Homework 4
Quiz
•
Mathematics
•
University
•
Practice Problem
•
Easy
Antonio Estevan
Used 7+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many people can visit the canteen?
200
1
No limit
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Must every student visiting the canteen eat a dish?
Yes
No
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many dishes can the canteen offer?
3
1
No Limit
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How many drinks can a person take?
3
1
No Limit
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Invariant 1:
context Dish
inv : student_price < 5
Satisfies
Does not satisfy
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Invariant 2:
context Canteen inv : self . dishes -> select ( type = Type :: vegetarian )
-> collect ( students ) -> size () = 2
Satisfies
Does not satisfy
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Invariant 3:
context Canteen inv : self . guests ->
exists ( guest : Person | guest . diet = Type :: vegan )
Satisfies
Does not satisfy
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