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Book exercise in lists
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Book exercise in lists
#1
My university book has lots of exercises to practice and i found this one which wants to make a list with lists and then find sum of each list.
As example it gives that the result should be something like this:
ex1=[[1],[1,2],[1,2,3],[1.2.3.4]]

so when i am trying to make this list with this code
ex1=[]
for i in range (5):
    ex1.append(range(1,5-i))
print(ex1)
i get this result:
[[1, 2, 3, 4], [1, 2, 3], [1, 2], [1], []]

which is reversed of what the book wants and also i get an empty [].
why is that happening?

i found why there is the empty [] and i change the code into this:
ex1=[]
for i in range (4):
    ex1.append(range(1,5-i))
print(ex1)
but i still get the reverse result. Huh
[[1, 2, 3, 4], [1, 2, 3], [1, 2], [1]]


[quote='sonedap' pid='70631' dateline='1549127665']
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Messages In This Thread
Book exercise in lists - by sonedap - Feb-02-2019, 06:19 PM
RE: Book exercise in lists - by ichabod801 - Feb-02-2019, 06:58 PM
RE: Book exercise in lists - by sonedap - Feb-02-2019, 07:51 PM
RE: Book exercise in lists - by perfringo - Feb-02-2019, 10:15 PM
RE: Book exercise in lists - by ichabod801 - Feb-02-2019, 09:15 PM
RE: Book exercise in lists - by sonedap - Feb-02-2019, 10:08 PM
RE: Book exercise in lists - by sonedap - Feb-02-2019, 10:24 PM
RE: Book exercise in lists - by perfringo - Feb-02-2019, 10:50 PM
RE: Book exercise in lists - by sonedap - Feb-02-2019, 10:58 PM
RE: Book exercise in lists - by perfringo - Feb-02-2019, 11:32 PM
RE: Book exercise in lists - by sonedap - Feb-03-2019, 08:53 AM
RE: Book exercise in lists - by perfringo - Feb-03-2019, 09:11 AM
RE: Book exercise in lists - by sonedap - Feb-03-2019, 10:03 AM
RE: Book exercise in lists - by perfringo - Feb-03-2019, 10:09 AM
RE: Book exercise in lists - by sonedap - Feb-03-2019, 12:29 PM
RE: Book exercise in lists - by perfringo - Feb-03-2019, 12:38 PM
RE: Book exercise in lists - by sonedap - Feb-03-2019, 06:39 PM
RE: Book exercise in lists - by ichabod801 - Feb-03-2019, 08:37 PM

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