Concatenating arrays or sets

[Carl Örnberg]

I have two questions for a beginner of minizinc:

 1. if we have A =  [1,2,3,3,4,5,6]; B = [2,3,1,4,5,6,4]; How do I create 7x2 matrix in minizinc that has A has first column and B as second column? 

2. How do I make an array of length 6 (nbr of unique entries)  which has sets representing the vertices from each node from A and B in a undirected graph? for example I seek an array like [{2,1,3},{3},{1,4,2},{4,5,6},{5,6},{4}] 

I have trouble with the syntax...

[Jip Dekker]

I can answer your first question. You can write an array comprehension that transposes and concatenates the columns:

any: A = [1,2,3,3,4,5,6];

any: B = [2,3,1,4,5,6,4];
any: C ::output = [(i,j): if j == 1 then A[i] else B[i] endif | i in 1..7, j in 1..2];

I'm not sure about how the arrays represent undirected graphs, and cannot relate the example output and input, so hopefully someone else can fill in those details.

[Mohamed H. Ibrahim]

For the second question, I think you can use an adjacency matrix with zeros to represent no connection.