Answer to Question #244749 in Python for Lovely

Question

https://www.assignmentexpert.com/homework-answers/programming-and-computer-science/python/question-175894

Even though i wrote this correctly but i am not able to get propwr output

Answer 1

def read_polynom():
    n = int(input())
    p = {}
    for i in range(n):
        L = input().split()
        Pi = int(L[0])
        Ci = int(L[1])
        p[Pi] = Ci
    return p


def add_polynomilas(p, q):
    r = {}
    Pis = set(p).union(q)
    for Pi in Pis:
        if Pi in p:
            Ci = p[Pi]
        else:
            Ci = 0.0
        if Pi in q:
            Ci += q[Pi]
        if Ci != 0.0:
            r[Pi] = Ci
    return r

def tostring_polynom(p):
    res = ''
    first = True
    for Pi in sorted(p, reverse=True):
        Ci = p[Pi]
        if first:
            if Ci == 0 and Pi == 0:
                return '0'
            
            if Ci == 1 and Pi != 0:
                pass
            elif Ci == -1 and Pi != 0:
                res = '-'
            else:           
                res = f'{Ci}'
            first = False
            
        else:        
            if Ci > 0:
                res += ' + '
            elif Ci < 0:
                res += ' - '
            else:
                continue
            res += f'{abs(Ci)}'
        
        if Pi == 0:
            continue
        if Pi == 1:
            res += 'x'
        else:
            res += f'x^{Pi}'
    return res

def main():
    p = read_polynom()
    q = read_polynom()
    r = add_polynomilas(p, q)
    print(f'Add {tostring_polynom(p)} to {tostring_polynom(q)}')
    print(f'results {tostring_polynom(r)}')

if __name__ == '__main__':
    main()

#I don't know the problem since I am not able to see your output
#So I am assuming the code isn't working at all for you
#Make sure the names of the variables and fuctions are accurate, if poosible copy and paste directly from source
#The inputs should be in the format below and note that the inputs are space seperated

4
0 5
1 0
2 10
3 6
3
0 1
1 2
2 4
Add 6x^3 + 10x^2 + 5 to 4x^2 + 2x + 1
results 6x^3 + 14x^2 + 2x + 6