Use of undeclared variable

[bhavish_rohilla]

What is display(a,n) here?
As reverse() is present in the header file and rotate() function we defined. But I didn’t get the concept of display(),

[asaurabh_26 (logical coder)]

@bhavish_rohilla

What is display(a,n) here?

this is function to print the array

@bhavish_rohilla

As reverse() is present in the header file and rotate() function we defined. But I didn’t get the concept of display(),

reverse is inbuilt function