Valentine's Day
10 Points
custom-types
Instructions
In this exercise, it's Valentine's day and you and your partner are planning on doing something nice together. Your partner has lots of ideas, and is now asking you to rate the ideas, in order to find the activity to engage in.
The following ideas are proposed by your partner:
- Playing a board game
- Chill out
- Watch a movie
- Go to a restaurant
- Take a walk
You have six tasks to help choose your Valentine's day activity.
1. Define the approval
For each idea your partner proposes, you respond with one of three options: yes, no or maybe.
Define the Approval custom type to represent these options as the following three cases: Yes, No and Maybe.
2. Define the cuisines
Your partner has selected two possible restaurants: one based on the Korean cuisine and the other based on the Turkish cuisine.
Define the Cuisine custom type to represent these cuisines as the following two cases: Korean and Turkish.
3. Define the movie genres
There are tons of movies to choose from, so to narrow things down, your partner also lists their genre.
Define the Genre custom type to represent the following genres as cases: Crime, Horror, Romance and Thriller.
4. Define the activity
As said, your partner has come up with five different activities: playing a board game, chill out, watch a movie, go to a restaurant and taking a walk.
Define the Activity custom type to represent these activity types:
BoardGame: no associated data.Chill: no associated data.Movie: has itsGenreas associated data.Restaurant: has itsCuisineas associated data.Walk: has anIntrepresenting the number of kilometers to walk as associated data.
5. Rate the activity
Finally, you're ready to rate your partner's ideas. This is how you feel about your partner's idea:
- Playing a board game: no.
- Chill out: no.
- Watch a movie: yes if it is a romantic movie; otherwise, no.
- Go to a restaurant: yes if the cuisine is Korean, maybe if it is Turkish.
- Take a walk: yes if the walk is more than eleven kilometers; maybe if it is more than six kilometers; otherwise, no.
Implement a function named rate_activity that takes an Activity value and returns the Approval based on the above sentiments:
rate_activity(Restaurant(Turkish))
// -> MaybeValentine's Day
10 Points
custom-types
Instructions
In this exercise, it's Valentine's day and you and your partner are planning on doing something nice together. Your partner has lots of ideas, and is now asking you to rate the ideas, in order to find the activity to engage in.
The following ideas are proposed by your partner:
- Playing a board game
- Chill out
- Watch a movie
- Go to a restaurant
- Take a walk
You have six tasks to help choose your Valentine's day activity.
1. Define the approval
For each idea your partner proposes, you respond with one of three options: yes, no or maybe.
Define the Approval custom type to represent these options as the following three cases: Yes, No and Maybe.
2. Define the cuisines
Your partner has selected two possible restaurants: one based on the Korean cuisine and the other based on the Turkish cuisine.
Define the Cuisine custom type to represent these cuisines as the following two cases: Korean and Turkish.
3. Define the movie genres
There are tons of movies to choose from, so to narrow things down, your partner also lists their genre.
Define the Genre custom type to represent the following genres as cases: Crime, Horror, Romance and Thriller.
4. Define the activity
As said, your partner has come up with five different activities: playing a board game, chill out, watch a movie, go to a restaurant and taking a walk.
Define the Activity custom type to represent these activity types:
BoardGame: no associated data.Chill: no associated data.Movie: has itsGenreas associated data.Restaurant: has itsCuisineas associated data.Walk: has anIntrepresenting the number of kilometers to walk as associated data.
5. Rate the activity
Finally, you're ready to rate your partner's ideas. This is how you feel about your partner's idea:
- Playing a board game: no.
- Chill out: no.
- Watch a movie: yes if it is a romantic movie; otherwise, no.
- Go to a restaurant: yes if the cuisine is Korean, maybe if it is Turkish.
- Take a walk: yes if the walk is more than eleven kilometers; maybe if it is more than six kilometers; otherwise, no.
Implement a function named rate_activity that takes an Activity value and returns the Approval based on the above sentiments:
rate_activity(Restaurant(Turkish))
// -> Maybe