27 lines
519 B
Python
27 lines
519 B
Python
import operator
|
|
from _helpers import listInput
|
|
|
|
def diff(a):
|
|
return list(map(operator.sub, a[1:], a[:-1]))
|
|
|
|
def formatNumber(x):
|
|
if x % 1 == 0:
|
|
return int(x)
|
|
else:
|
|
return x
|
|
|
|
sequence = listInput('Please input a sequence of numbers')
|
|
row1 = diff(sequence)
|
|
row2 = diff(row1)
|
|
|
|
a = formatNumber(row2[0] / 2)
|
|
b = formatNumber(row1[0] - (3 * a))
|
|
c = formatNumber(sequence[0] - a - b)
|
|
|
|
print('''
|
|
a = {0}
|
|
b = {2}
|
|
c = {4}
|
|
|
|
Equation: {0}n²{1}{2}n{3}{4}
|
|
'''.format(a, '+' if b >= 0 else '', b, '+' if c >= 0 else '', c))
|