As we know, now there is efficient algorithms to find the overall min-cut in a directed graph, e.g. Hao and Orlin (1994). ) @ t. @8 v; U. [/ p2 `5 ~6 K # X5 M9 E; ]0 R& gNow my problem is to find an overall min-cut just separating some given node pairs, not all the node pairs. For example, I have an 8-node digraph with capacities on each arc and want to find the overall min-cut separating some node pairs such as 8 and 1, 6 and 3, 7 and 1. The algorithm of Hao and Orlin (1994) cannot solve my problem. 2 U1 q1 t9 L7 n( H! q" k% c8 j! r% ?; p
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不好意思,我用英文至少为了把问题说的更清楚一点