10 lines
253 B
Plaintext
10 lines
253 B
Plaintext
|
#const n = 20.
|
||
|
|
#const k = 5.
|
||
|
|
|
||
|
|
% n-Queens encoding
|
||
|
|
|
||
|
|
{ q(I,1..n) } == 1 :- I = 1..n.
|
||
|
|
{ q(1..n,J) } == 1 :- J = 1..n.
|
||
|
|
:- { q(D-J,J) } >= 2, D = 2..2*n.
|
||
|
|
:- { q(D+J,J) } >= 2, D = 1-n..n-1.
|
||
|
|
:- q(X1, Y1), q(X2, Y2), X1 != X2, |(X1 - X2)| + |(Y1 - Y2)| <= k.
|