On Fri, Jan 13, 2017 at 09:35:54PM +0530, Saqib Shamsi wrote:
The problem that I wish to solve is to divide a (sored) list of integers into sublists such that each sublist contains numbers in consecutive sequence.
For example, *Input:* [1,2,3,7,8,10,11,12] *Output:* [[1,2,3],[7,8],[10,11,12]]
[...]
However, I was wondering if there was a better way of doing this. Any help would be highly appreciated.
Hello Saquib, you could try using a 'trick' like this: λ> zipWith (-) [1,2,3,7,8,10,11,12] (enumFrom 1) [0,0,0,3,3,4,4,4] Now you have an 'helper' list which can be glued to the first one with zip λ> zip [1,2,3,7,8,10,11,12] it [(1,0),(2,0),(3,0),(7,3),(8,3),(10,4),(11,4),(12,4)] and now grouped by using `groupBy` in Data.List. Does that help?