Let the following circular queue can accommodate maximum five elements with the following datafront = 2, rear = 3queue = _______,A, B, ___, ___What will happen after ADD C operation takes place?Optionsfront = 1, rear = 4queue = A,B,C, ___front = 2, rear = 4queue = ______, A,B,C, ___front = 3, rear = 4queue = A,B,C, ___front = 3, rear = 3queue = ______, A,B,C, ___
Question
Let the following circular queue can accommodate maximum five elements with the following datafront = 2, rear = 3queue = _______,A, B, ___, ___What will happen after ADD C operation takes place?Optionsfront = 1, rear = 4queue = A,B,C, ___front = 2, rear = 4queue = ______, A,B,C, ___front = 3, rear = 4queue = A,B,C, ___front = 3, rear = 3queue = ______, A,B,C, ___
Solution
The correct option after the ADD C operation takes place is:
front = 2, rear = 4 queue = ______, A, B, C, ___
Here's why:
In a circular queue, the front pointer points to the first item in the queue, and the rear pointer points to the last item. When an item is added (the ADD operation), it is added at the rear.
Initially, we have:
front = 2 (pointing to A) rear = 3 (pointing to B) queue = ______, A, B, ___, ___
After the ADD C operation, C is added at the rear, so the rear pointer moves to the next position:
front = 2 (still pointing to A) rear = 4 (now pointing to C) queue = ______, A, B, C, ___
So, the queue after the operation has A at the front, B in the middle, and C at the rear.
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