Yos have a DualArravDeque with $k$ elements in the front array and $n-k$

elements in the back array. It vou insert an element at the beginning of the deque,

what happens if the front array is already full?

Al the $n$ elements we shifted out of the way to free up a spot to add the new

item.

A rebalancing aperation occurs, redistributing elements between the two arrays.

The resize? aperation is caled on the front array. Alter the coperation, the array

size becomes $2k.$