Answer to Question #203357 in Python for sudheer

Question

n = int(input())

polinom_a =[0 for item in range(n)]                      

for item in range(n):

  p, c = input().split(' ')

  polinom_a[int(p)] = int(c)

m = int(input())

polinom_b =[0 for item in range(m)]

for item in range(m):

  p, c = input().split(' ')

  polinom_b[int(p)] = int(c)

pol_max , pol_min = polinom_a , polinom_b

if len(pol_min) > len(pol_max):

  pol_max , pol_min = polinom_b , polinom_a 

for item in range(len(pol_min)):

  pol_max[item] += pol_min[item]

for item in range(len(pol_max)-1,0,-1):

  if item == 0:

    continue

  print (f'{pol_max[item]}x^{item} + ',end='')

print(pol_max[0])

ouput:6x^3 + 14x^2 + 2x^1 + 6
the ouput should be like this:6x^3 + 14x^2 + 2x + 6 
after adding two polynomials when we get "0" as output and it should print output as:"0"

so,please can anyone make correct code?

Answer 1

polinom = {}
for i in range(2):
  n = int(input('n '))
  for item in range(n):
    p, c = input('p c ').split(' ')
    p, c = int(p), int(c)
    if p in polinom:
      polinom[p] += c
    else:
      polinom[p] = c
res = ''
if len(polinom) == 0:
  pass
else:
  flag = True
  for p in polinom:
    if polinom[p] == 0:
      continue
    if polinom[p] < 0:
      if flag:
        res += '-'
      else:
        res += ' - '
    else:
      if not flag:
        res += ' + '
    flag = False
    if (abs(polinom[p]) == 1) and p == 0:
      res += '1'
      continue
    if abs(polinom[p]) != 1:
      res += str(abs(polinom[p]))
    if p < 0:
      res += 'x^({})'.format(p)
    elif p == 1:
      res += 'x'
    elif p > 0:
      res += 'x^{}'.format(p)
if len(res) == 0:
  print('0')
else:
  print(res)