n: 40 m: 229 packed: 13 density: 0 nodes: 0 solveTime: 1610 buildTime: 30 solved: true
{0,1,19}
{2,10,39}
{3,11,24}
{4,18,21}
{5,15,20}
{6,31,35}
{7,12,22}
{8,13,23}
{9,36,37}
{14,27,34}
{16,33,38}
{25,30,32}
{26,28,29}