Last list item: Difference between revisions

=={{header|Python}}==

{{trans|Julia}}

<lang python>""" Rosetta code task: Last list item """

def add_least_reduce(lis):

""" Reduce lis: sum least two elements adding sum to list. Will take len(list) - 1 steps """

while len(lis) > 1:

lis.append(lis.pop(lis.index(min(lis))) + lis.pop(lis.index(min(lis))))

print('Interim list:', lis)

return lis

LIST = [6, 81, 243, 14, 25, 49, 123, 69, 11]

print(LIST, ' ==> ', add_least_reduce(LIST.copy()))

</lang>{{out}}

<pre>

Interim list: [81, 243, 14, 25, 49, 123, 69, 17]

Interim list: [81, 243, 25, 49, 123, 69, 31]

Interim list: [81, 243, 49, 123, 69, 56]

Interim list: [81, 243, 123, 69, 105]

Interim list: [243, 123, 105, 150]

Interim list: [243, 150, 228]

Interim list: [243, 378]

Interim list: [621]

[6, 81, 243, 14, 25, 49, 123, 69, 11] ==> [621]

</pre>