if i give an input as ‘a2’ it should result in ‘aa’

Question

Given a string, Your task is to complete the function encode that returns the run length encoded string for the given string.
eg if the input string is “wwwwaaadexxxxxx”, then the function should return “w4a3d1e1x6″.
You are required to complete the function encode that takes only one argument the string which is to be encoded and returns the encoded string.

Answer 1

Probably a task, something your teacher gave you?

Does the input have to come in one unit? Because it's probably more convenient to take the letters and numbers separately.

Anyway, as swim said, give us a bit more context.

Answer 2

So you are looking something like,
std::string a2(2, 'a');
Not sure I get you either.
https://code.sololearn.com/cE9gYL2EmXPW/?ref=app