Circular array concept

Please explain what is a Circular Array?

A circular array is nothing but a normal array only. In this, it is considered that the last element is attached to the first element. Like after the last element, the next element just after it will be the first element. So it’s connected in a circular form.
For example: if the array is [4,3,2], answer would be -1,4,4 as 4 will be the next greater element after both 2 and 3. Got it?

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