n: 40 m: 200 packed: 13 density: 0 nodes: 0 solveTime: 690 buildTime: 30 solved: true
{0,18,19}
{1,28,34}
{2,17,25}
{3,22,39}
{4,36,38}
{5,14,15}
{6,20,37}
{7,26,29}
{8,21,30}
{9,10,32}
{11,13,24}
{12,23,27}
{31,33,35}