xdpt buat polinomial guna c++ (linked list)

#include <iostream.h>
#include <conio.h>


/*List Class Declaration -----------------------------------------------------*/
class linklist
{
private:

struct poly1
{
int coe,exp;
poly1 *link;
}*p1;

struct poly2
{
int coe,exp;
poly2 *link;
}*p2;

struct poly3
{
int coe,exp;
poly3 *link;
}*p3;

/*Function Declaration -------------------------------------------------------*/
public:

linklist();
void append( int coe1,int exp1,int select1 );
void calc();
void display();
};



/*List Constructor -----------------------------------------------------------*/
linklist::linklist()
{
p1=NULL;
p2=NULL;
p3=NULL;
}



/*Insert Node ----------------------------------------------------------------*/
void linklist::append(int coe1,int exp1,int select1)
{
if (select1==0)
{
poly1 *q1,*t1;

if( p1 == NULL )
{
p1 = new poly1;
p1->coe = coe1;
p1->exp = exp1;
p1->link = NULL;
}
else
{
q1 = p1;
while( q1->link != NULL )
q1 = q1->link;

t1 = new poly1;
t1->coe = coe1;
t1->exp = exp1;
t1->link = NULL;
q1->link = t1;
}
}
else if (select1==1)
{
poly2 *q2,*t2;

if( p2 == NULL )
{
p2 = new poly2;
p2->coe = coe1;
p2->exp = exp1;
p2->link = NULL;
}
else
{
q2 = p2;
while( q2->link != NULL )
q2 = q2->link;

t2 = new poly2;
t2->coe = coe1;
t2->exp = exp1;
t2->link = NULL;
q2->link = t2;
}
}
else if (select1==2)
{
poly3 *q3,*t3;

if( p3 == NULL )
{
p3 = new poly3;
p3->coe = coe1;
p3->exp = exp1;
p3->link = NULL;
}
else
{
q3 = p3;
while( q3->link != NULL )
q3 = q3->link;

t3 = new poly3;
t3->coe = coe1;
t3->exp = exp1;
t3->link = NULL;
q3->link = t3;
}
}
}



/*Polynomial Calculation -----------------------------------------------------*/
void linklist::calc()
{
int coe2,exp2,select2=2,count;
linklist ll;
poly1 *q1;
poly2 *q2;

for( q1 = p1 ; q1 != NULL ; q1 = q1->link )
{
count=0 ;
for( q2 = p2 ; q2 != NULL ; q2 = q2->link )
{
if(q1->exp==q2->exp)
{
coe2=q1->coe+q2->coe ;
exp2=q1->exp ;
cout << coe2 << " " << exp2 << endl ;
ll.append(coe2,exp2,select2);
count=1;
}
}
if (count==0)
{
ll.append(q1->coe,q1->exp,select2);
cout << q1->coe << " " << q1->exp << endl ;
}
}

for( q2 = p2 ; q2 != NULL ; q2 = q2->link )
{
count=0;
for( q1 = p1 ; q1 != NULL ; q1 = q1->link )
{
if(q2->exp==q1->exp)
{
count=1;
}
}
if(count==0)
{
ll.append(q2->coe,q2->exp,select2);
cout << q2->coe << " " << q2->exp << endl ;
}
}
}



/*Display Node ---------------------------------------------------------------*/
void linklist::display()
{
poly1 *q1;
cout<<endl;

for( q1 = p1 ; q1 != NULL ; q1 = q1->link )
cout << endl << "Coefficient = " << q1->coe << "\tExponent = " << q1->exp;

poly2 *q2;
cout<<endl;

for( q2 = p2 ; q2 != NULL ; q2 = q2->link )
cout << endl << "Coefficient = " << q2->coe << "\tExponent = " << q2->exp;

poly3 *q3;
cout<<endl;

for( q3 = p3 ; q3 != NULL ; q3 = q3->link )
cout << endl << "Coefficient = " << q3->coe << "\tExponent = " << q3->exp;

}



/*Main -----------------------------------------------------------------------*/
void main()
{
int looper,coe,exp,select;
linklist ll;

for(select=0;select<2;select++)
{
cout << "\nPolynomial " << (select+1) << endl ;
for (looper=0;looper<3;looper++)
{
cout << "Enter Coefficient : " ;
cin >> coe ;
cout << "Enter Exponent : " ;
cin >> exp ;
ll.append(coe,exp,select);
}
}
ll.calc();
ll.display();
getch() ;
}

matyus wrote:#include <iostream.h>
#include <conio.h>

. . . . .

/*Polynomial Calculation -----------------------------------------------------*/
void linklist::calc()
{
int coe2,exp2,select2=2,count;
linklist ll;
poly1 *q1;
poly2 *q2;

for( q1 = p1 ; q1 != NULL ; q1 = q1->link )
{
count=0 ;
for( q2 = p2 ; q2 != NULL ; q2 = q2->link )
{
if(q1->exp==q2->exp)
{
coe2=q1->coe+q2->coe ;
exp2=q1->exp ;
cout << coe2 << " " << exp2 << endl ;
ll.append(coe2,exp2,select2);
count=1;
}
}
if (count==0)
{
ll.append(q1->coe,q1->exp,select2);
cout << q1->coe << " " << q1->exp << endl ;
}
}

for( q2 = p2 ; q2 != NULL ; q2 = q2->link )
{
count=0;
for( q1 = p1 ; q1 != NULL ; q1 = q1->link )
{
if(q2->exp==q1->exp)
{
count=1;
}
}
if(count==0)
{
ll.append(q2->coe,q2->exp,select2);
cout << q2->coe << " " << q2->exp << endl ;
}
}
}

. . . . . . .