#include <stdio.h>
#include <stdlib.h>
#define MAX_DEGREE 100

typedef struct {
	int degree;
	float coef[MAX_DEGREE];
}polynomial;

void input(char poly);
void add_poly();
void result();
polynomial a,b,c;

void main()
{
	input('a');
	input('b');
	add_poly();
	result();
}
void input(char poly)
{
	int i,j,k;
	printf("%c(x) ´ÙÇ×½ÄÀÇ Â÷¼ö¸¦ ÀÔ·ÂÇϽÿÀ :",poly);

	if(poly == 'a') 
	{
		scanf("%d", &b.degree);
		k = a.degree;
	}
	else 
	{
		scanf("%d",&b.degree);
		k = b.degree;
	}
	printf("\n´ÙÇ×½ÄÀÇ ÃÖ°íÂ÷ Ç׺ÎÅÍ °è¼ö¸¦ ÀÔ·ÂÇϽÿÀ. \n");
		j = k;

		for(i = 0; i <= k; i++)
		{
			printf("x^%dÀÇ °è¼ö¸¦ ÀÔ·ÂÇϼ¼¿ä : ", j--);
			if(poly == 'a')
				scanf("%f",&a.coef[i]);
			else
				scanf("%f",&b.coef[i]);
		}
		printf("\n\n");
}
void add_poly()
{
	int i,j;
	float sum;
	c.degree = (a.degree >= b.degree) ? a.degree : b.degree;

	j = a.degree - b.degree;
	for (i = c.degree; i >= 0; i--)
	{
		if ((i - abs(j)) >= 0)
		{
			if(j > 0)
			{
				sum = a.coef[i] + b.coef[i-abs(j)];
				c.coef[i] = sum;
			}
			else if (j == 0)
			{
				sum = a.coef[i] + b.coef[i];
				c.coef[i] = sum;
			}
			else if(j < 0)
			{
				sum = a.coef[i-abs(j)] + b.coef[i];
				c.coef[i] = sum;
			}
		}
		else
			c.coef[i] = (j >= 0) ? a.coef[i] : b.coef[i];
	}
}
void result()
{
	int i;
	printf("°á°ú´Â : ");
	for(i = 0; i <= c.degree; i++)
	{
		if(c.degree-i !=0)
		{
			if(c.coef[i] !=0)
			{
				printf("%.0fx^%d",c.coef[i],c.degree-i);
				printf(" + ");
			}
		}
		else
			printf("%.0f\n",c.coef[i]);
	}
}