how to remove characters other than a letter or a space?

Question

how can i define the following: if string [x] is different from any letter or string in [x] it is different from a space. I want to define this to eliminate everything that is not letters or spaces in a sentence

Answer 1

Sorry about that,
I added some reference links within the code. Check out the links to understand it better 👍

Answer 2

You can use `remove_if` function from <algorithm> library. Here is an example for removing non alphabet and whitespace from string.

https://code.sololearn.com/c91bp5yqw3XW/?ref=app

Answer 3

thanks the code does what I need, but I don't understand what process is running on each line

Answer 4

Ok, thanks