Mon Jul 27 13:28:02 2026 

tsp_att48_test():
  R version 4.1.2 (2021-11-01) 
  tsp_att48() returns the 48 cities in the AT&T TSP challenge.

  City coordinates:

      [,1] [,2]
 [1,] 6734 1453
 [2,] 2233   10
 [3,] 5530 1424
 [4,]  401  841
 [5,] 3082 1644
 [6,] 7608 4458
 [7,] 7573 3716
 [8,] 7265 1268
 [9,] 6898 1885
[10,] 1112 2049
[11,] 5468 2606
[12,] 5989 2873
[13,] 4706 2674
[14,] 4612 2035
[15,] 6347 2683
[16,] 6107  669
[17,] 7611 5184
[18,] 7462 3590
[19,] 7732 4723
[20,] 5900 3561
[21,] 4483 3369
[22,] 6101 1110
[23,] 5199 2182
[24,] 1633 2809
[25,] 4307 2322
[26,]  675 1006
[27,] 7555 4819
[28,] 7541 3981
[29,] 3177  756
[30,] 7352 4506
[31,] 7545 2801
[32,] 3245 3305
[33,] 6426 3173
[34,] 4608 1198
[35,]   23 2216
[36,] 7248 3779
[37,] 7762 4595
[38,] 7392 2244
[39,] 3484 2829
[40,] 6271 2135
[41,] 4985  140
[42,] 1916 1569
[43,] 7280 4899
[44,] 7509 3239
[45,]   10 2676
[46,] 6807 2993
[47,] 5185 3258
[48,] 3023 1942

  Optimal ordering:

 [1]  1  8 38 31 44 18  7 28  6 37 19 27 17 43 30 36 46 33 20 47 21 32 39 48  5
[26] 42 24 10 45 35  4 26  2 29 34 41 16 22  3 23 14 25 13 11 12 15 40  9

  Cost of round trip 33523.71 
  Graphics saved as " tsp_att48.png "
NULL

tsp_att48_test():
  Normal end of execution.
Mon Jul 27 13:28:02 2026