如上图所示，建反边的时候 $\rm lim$ 要等于 $0$ 并且 $\rm cost$ 要等于负 $c$
by 言琢დ @ 2024-02-06 11:13:25
orz
by S0CRiA @ 2024-02-06 11:33:29
@[S0CRiA](/user/390770) orz
by Kent999 @ 2024-02-29 11:20:50