How to make a space after a letter (in my case after a comma) when it is in an array?

Question

C++ / C#

For practice, I wrote a small program, everything works, but as soon as I put a space after the comma, the compiler immediately swears, I remove it - everything is fine, it compiles
Code:

char arr[12] = {'H', 'e', 'l', 'l', 'o', ', ', 'w', 'o', 'r', 'l', 'd', '!'};

There is a comma after the letter o, after which there is a space, if anything
Yes, it may be easier to just remove this space, but still, is it possible to do this?

Answer 1

So who will change the size of the array?