Residual Network Given a flow network G =(V,E)and a flow f,the residual network of G induced by f is Gr =(V,Er),where Ef={(u,v)∈V×V:cr(u,v)>0}. (26.3) 12/12 12 V3 11/16, 15/20 4/9 8/13 4/4 11/14 残存网络中找不到 源到目的地的路径， 12/12 12 所有增广路确定全 11/16, 19/20 部找到？ 12/13 44 11/14Residual Network 残存网络中找不到 源到目的地的路径， 所有增广路确定全 部找到？