In repsonse to this question: Write a program that prints the first 100 members
of the sequence 2, -3, 4, -5, 6, -7, 8.
This is my solution it works but ugly.
series = range(2,100)
# answer = [(x,(y* -1)) for x, y in series[::2]]
# print(answer)
answer = []
for item in series:
if item % 2 != 0:
answer.append(item * -1)
else:
answer.append(item)
print(answer)
I know I should be better off doing this with map but cannot get it to work. I
understand also that map returns a generator so this solution should only
working in python2(correct me please if I am wrong).
In [6]: map?
Type: builtin_function_or_method
String Form:<built-in function map>
Namespace: Python builtin
Docstring:
map(function, sequence[, sequence, ...]) -> list
Just getting something wrong
list(map((lambda x: x * -1 if (x%2 != 0)), series))
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