Picat Using Standard Modules 2

Question 1

Which Picat module provides the `sort/1` and `msort/1` predicates for list sorting?

Accepted Answer

lists

Answer

The `lists` module provides `sort/1` (removes duplicates) and `msort/1` (keeps duplicates) for sorting lists.

Question 2

In the Picat `math` module, what does `gcd(12, 8)` return?

Accepted Answer

4

Answer

`gcd/2` computes the greatest common divisor, and the GCD of 12 and 8 is 4.

Question 3

Which function in the Picat `string` module converts a string to uppercase?

Accepted Answer

to_upper/1

Answer

`to_upper/1` from the `string` module returns the uppercase version of a string.

Question 4

How do you import the `io` module in a Picat program?

Accepted Answer

:- import io.

Answer

Picat uses the `:- import module_name.` directive to import a module.

Question 5

What does `maps:get(Map, Key, Default)` do when the key is not found in the map?

Accepted Answer

Returns Default

Answer

The three-argument form of `maps:get/3` returns the Default value when the Key is absent from Map.

Picat Practice Test