Find duplicate character in given input string using python & C language. Both.

Question

Take input string from user

Answer 1

here's an example by ace, might be helpful
https://code.sololearn.com/cU9KQYho0v5W/?ref=app

Answer 2

Please show what you have tried. How can people help if they don't know how far you have gone through?
Follow this guide to sharing links 👍
https://www.sololearn.com/post/74857/?ref=app