p1_03.pl

loading
details
attribute value
description
owner Johannes Waldmann
uploaded 2017-08-17 03:45:08.0
disk size 428 Bytes
downloadable true
type
attribute value
name no_type
processor id 1
description this is the default benchmark type for rejected benchmarks and benchmarks that are not associated with a type.
owning community none
loading contents 
%Source: https://sites.google.com/site/prologsite/prolog-problems
%query:element_at(f,g,g).
% 1.03 (*): Find the K'th element of a list.
% The first element in the list is number 1.

% element_at(X,L,K) :- X is the K'th element of the list L
%    (element,list,integer) (?,?,+)

% Note: nth1(?Index, ?List, ?Elem) is predefined

element_at(X,[X|_],1).
element_at(X,[_|L],K) :- K > 1, K1 is K - 1, element_at(X,L,K1).
popout

content may be truncated. 'popout' for larger text window.

actions get anonymous link download benchmark