n: 40 m: 80 packed: 13 density: 0 nodes: 0 solveTime: 50 buildTime: 10 solved: true
{0,21,38}
{1,5,13}
{2,22,34}
{3,16,28}
{4,6,7}
{8,11,30}
{9,23,27}
{10,18,26}
{12,19,35}
{14,15,39}
{17,24,32}
{20,25,33}
{29,31,37}