Poly_addtn_c.c

#include<stdio.h>
#include<stdlib.h>

void polynomial_insert(int *poly,int poly_size);
void polynomial_add(int *poly_1,int *poly_2,int *add,int poly_1_size,int poly_2_size);
void polynomial_display(int *poly,int poly_size);

int main()
{
    int p1_size,p2_size,size,i;

    printf("Enter the degree of Polynomial P1:");
    scanf("%d",&p1_size);
    printf("Enter the degree of Polynomial P2:");
    scanf("%d",&p2_size);

    int *p1=(int *)malloc(p1_size*sizeof(int));
    int *p2=(int *)malloc(p2_size*sizeof(int));
    size = (p1_size>p2_size?p1_size:p2_size);       //Find the polynomial with higher degree.
    int *add=(int *)malloc(size*sizeof(int));

    /*Polynomial P1 Coefficients Insert*/
    printf("\nPolynomial 1\n==========\n\n");
    polynomial_insert(p1,p1_size);

    /*Polynomial P2 Coefficients Insert*/
    printf("\nPolynomial 2\n==========\n\n");
    polynomial_insert(p2,p2_size);

    polynomial_add(p1,p2,add,p1_size,p2_size);

    /*-----------------Displaying Contents----------------------*/

    /*Clear Display*/
    system("cls");
    system("color 2F");

    /*Polynomial P1 Display*/
    printf("\n\nP1(x)= ");
    polynomial_display(p1,p1_size);

    /*Polynomial P2 Display*/
    printf("\t+\n\nP2(x)= ");

    polynomial_display(p2,p2_size);
    /*Polynomial P1+P2 Sum*/
    printf("\n");
    for(i=0;i<(p1_size>p2_size?p1_size:p2_size)*9;i++)
        printf("-");
    printf("\n\nP3(x)= ");
    polynomial_display(add,size);
}


void  polynomial_insert(int *poly,int poly_size)
{
    int i;
    for(i=0;i<poly_size;i++)
    {
        printf("a(%d):",i);
        scanf("%d",poly++);
    }
}

void polynomial_add(int *poly_1,int *poly_2,int *add,int poly_1_size,int poly_2_size)
{
    int size=0,i;
    size=poly_1_size>poly_2_size?poly_1_size:poly_2_size;

    for(i=0;i<size;i++)
        *(add++)=(i>=poly_1_size?0:*poly_1++)+(i>=poly_2_size?0:*poly_2++);

}

void polynomial_display(int *poly,int poly_size)
{
    int i;
    for(i=0;i<poly_size;i++)
        if(!i)
            printf("%d",*poly++);
        else
            printf(" + %dx^(%d)",*poly++,i);
}