Created
December 13, 2012 18:51
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Split a list into two parts; the length of the first part is given.
Do not use any predefined predicates. Example:
?- split([a,b,c,d,e,f,g,h,i,k],3,L1,L2).
L1 = [a,b,c]
L2 = [d,e,f,g,h,i,k]
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| length_list([], 0). | |
| length_list([H|T], X) :- length_list(T, X1), X is X1+1, !. | |
| split_list([X|Y], 1, [X], Y). | |
| split_list([H|T], M, [H|L1], L2) :- split_list(T, M1, L1, L2), M is M1+1. |
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