Suppose the following declarations are in effect :
The value of $q - p$ is ________.
q is a pointer, it store memory address of 6th element with value 2 with index 5 .
p is another pointer, it store memory address of 2nd element with index 1 whose value is 15.
so value for q is 5 and value for p is 1 so q-p is = 5-1 = 4
here we considering the index position of p and q .