write a program to adds the term of polynomial to the array

/* adds the term of polynomial to the array  */

void polyappend ( struct poly *p, int c, int e )

{

p -> t[p -> noofterms].coeff = c ;

p -> t[p -> noofterms].exp =  e ;

( p -> noofterms ) ++ ;

}

/* displays the polynomial equation */

void display ( struct poly p )

{

int flag = 0, i ;

for ( i = 0 ; i < p.noofterms ; i++ )

{

if ( p.t[i].exp != 0 )

printf ( “%d x^%d + “, p.t[i].coeff, p.t[i].exp ) ;

else

{

printf ( “%d”, p.t[i].coeff ) ;

flag = 1 ;

}

}

if ( !flag )

printf ( “\b\b  ” ) ;

}

/* adds two polynomials p1 and p2 */

struct poly polyadd ( struct poly p1, struct poly p2 )

{

int i, j, c ;

struct poly p3 ;

initpoly ( &p3 ) ;

if ( p1.noofterms > p2.noofterms )

c = p1.noofterms ;

else

c = p2.noofterms ;

for ( i = 0, j = 0 ; i <= c ; p3.noofterms++ )

{

if ( p1.t[i].coeff == 0 && p2.t[j].coeff == 0 )

break ;

if ( p1.t[i].exp >= p2.t[j].exp )

{

if ( p1.t[i].exp == p2.t[j].exp )

{

p3.t[p3.noofterms].coeff = p1.t[i].coeff + p2.t[j].coeff ;

p3.t[p3.noofterms].exp = p1.t[i].exp ;

i++ ;

j++ ;

}

else

{

p3.t[p3.noofterms].coeff = p1.t[i].coeff ;

p3.t[p3.noofterms].exp = p1.t[i].exp ;

i++ ;

}

}

else

{

p3.t[p3.noofterms].coeff = p2.t[j].coeff ;

p3.t[p3.noofterms].exp = p2.t[j].exp ;

j++ ;

}

}

return p3 ;

}