Why two strings are of two sizes?

Question

https://code.sololearn.com/cAhZrg33MeGI/?ref=app

Answer 1

The second one technically is not a string because you don't have '\0' after it, while '\0' is added at the end of first one.

Answer 2

CarrieForle If the 2nd one isn’t string, then what is it?Wasn’t the compiler supposed to put a '\0' at the end of 2nd string?

Answer 3

Second one is array of characters. Because the complier sees it as an array, \0 won't be added

Answer 4

Now I get it.