c code to add and multiply two polynomials
write a c code to add and multiply two polynomials
Write a program to add and multiply two polynomials using an array.
Code
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
void setvalue(int *arr, int n)
{
int k;
for (int i = 0; i < n; i++)
{
printf("enter the cofficient of x^%d\n", i);
scanf("%d", &k);
*(arr + i) = k;
}
}
void display(int *arr, int n)
{
int e = 0;
for (int i = 0; i < n; i++)
{
printf("%dx^%d ", *(arr + i), i);
if (e < n - 1)
{
printf("+ ");
e++;
}
}
printf("\n");
}
int *addpoly(int *m, int *n, int k)
{
int *l = (int *)malloc(k * sizeof(int));
for (int i = 0; i < k; i++)
{
l[i] = m[i] + n[i];
}
return l;
}
void productpoly(int *m, int *n, int b)
{
int *l = (int *)calloc(b + b - 1, sizeof(int));
for (int i = 0; i < b; i++)
{
for (int j = 0; j < b; j++)
{
l[i + j] = l[i + j] + m[i] * n[j];
}
}
printf("\n");
printf("THE PRODUCT IS\n");
printf("\n");
int e = 0;
for (int i = 0; i < b + b - 1; i++)
{
printf("%dx^%d ", *(l + i), i);
if (e < b + b - 2)
{
printf("+ ");
e++;
}
}
}
int main()
{
int d1, d2, d;
printf("enter the higest degree of variable in polynomial 1 --> ");
scanf("%d", &d1);
printf("enter the higest degree of variable in polynomial 2 --> ");
scanf("%d", &d2);
if (d1 > d2)
{
d = d1;
}
else
{
d = d2;
}
d = d + 1;
int *poly1 = (int *)malloc(d * sizeof(int));
int *poly2 = (int *)malloc(d * sizeof(int));
int *poly3 = (int *)malloc(d * sizeof(int));
setvalue(poly1, d);
setvalue(poly2, d);
display(poly1, d);
display(poly2, d);
poly3 = addpoly(poly1, poly2, d);
printf("\n");
printf("THE SUM IS\n");
printf("\n");
display(poly3, d);
productpoly(poly1, poly2, d);
return 0;
}