Question

What is the loop invariant of the reverse_array function?

1) The loop invariant is the condition that remains true before and after each iteration of the loop.
2) The loop invariant is the condition that is checked at the beginning of each iteration of the loop.
3) The loop invariant is the condition that is checked at the end of each iteration of the loop.
4) The loop invariant is the condition that is checked only once before entering the loop.

Answer 1

The loop invariant is the condition that remains true before and after each iteration of the loop. In the case of the reverse_array function, the loop invariant could be that the elements before the current index remain reversed, while the elements after the current index are still in their original order.

Step-by-step explanation:

The loop invariant is the condition that remains true before and after each iteration of the loop.

In the case of the reverse_array function, the loop invariant could be that the elements before the current index remain reversed, while the elements after the current index are still in their original order.

This means that during each iteration of the loop, the loop invariant should hold true, ensuring that the array is being reversed properly.