Program to Add two polynomials

#include <iostream\>
  
#include <conio.h\>
  
using namespace std;
  
  
const int MAX \= 10 ;
  
  
  
  
class poly
  
  
{
  
  
    private :
  
  
  
  
        struct term
  
  
        {
  
  
            int coeff ;
  
  
            int exp ;
  
  
        } t\[MAX\] ;
  
  
        int noofterms ;
  
  
  
  
    public :
  
  
  
  
        poly( ) ;
  
  
        void polyappend ( int c, int e ) ;
  
  
        void polyadd ( poly &amp;p1, poly &amp;p2 ) ;
  
  
        void display( ) ;
  
  
} ;
  
  
  
  
// initializes data members of class poly
  
  
poly :: poly( )
  
  
{
  
  
    noofterms \= 0 ;
  
  
    for ( int i \= 0 ; i &lt; MAX ; i++ )
  
  
    {
  
  
        t\[i\].coeff \= 0 ;
  
  
        t\[i\].exp \= 0 ;
  
  
    }
  
  
}
  
  
  
  
// adds the term of polynomial to the array t
  
  
void poly :: polyappend ( int c, int e )
  
  
{
  
  
    t\[noofterms\].coeff \= c ;
  
  
    t\[noofterms\].exp \=  e ;
  
  
    noofterms++ ;
  
  
}
  
  
  
  
// displays the polynomial equation
  
  
void poly :: display( )
  
  
{
  
  
    int flag \= 0 ;
  
  
    for ( int i \= 0 ; i &lt; noofterms ; i++ )
  
  
    {
  
  
        if ( t\[i\].exp !\= 0 )
  
  
            cout &lt;&lt; t\[i\].coeff &lt;&lt; "x^" &lt;&lt; t\[i\].exp  &lt;&lt; " + " ;
  
  
        else
  
  
        {
  
  
            cout &lt;&lt; t\[i\].coeff ;
  
  
            flag \= 1 ;
  
  
        }
  
  
    }
  
  
    if ( !flag )
  
  
        cout &lt;&lt; "\\b\\b  " ;
  
  
}
  
  
  
  
// adds two polynomials p1 and p2
  
  
void poly :: polyadd ( poly&amp; p1, poly&amp; p2 )
  
  
{
  
  
    int c \= p1.noofterms &gt; p2.noofterms ? p1.noofterms : p2.noofterms ;
  
  
  
  
    for ( int i \= 0, j \= 0 ; i &lt;\= c ; noofterms++ )
  
  
    {
  
  
        if ( p1.t\[i\].coeff \=\= 0 &amp;&amp; p2.t\[j\].coeff \=\= 0 )
  
  
            break ;
  
  
        if ( p1.t\[i\].exp &gt;\= p2.t\[j\].exp )
  
  
        {
  
  
            if ( p1.t\[i\].exp \=\= p2.t\[j\].exp )
  
  
            {
  
  
                t\[noofterms\].coeff \= p1.t\[i\].coeff + p2.t\[j\].coeff ;
  
  
                t\[noofterms\].exp \= p1.t\[i\].exp ;
  
  
                i++ ;
  
  
                j++ ;
  
  
            }
  
  
            else
  
  
            {
  
  
                t\[noofterms\].coeff \= p1.t\[i\].coeff ;
  
  
                t\[noofterms\].exp \= p1.t\[i\].exp ;
  
  
                i++ ;
  
  
            }
  
  
        }
  
  
        else
  
  
        {
  
  
            t\[noofterms\].coeff \= p2.t\[j\].coeff ;
  
  
            t\[noofterms\].exp \= p2.t\[j\].exp ;
  
  
            j++ ;
  
  
        }
  
  
    }
  
  
}
  
  
  
  
int main( )
  
  
{
  
  
    poly p1 ;
  
  
  
  
    p1.polyappend ( 1, 7 ) ;
  
  
    p1.polyappend ( 2, 6 ) ;
  
  
    p1.polyappend ( 3, 5 ) ;
  
  
    p1.polyappend ( 4, 4 ) ;
  
  
    p1.polyappend ( 5, 2 ) ;
  
  
  
  
    poly p2 ;
  
  
    p2.polyappend ( 1, 4 ) ;
  
  
    p2.polyappend ( 1, 3 ) ;
  
  
    p2.polyappend ( 1, 2 ) ;
  
  
    p2.polyappend ( 1, 1 ) ;
  
  
    p2.polyappend ( 2, 0 ) ;
  
  
  
  
    poly p3 ;
  
  
    p3.polyadd ( p1, p2 ) ;
  
  
  
  
    cout &lt;&lt; endl &lt;&lt; "First polynomial:" &lt;&lt; endl  ;
  
  
    p1.display( ) ;
  
  
  
  
    cout &lt;&lt; endl &lt;&lt; "Second polynomial:" &lt;&lt; endl ;
  
  
    p2.display( ) ;
  
  
  
  
    cout &lt;&lt; endl &lt;&lt; "Resultant polynomial:" &lt;&lt; endl ;
  
  
    p3.display( ) ;
  
  
    getch();
  
  
}