طلب شرح ل insert into circular queue

السلام عليكم ورحمة الله وبركاته 

الرجاء من الاخوان شرح هذا الكود ( ولا عليكم امر ) 

اقتباس

Insert Circular ( ):

Description: Here QUEUE is an array with N locations. FRONT and REAR points to the front and rear

elements of the QUEUE. ITEM is the value to be inserted.

1. If (FRONT == 1 and REAR == N) or (FRONT == REAR + 1) Then

2. Print: Overflow

3. Else

4. If (REAR == 0) Then [Check if QUEUE is empty]

(a) Set FRONT = 1

(b) Set REAR = 1

5. Else If (REAR == N) Then [if REAR reaches end if QUEUE]

6. Set REAR = 1

7. Else

8. Set REAR = REAR + 1 [increment REAR by 1]

[End of Step 4 If]

9. Set QUEUE[REAR] = ITEM

10. Print: ITEM inserted

[End of Step 1 If]

11. Exit

تقبلو تحياتي