C++ String individual characters

Question

I'm trying to make a function that takes the first and last letters of a string, divides them for the modulus and stores them in an array spot related to the modulus number. However I don't know how I would get the first and last letters of the string.

Answer 1

Assuming std::string str, you can use either:

• str.front() and str.back() (C++11 and later only).

• str[0] and str[str.size()-1], if str is not empty.

Answer 2

You can have the first letter of your string by just using yourString[0] and to get the last latter you can use yourString[yourString.size()-1]

EDIT

As said in the comments, assuming you're using std::string