Data Structures and Types Flashcards
7 cards from real Picat practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Data Structures and Types flashcards as text
How do you create a new empty map in Picat?
Answer: new_map()
Picat provides the built-in `new_map()` function to create an empty hash map.
What is the correct syntax to access element at index 2 of array A in Picat?
Answer: A[2]
Picat arrays use bracket notation `A[I]` for indexed access, with indexing starting at 1.
Starting from which index do Picat arrays begin?
Answer: 1
Picat arrays are 1-indexed by default, so the first element is at index 1.
What does `to_array([a, b, c])` return in Picat?
Answer: {a, b, c}
`to_array/1` converts a list to a Picat array represented with curly-brace notation `{a, b, c}`.
Which function retrieves a value from Picat map M using key K?
Answer: get(M, K)
`get(M, K)` is the built-in to retrieve the value associated with key K from map M.
How do you insert key K with value V into Picat map M?
Answer: put(M, K, V)
`put(M, K, V)` inserts or updates the key-value pair in the map, which is a mutable operation in Picat.
What does `array({1, 2, 3})` evaluate to in Picat?
Answer: true
The `array/1` predicate succeeds (returns true) when its argument is a Picat array denoted with curly braces.