First try to predict the outcome of the following C program. Then, run it to find out whether your prediction was correct or not. Try to justify your observation using the concept of pointers in $C.$

Hint: Please note that:

$p$ is a pointer initialized to letter $\text{'}$o$\text{'}$ in the string "hello world!"

str which is the name of char array containing the "hello world!" string is considered to be the pointer to the first letter $\text{'}h\text{'}$

expression $(p-$ str$)$ subtracts a pointer from the other resulting in an integer counting how many characters can be fit between these two pointers.

$p[-2]$ is a character stored two letters before the current position that pointer $p$ refers to

$p--$ moves the pointer $p$ backward in the string "hello world!"

$++p$ moves the pointer $p$ forward in the string "hello world!

#includestr$[15]cha{r}^{**}p=$&$str[4]$