Question

write (account x) - if x is the symbol 'a then return 1 - if x is a non-list, return 0 - is x is a list, return the number of occurrences of the symbol 'a

Answer 1

The code checks the value of variable x and returns different values based on its value: 1 if x is the symbol 'a, 0 if x is a non-list, and the count if x is a list.

Step-by-step explanation:

The subject of this question is Computer Science.

The grade of this question is High School.

The code is checking the value of variable x and executing different actions based on its value.

If x is the symbol 'a, the code returns 1. If x is a non-list, the code returns 0. And if x is a list, the code counts the occurrences of the symbol 'a and returns the count.