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dekker.one
1include "alldifferent.mzn";
2
3int: n;
4
5array[1..n] of var 1..n: x; % 数字的序列
6array[1..n-1] of var 1..n-1: u; % 差的序列
7
8constraint alldifferent(x);
9constraint alldifferent(u);
10constraint forall(i in 1..n-1)(u[i] = abs(x[i+1] - x[i]));
11
12solve :: int_search(x, first_fail, indomain_min, complete)
13 satisfy;
14output ["x = ",show(x),"\n"];