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#include < stdio.h >
#include < conio.h >
#define MAX 20
struct addpolynomial {
int exp, coef;
};
void main() {
struct addpolynomial p1[MAX], p2[MAX], p3[MAX];
int max1, max2, max3;
clrscr();
printf("nEnter first addpolynomial : ");
max1 = read_addpolynomial(p1);
printf("nEnter second addpolynomial : ");
max2 = read_addpolynomial(p2);
max3 = add_addpolynomial(p1, p2, p3, max1, max2);
printf("nFirst addpolynomial is ");
print_addpolynomial(p1, max1);
printf("nSecond addpolynomial is ");
print_addpolynomial(p2, max2);
printf("n The resultant addpolynomial after addition is");
print_addpolynomial(p3, max3);
}
//function to read polynomial
int read_addpolynomial(struct addpolynomial p[]) {
int i, texp;
i = 0;
printf("nEnter exp ( use -1 to exit) : ");
scanf("%d", &texp);
while (texp != -1) {
p[i].exp = texp;
printf("nEnter coef : ");
scanf("%d", &p[i].coef);
i++;
printf("nEnter exp ( use -1 to exit) : ");
scanf("%d", &texp);
}
return (i);
}
//function to print polynomial
int print_addpolynomial(struct addpolynomial p[], intMAX1) {
int i;
for (i = 0; i < max1; i++)
printf("%+dX%d ", p[i].coef, p[i].exp);
return;
}
//function to ad polynomials
int add_addpolynomial( p1, p2, p3, max1, max2)
struct addpolynomial p1[], p2[], p3[];
intMAX1, max2;
{
int i,j,k;
i = j = k = 0;
while ( i <max1 && j <max2)
{
if( p1[i].exp > p2[j].exp)
{
p3[k] = p1[i];
k++;
i++;
}
else
if( p1[i].exp < p2[j].exp)
{
p3[k] = p2[j];
k++;
j++;
}
else
{
p3[k].exp = p1[i].exp;
p3[k].coef = p1[i].coef + p2[j].coef;
i++;
j++;
k++;
}
}
while( i <max1 )
{
p3[k] = p1[i];
k++;
i++;
}
while( j <max2 )
{
p3[k] = p2[j];
k++;
j++;
}
return(k);
}
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