目君 re a front a-aa front front (a)empty (b)a,, enter (c)ara-a out (d)aa,enter Exist what problem?
Exist what problem?
0 Circular max-2 enpty Implementation front rear of Queues max-1 front rear occupied implementation front rear occupied max-1 max-2
Circular Implementation of Queues
Boundary Conditions Queue containing one item front Remove the item empty q ueue rear front with one empty osition rear or Insert an item m的 rear front
Boundary Conditions
3.2 Implementations of Queues The physical model: a linear array with the front always in the first position and all entries moved up the array whenever the front is deleted o Alinear array with two indices always IncreasIng b a circular array with front and rear indices and one position left vacant
3.2 Implementations of Queues The physical model: a linear array with the front always in the first position and all entries moved up the array whenever the front is deleted. A linear array with two indices always increasing. A circular array with front and rear indices and one position left vacant
+ a circular array with front and rear indices and a boolean flag to indicate fullness(or emptiness ba circular array with front and rear indices and an integer counter of entries o a circular array with front and rear indices taking special values to indicate emptiness 3.3 Circular Implementation of Queues in C++
A circular array with front and rear indices and a Boolean flag to indicate fullness (or emptiness). A circular array with front and rear indices and an integer counter of entries. A circular array with front and rear indices taking special values to indicate emptiness. 3.3 Circular Implementation of Queues in C++