Stacks Representation using Arrays and Linked Lists

Produce an overflow error and exit

Increment the rear pointer to point to the next space

Print underflow and exit

<p>Increment the front pointer to point to the next available data element</p> Signup and view all the answers

<p>To overcome the problem of unutilized space in a linear queue</p> Signup and view all the answers

<p>At the very first location of the queue</p> Signup and view all the answers

<p>Higher priority elements are served first.</p> Signup and view all the answers

<p>Arrays, Linked list, Heap data structure, Binary search tree.</p> Signup and view all the answers

<p>When a new element is inserted, it moves to the empty slot from top to bottom and left to right. If not in correct place, it's compared with parent node and may be swapped.</p> Signup and view all the answers

<p>O(n).</p> Signup and view all the answers

<p>If the element with the smallest value has the highest priority.</p> Signup and view all the answers

<p>If the element with a higher value has the highest priority.</p> Signup and view all the answers

<p>The <code>pop()</code> function in a stack is used to delete an element from the stack. It always deletes the element from the top position of the stack.</p> Signup and view all the answers

<p>The three steps involved in the <code>pop()</code> operation of a stack are:</p> <ol> <li>Check if the stack is empty (top == -1).</li> <li>If the stack is empty, display an error message and terminate the function.</li> <li>If the stack is not empty, delete the element at the top (stack[top]) and decrement the top value by one (top--).</li> </ol> Signup and view all the answers

<p>The three main notations used to represent arithmetic expressions are:</p> <ol> <li>Infix notation: A+B</li> <li>Prefix (Polish) notation: +AB</li> <li>Postfix (Reverse Polish) notation: AB+</li> </ol> Signup and view all the answers

<p>The process of converting an infix expression to a postfix expression using a stack involves the following steps:1. Initialize an empty stack.2. Scan the infix expression from left to right.3. For each operand, add it to the postfix expression.4. For each operator, push it onto the stack if it has higher precedence than the top of the stack, otherwise pop operators from the stack and add them to the postfix expression until the current operator can be pushed.5. After scanning the entire infix expression, pop any remaining operators from the stack and add them to the postfix expression.</p> Signup and view all the answers

<p>The key characteristics of the queue data structure are:1. Additions are made at the end or tail of the queue.2. Removals are made from the front or head of the queue.3. It follows a First-In-First-Out (FIFO) structure, where the first element added is the first one to be removed.</p> Signup and view all the answers

<p>The algorithm to display the elements of a stack is as follows:1. Check if the stack is empty (top == -1).2. If the stack is empty, display a message saying the stack is empty.3. If the stack is not empty, start from the top (top) and print the elements one by one until the bottom of the stack is reached (top &gt;= 0).</p> Signup and view all the answers

<p>The position of the new element to be inserted is calculated by: rear = (rear + 1) % MAXSIZE</p> Signup and view all the answers

<p>The condition (Rear + 1) % Maxsize == Front is checked to detect overflow.</p> Signup and view all the answers

<p>The first step is to check for the underflow condition: If Front == -1, print &quot;Underflow&quot; and exit.</p> Signup and view all the answers

<p>If Front == Rear after deleting the element, both Front and Rear are set to -1.</p> Signup and view all the answers

<p>A priority queue is a special type of queue where each element is associated with a priority value. Elements are dequeued based on their priority rather than their order of arrival.</p> Signup and view all the answers

<p>If Rear = Maxsize - 1 &amp; Front != 0, then Rear is set to 0 during insertion.</p> Signup and view all the answers

<p>The stack data structure follows the Last-In First-Out (LIFO) principle, where the last element added to the stack is the first one to be removed.</p> Signup and view all the answers

<p>A stack can be represented using a one-dimensional array, where the <code>top</code> variable keeps track of the index of the top element in the array. When adding an element, the <code>top</code> is incremented, and when removing an element, the <code>top</code> is decremented.</p> Signup and view all the answers

<p>When a stack is implemented using a single linked list, each node contains a data field and a pointer to the next node in the list. The <code>top</code> is a pointer to the top of the list, and when <code>top</code> is <code>NULL</code> (or <code>NIL</code>), the stack is empty.</p> Signup and view all the answers

<p>The convention for indicating an empty stack when using a one-dimensional array is to set the <code>top</code> variable to be equal to -1.</p> Signup and view all the answers

<p>To insert a value into a stack implemented using a one-dimensional array:1. Check if the stack is full (i.e., <code>top == SIZE-1</code>).2. If the stack is full, display an error message and terminate the function.3. If the stack is not full, increment the <code>top</code> variable by 1 and then insert the value.</p> Signup and view all the answers

<p>To delete a value from a stack implemented using a one-dimensional array:1. Delete the value at the current <code>top</code> index.2. Decrement the <code>top</code> variable by 1 to keep track of the new top of the stack.</p> Signup and view all the answers