How to reverse a given array of numbers in Python 3?

Question

For example:

I have an array number like

n = int(input().strip())           # 4
arr = map(int,input().strip().split(' ')) #2 4 3 1
print(arr[::-1])

inputs:

4 
2 4 3 1

My output is [1,3,4,2]

But actual output must be 1 3 4 2

How do I implement this using python 3?

You question isn't about reversing a list, it's about providing a string output for a list. — chepner
– chepner, Commented Mar 17, 2017 at 14:55
just print(*arr[::-1]), as chepner said, it's the outputting that your question's about. — Dimitris Fasarakis Hilliard
– Dimitris Fasarakis Hilliard, Commented Mar 17, 2017 at 14:56
Also, the output of map isn't sliceable in Python 3, so your code doesn't produce the output you claim it does. — chepner
– chepner, Commented Mar 17, 2017 at 14:59

Mureinik · Accepted Answer · 2017-03-17 14:56:27Z

1

You could re-join the list to a string:

print(" ".join([str(x) for x in arr]))

answered Mar 17, 2017 at 14:56

Mureinik

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Comments

Vlad Bezden · Accepted Answer · 2019-01-24 17:34:14Z

0

you can just unpack list using * operator

>>> arr = [*range(5)]
>>> print(*arr)
0 1 2 3 4

answered Jan 24, 2019 at 17:34

Vlad Bezden

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