Answer to Question #256366 in C for Amit

Question

Write a C code to add two polynomials having two numbers of unknown variables. 

Answer 1

#include <stdio.h>
#include <stdlib.h>
#define MAXDEGREE 90 
typedef struct
{
    int deg; 
    int coef[MAXDEGREE]; 
} poly;


int main()
{
    poly polynomialA;
    poly polynomialB;
    int i,j, maxdeg; 
    int terminator; 
    printf("\nPolynomial Additon\n");
    printf("Enter the number of degrees of  first polynomial: ");
         
    scanf("%d", &polynomialA.deg);
    printf("\nEnter the number of degrees of  first polynomial: ");
    scanf("%d", &polynomialB.deg);


    if(polynomialA.deg > polynomialB.deg) {
        maxdeg = polynomialA.deg;
    } else if (polynomialA.deg < polynomialB.deg) {
        maxdeg = polynomialB.deg;
        } else {
            maxdeg = polynomialA.deg;
        }




    printf("\nEnter all the coefficients of the first polynomial. Starting from the coefficient of the largest power");
    printf("\n\n");
    for(i=0; i<=maxdeg; i++) {
        scanf("%d", &polynomialA.coef[i]);
    }
    printf("\nEnter all the coefficients of the second polynomial. Starting from the coefficient of the largest power");
    for(j=0; j<=maxdeg; j++) {
        scanf("%d", &polynomialB.coef[j]);
    }
    printf("\n\n...");


   addpolynomials(polynomialA, polynomialB);
   
    scanf("%d", &terminator);
    return 0;


}


void addpolynomials(poly a, poly b)
{
    poly c;
    int y,z; 
    int maxdeg; 
    if(a.deg > b.deg) {
        maxdeg = a.deg;
    } else
    {
        maxdeg = b.deg;
    }
   
    c.deg = maxdeg;


    
    for(y =0; y <= maxdeg; y++) {
        c.coef[y] = a.coef[y] + b.coef[y];
    }
    
    printf("The sum of the two polynomial is:  \n");


    for(z = 0; z<=maxdeg; z++) {
        printf("%i  ", c.coef[z]);
    }




}