logo CodeStepByStep logo


Language/Type: Python set collections

Write a function named num_unique_values that accepts a list of integers as a parameter and returns the number of unique integer values in the list. For example, if a list named l contains the values [3, 7, 3, -1, 2, 3, 7, 2, 15, 15], the call of num_unique_values(l) should return 5. If passed the empty list, you should return 0. Use a set as auxiliary storage to help you solve this problem. Do not modify the list passed in.

Function: Write a Python function as described, not a complete program.

You must log in before you can solve this problem.

Log In

Need help?

Stuck on an exercise? Contact your TA or instructor.

If something seems wrong with our site, please

Is there a problem? Contact us.