Test_14d  cost of flow (Kristofides, 342)
1 -   (1 = )
0 -  (1 = )
1 -  (1 = )
7 -  
A B C D E F G
A -> B=7 D=13 F=28
B -> C=25 D=4 E=10
C -> G=5
D -> C=6 F=5
E -> G=12
F -> E=3 G=7
G -> 

FLOW:
AB= 0 16
AD= 0 11
AF= 0 13
BC= 0 17
BD= 0 18
BE= 0 16
CG= 0 22
DC= 0 12
DF= 0 19
EG= 0 16
FE= 0 10
FG= 0  5
