Help me please! In list a=[a1, a2, ..., an] delete all elements standing between the minimum positive and the maximum negative.

Question

In list a=[a1, a2, ..., an] delete all elements standing between the minimum positive and the maximum negative elements. in Python

Answer 1

maxneg = max(list(filter(isneg,a)))
minpos = min(list(filter(ispos,a)))

b = list(filter(lambda x: x<max or x>min,a))

ispos ,isneg are to be defined
I am sure you can do it (-:

Answer 2

a = [min(a), max(a)]

Answer 3

Not exactly sure if I understand.

see if this is what you want.
a = [3, -3, 7, -7, 2, 5]
min pos : 2
max neg: -3
output is then [3, -3, 2, 5]
Is that what you want?

If so, here it is
https://code.sololearn.com/ciD1EHMBl3NO/?ref=app

Answer 4

Ada min positive not max positive thats why<= or < 0

Answer 5

Markus Kaleton Working with a sorted list makes it a trivial exercise.

Answer 6

i had to test my previous answer since I remembered that list mutilations during iterations are absolute shait and such my prev answer doesnt even work. i found that the simplest way for me to accompish this is the following:

a = [-500, -25, -11, -2, 0, 2, 3, 4, 6]
newa = []

def remm(a):
for i in a:
if i == min(a) or i >= 0:
newa.append(i)
print(newa)

remm(a)

Answer 7

Louis I had the assumption that he is working with a sorted list.

Answer 8

Louis it's not much harder if he'd be handling your example

Answer 9

I think you are looking for this:

https://code.sololearn.com/cBVB48PeFW73/?ref=app