Suppose a circular queue of capacity (n - 1) elements is implemented with an array of n elements. Assume that the insertion and deletion operations are carried out using REAR and FRONT as array index variables respectively. Initially, REAR = FRONT = 0. The conditions to detect queue empty and queue full are:

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Computer Science · Data Structures

Verified Solution4 OptionsUpdated: October 2026👁️1 View

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EMPTY: REAR == FRONT; FULL: (REAR + 1) mod n == FRONT

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Answer 1

EMPTY: REAR == FRONT; FULL: (REAR + 1) mod n == FRONT

Answer 2

EMPTY: (FRONT + 1) mod n == REAR; FULL: (REAR + 1) mod n == FRONT

Answer 3

EMPTY: (REAR + 1) mod n == FRONT; FULL: REAR == FRONT

Answer 4

EMPTY: REAR == FRONT; FULL: (FRONT + 1) mod n == REAR

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