Dsa
Strings
Warm-up
Unique Character Checker
Write a function that checks if a given string has all unique characters. The input will be a single line string. Print 'True' if all characters are unique, otherwise print 'False'. Ignore spaces and treat uppercase and lowercase characters as distinct.
Example:
Input: ABCdeF
Output: True
Key concepts
stringssetuniqueness
Practise this out loud — free
Start a mock interview on THIS exact question — a voice AI interviewer opens with it, pushes back like a real onsite, then hands you an instant scorecard.
🎙 Practise this question now