.

exercises/hashmaps/hashmaps1.rs

@@ -11,18 +11,19 @@
 // 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> = Default::default();// TODO: declare your hash map here.
 
     // Two bananas are already given for you :)
     basket.insert(String::from("banana"), 2);
 
     // TODO: Put more fruits in your basket here.
 
+    basket.insert(String::from("apple"), 2);
+    basket.insert(String::from("pear"), 2);
+
     basket
 }
 

exercises/hashmaps/hashmaps2.rs

@@ -14,8 +14,6 @@
 // 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)]
@@ -40,6 +38,20 @@ fn fruit_basket(basket: &mut HashMap<Fruit, u32>) {
         // TODO: Insert new fruits if they are not already present in the
         // basket. Note that you are not allowed to put any type of fruit that's
         // already present!
+
+        match fruit {
+            Fruit::Banana => {
+                basket.insert(Fruit::Banana, 2);
+            },
+
+            Fruit::Pineapple => {
+                basket.insert(Fruit::Pineapple, 2);
+            },
+
+            _ => {
+
+            }
+        }
     }
 }
 

exercises/hashmaps/hashmaps3.rs

@@ -3,7 +3,7 @@
 // A list of scores (one per line) of a soccer match is given. Each line is of
 // the form : "<team_1_name>,<team_2_name>,<team_1_goals>,<team_2_goals>"
 // Example: England,France,4,2 (England scored 4 goals, France 2).
-//
+
 // You have to build a scores table containing the name of the team, goals the
 // team scored, and goals the team conceded. One approach to build the scores
 // table is to use a Hashmap. The solution is partially written to use a
@@ -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 the goal details of a team.
@@ -39,6 +37,20 @@ 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.
+
+        let team1 = scores.entry(team_1_name).or_insert(Team {
+            goals_scored: 0,
+            goals_conceded: 0
+        });
+        team1.goals_scored += team_1_score;
+        team1.goals_conceded += team_2_score;
+
+        let team2 = scores.entry(team_2_name).or_insert(Team {
+            goals_scored: 0,
+            goals_conceded: 0
+        });
+        team2.goals_scored += team_2_score;
+        team2.goals_conceded += team_1_score;
     }
     scores
 }