Linear Data Structures: Stacks and Queues

In a simple linear queue implemented using an array, two pointers are maintained: - Front - points to the first element - Rear - points to the last element Consider a queue of size 5: After Enqueue A, B, C, D, E and then Dequeue A, B: Now if we try to Enque...

A circular queue is a linear data structure that follows the FIFO (First In First Out) principle, but the last position is connected back to the first position to form a circle. It overcomes the major limitation of a simple (linear) queue where memory space...

In a linear queue, once the rear pointer reaches the last index of the array, no more elements can be inserted even if there are empty slots at the front (created after dequeue operations). This leads to wastage of memory space. A circular queue solves this...

Infix expression to convert: $$7 8 + 10 - 2$$ Operator precedence: - , / : higher - +, - : lower Associativity: left to right. --- 1. Scan tokens left to right. 2. Operand → append to output. 3. Operator → pop operators from stack with precedence greater th...

- Infix expression to convert: $(A+B)C-D$ - Data structure to use: Stack - Task: (a) explain the algorithm, (b) apply it to the given expression. All required data is present. --- Operator Precedence --------------------- ^ 3 (highest) , / 2 +, - 1 ( inside...

--- A simple queue (also called a linear queue) is a linear data structure that follows the FIFO (First In First Out) principle, meaning the element inserted first is the element removed first. Key characteristics: - Elements are inserted from the REAR end ...

--- A stack is a linear data structure that follows the LIFO (Last In, First Out) principle. This means the element inserted last is the first one to be removed. A stack can be visualized as a pile of plates: you add a plate on top and also remove from the ...

A queue is a linear data structure that follows the FIFO (First In, First Out) principle. Using a linked list to implement a queue allows dynamic memory allocation, avoiding the fixed-size limitation of array-based queues. --- Each node in the linked list c...

A queue is a linear data structure that follows the FIFO (First In, First Out) principle. Using a linked list to implement a queue allows dynamic memory allocation, avoiding the fixed-size limitation of array-based queues. Two pointers are maintained: - FRO...

A priority queue is a special type of queue in which each element is associated with a priority value, and elements are served (removed) based on their priority rather than their insertion order. - An element with higher priority is dequeued before an eleme...

A priority queue is an abstract data type (ADT) similar to a regular queue, but each element has an associated priority value. Elements are served (removed) based on their priority rather than their insertion order: - The element with the highest priority i...

Feature Stack Queue --------- Principle LIFO (Last In First Out) FIFO (First In First Out) Insertion/Deletion Both at the same end (top) Insertion at rear, deletion at front Operations PUSH (insert), POP (delete) ENQUEUE (insert), DEQUEUE (delete) Number of...