Question

求lingo按列求和的代码，约束条件是每一列之和等于1。另外，该矩阵是01矩阵，维数是20*72

Answer 1

sets:
row/1..20/;
col/1..72/;
mat(row,col):x;
endsets
@for(col(j):@sum(row(i):x(i,j))=1);
@for(mat:@bin(x));