disagreeLet the edges being:
1 2
2 0
1 3
3 0
1 4
4 0
is the max-flow 3? if true, then disagree since we can wait until the spy enter one of 2, 3 or 4.
opps! you are right.
The tunnel can be bombed at any time.
I didn't read the question carefully.
I didn't read the question carefully.