//YOUR_CODE
polynomial poly_arithmetic(polynomial P1, polynomial P2, int op)
{
//다항식 덧셈
if (op == 0)
{
polynomial P3_ADD;
int P1_pos = 0, P2_pos = 0, P3_pos = 0;
int degree_P1 = P1.degree;
int degree_P2 = P2.degree;
P3_ADD.degree = MAX(P1.degree, P2.degree);
while (P1_pos <= P1.degree&&P2_pos <= P2.degree)
{
if (degree_P1 > degree_P2)
{
P3_ADD.coef[P3_pos++] = P1.coef[P1_pos++];
degree_P1--;
}
else if (degree_P1 == degree_P2)
{
P3_ADD.coef[P3_pos++] = P1.coef[P1_pos++] + P2.coef[P2_pos++];
degree_P1--;
degree_P2--;
}
else
{
P3_ADD.coef[P3_pos++] = P2.coef[P2_pos++];
degree_P2--;
}
}
return P3_ADD;
}
//다항식 뺄셈
if (op == 1)
{
polynomial P3_SUB;
int P1_pos = 0, P2_pos = 0, P3_pos = 0;
int degree_P1 = P1.degree;
int degree_P2 = P2.degree;
P3_SUB.degree = MAX(P1.degree, P2.degree);
while (P1_pos <= P1.degree&&P2_pos <= P2.degree)
{
if (degree_P1 > degree_P2)
{
P3_SUB.coef[P3_pos++] = P1.coef[P1_pos++];
degree_P1--;
}
else if (degree_P1 == degree_P2)
{
P3_SUB.coef[P3_pos++] = P1.coef[P1_pos++] - P2.coef[P2_pos++];
degree_P1--;
degree_P2--;
}
else if (degree_P1 == 0)
{
P3_SUB.coef[P3_pos++] = -P2.coef[P2_pos++];
degree_P2--;
}
else
{
P3_SUB.coef[P3_pos++] = P2.coef[P2_pos++];
degree_P2--;
}
}
return P3_SUB;
}
//다항식 곱셈
if (op == 2)
{
polynomial P3_MUL;
int i, j, k;
int P1_pos = 0, P2_pos = 0, P3_pos = 0;
int degree_p1 = P1.degree;
int degree_p2 = P2.degree;
P3_MUL.degree = P1.degree + P2.degree;
for (i = 0; i <= P3_MUL.degree; i++)
{
P3_MUL.coef[i] = 0;
}
for (i = 0; i <= degree_p1; i++) {
for (j = 0; j <= degree_p2; j++) {
for (k = 0; k <= P3_MUL.degree; k++)
{
if ((i + j) == k)
P3_MUL.coef[k] += P1.coef[i] * P2.coef[j];
}
}
}
return P3_MUL;
}
}
polynomial poly_print(polynomial p)
{
int j;
for ( j = 0; j < p.degree; j++)
printf("%d ", p.coef[j]);
if ( j = p.degree)
printf("%d", p.coef[j]);
printf("\n");
}
이렇게 했는데 제출했더니 틀렸다고 뜹니다,! 어디서 틀렸는지 알려주세용
