examples/sample.min
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     1 c sample.min
       
     2 c
       
     3 c This is an example of the minimum cost flow problem data
       
     4 c in DIMACS format.
       
     5 c
       
     6 p min 9 14
       
     7 c
       
     8 n 1 20
       
     9 n 9 -20
       
    10 c
       
    11 a 1 2 0 14 0
       
    12 a 1 4 0 23 0
       
    13 a 2 3 0 10 2
       
    14 a 2 4 0  9 3
       
    15 a 3 5 2 12 1
       
    16 a 3 8 0 18 0
       
    17 a 4 5 0 26 0
       
    18 a 5 2 0 11 1
       
    19 a 5 6 0 25 5
       
    20 a 5 7 0  4 7
       
    21 a 6 7 0  7 0
       
    22 a 6 8 4  8 0
       
    23 a 7 9 0 15 3
       
    24 a 8 9 0 20 9
       
    25 c
       
    26 c eof