Can anyone explain this question?

Question

What is this code doing brief explanation of code if someone can give
https://code.sololearn.com/cpOVU620bRNw/?ref=app

Answer 1

CarrieForle the explanation of the code

Answer 2

Taking the input string of characters. you can enter string which may contain ASCII equalent value(0 to 9, a to z, A to Z, some special characters).
And it will returning the first occurring of the charecter which is entered more than ones..