
 }

exercises/options/options2.rs

@@ -11,7 +11,7 @@ mod tests {
         let optional_target = Some(target);
 
         // TODO: Make this an if let statement whose value is "Some" type
-        word = optional_target {
+        if let Some(word) = target {
             assert_eq!(word, target);
         }
     }

exercises/quiz2.rs

@@ -18,7 +18,6 @@
 // - The output element is going to be a Vector of strings.
 // No hints this time!
 
-// I AM NOT DONE
 
 pub enum Command {
     Uppercase,
@@ -30,21 +29,32 @@ 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().to_string()),
+                Command::Append(n) => output.push(push_bar(string, *n)),
+                Command::Trim => output.push(string.trim().to_string()),
+            }
         }
         output
     }
+
+    fn push_bar(string: &str, n: usize) -> String {
+        let bar = "bar".repeat(n);
+        let mut res = String::from(string.to_string() + &bar);
+        res
+    }
 }
 
 #[cfg(test)]
 mod tests {
     // TODO: What do we need to import to have `transformer` in scope?
-    use ???;
     use super::Command;
+    use super::my_module::transformer;
 
     #[test]
     fn it_works() {