Given a string s, write a function to count the number of unique characters in it. The function should ignore spaces and consider uppercase and lowercase letters as the same character.
Constraints
1 <= s.length <= 100
s consists of printable ASCII characters
Function Signature
defcount_unique_characters(s):
Interviewer
Your question is Count Unique Characters in a String. Start with the requirements in the Question tab.
Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.
