| <instance format="XCSP3" type="CSP"> | |
| <variables> | |
| <array id="x" size="[9]"> 0..8 </array> | |
| <array id="d" size="[8]"> 1..8 </array> | |
| </variables> | |
| <constraints> | |
| <allDifferent> x[] </allDifferent> | |
| <allDifferent> d[] </allDifferent> | |
| <group> | |
| <intension> eq(%0,dist(%1,%2)) </intension> | |
| <args> d[0] x[1] x[0] </args> | |
| <args> d[1] x[2] x[1] </args> | |
| <args> d[2] x[3] x[2] </args> | |
| <args> d[3] x[4] x[3] </args> | |
| <args> d[4] x[5] x[4] </args> | |
| <args> d[5] x[6] x[5] </args> | |
| <args> d[6] x[7] x[6] </args> | |
| <args> d[7] x[8] x[7] </args> | |
| </group> | |
| </constraints> | |
| </instance> | |