fern.ifs

Lin-Kernighan heuristic for the TSP and minimum weight perfect matching

4
 0     0     0    0.16 0 0    0.01
 0.85  0.04 -0.04 0.85 0 1.6  0.85
 0.2  -0.26  0.23 0.22 0 1.6  0.07
-0.15  0.28  0.26 0.24 0 0.44 0.07