样例 TLE 了，求助/kk

P4015 运输问题

费用流是粘的板子，按理说也不会错吧
by YamadaRyou @ 2022-06-06 00:23:44

%您会网络流
by kawaii__yuyu @ 2022-06-06 08:08:09

过了，Orz int256 ![qq_emoji: bx](https://z3.ax1x.com/2021/05/30/2VNbwQ.png)![qq_emoji: bx](https://z3.ax1x.com/2021/05/30/2VNbwQ.png)![qq_emoji: bx](https://z3.ax1x.com/2021/05/30/2VNbwQ.png)
by YamadaRyou @ 2022-06-06 08:34:56