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The King of Zumbania passed a new law: No one's name can contain duplicate characters. As the Royal Developer, you are tasked with writing a program to enforce this rule.
Create a program that checks if a given name has duplicate characters. Uppercase and lowercase letters are considered duplicates of each other. The names will not contain any spaces. (Optimization is optional.)
Challenge
Create a program that prints true if a name has duplicate characters and false otherwise.
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Comments
thales
Jul 23, 7:52 AMa solution:
my code