Programmino C++ - Array

#include <iostream.h>

#include <stdlib.h>

const int maxqsize= 50;

class queue

{ int qlist [maxqsize];

int front,rear,count;

public:

queue() {front=0; rear=0; count=0;};

//metodi verifica

int qfull();

int qempty();

int qlenght();

//accesso

int qfront();

//modifica;

void qinsert(int );

int qdelete();

void clearqueue();

} ;

int queue::qfull() {return count == maxqsize;}

int queue::qempty() {return count==0;};

int queue::qfront() {if(qempty()) {cout<<"vuoto"<<endl;

exit(1);

};

return qlist[front];

};

void queue::qinsert(int x) {if(qfull()) {cout<<"pieno"<<endl;

exit (1);

};

count++;

qlist [rear]=x;

rear= (rear+1)%maxqsize;

};

int queue::qdelete() {if (qempty()) {cout<<"vuoto"<<endl;

exit(1);

};

int temp;

temp= qlist[front];

count--;

front=(front+1)%maxqsize;

return temp;

};

void queue::clearqueue() {count=0; front=0; rear=0;};

void main() { queue q;

q.qinsert(10);

q.qinsert(20);

q.qinsert(30);

cout<<"Elemento alla testa della coda:"

<<q.qfront()<<endl; if(!q.qempty()) {cout<<"Elemento estratto dalla

testa:"<<q.qdelete()<<endl;