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Question -

Define member function delque() to perform delete operation on a linked queue where each node has the following structure :

struct node 
{
char name[20]
int marks; 
node *link;
};
class queue
{
node *front,‘rear; 
public :
queue() {front=rear=NULL;
}
void delque ( );
}; 



Answer -

void queue : : delque ()
{
if ( front != NULL)
{
node *Temp = front;
cout << Temp -> name << Temp
->marks;
front = front->link;
delete Temp;
if(front == NULL)
rear = NULL;
}
else
cout << "Queue is empty";

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