[Tutor] extracting numbers from a list

[Asrarahmed Kadri]

My solution : (i have tested it)


list1 = [10,15,18,20,25,30,40]

for i in range(len(list1)-1):
    print list1[i],list1[i+1]
    list1[i+1] += 1

Note:

# print the consecutive elements; for the first pass of the loop the
elements are unchanged, for the remaining we add one.





On 10/16/06, kumar s <ps_python at yahoo.com> wrote:
>
> hi :
>
> I have a simple question to ask tutors:
>
> list A :
>
> a = [10,15,18,20,25,30,40]
>
> I want to print
> 10 15 (first two elements)
> 16 18 (16 is last number +1)
> 19 20
> 21 25
> 26 30
> 31 40
>
> >>> fx = a[0]
> >>> fy = a[1]
> >>> b = a[2:]
> >>> ai = iter(b)
> >>> last = ai.next()
> >>> for j in ai:
> ...     print fy+1,last
> ...     last = j
> ...
> 16 18
> 16 20
> 16 25
> 16 30
>
>
> can any one help please.
>
> thank you
>
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