Instructions

Your task is to take a list of scorers for a game, and count how many goals each player has scored.

PlayerName is a type alias for String, to make the code easier to read, and to distinguish this use of String from other uses of String.

1. Aggregate scorers

First implement updateGoalCountForPlayer to initialise or increment the goal count for a player. Then implement the aggregateScorers function to count how many goals each player has scored, by using updateGoalCountForPlayer. This function takes a List PlayerName (the names of the players that scored the goals, that can contain duplicate player names), and returns a Dict PlayerName Int containing all the players in the list along with how many goals they have scored.

2. Remove insignificant players

Implement the removeInsignificantPlayers function, to filter out any players that have scored less goals than the threshold.

3. Reset player goal count

Implement the resetPlayerGoalCount function to reset the goals scored to zero for a player.

4. Format the goal count for a single player

Implement the formatPlayer function for formatting the goal count for a single player as a string. If the player does not exit in the dict, assume they have a zero goal count.

5. Format the goal count for all players

Implement the formatPlayers function for formatting the goal count for all players as a string. The players should be ordered by player name.

6. Combine games

Implement the combineGames function, counting the total number of goals each player has scored in both games.