TASK:2 JAM A_B=B_A？

[xiao]

Are all roads uni-directional or Should we consider each road to be bi-directional ?
Eg. Suppose A_B is a road jammed , then the path from A to B is jammed right ? If the path from B to A is jammed , it will be separately mentioned right?

[Swietlicka]

Yes, that's right: the graph of streets is directed, ie. the segments are one-way (A_B != B_A)

Joanna Świetlicka, TunedIT

[xiao]

Thanks a lot