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[74] | 1 | #include <iostream> |
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| 2 | #include <fstream> |
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| 3 | |
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| 4 | #include "../list_graph.hh" |
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| 5 | #include "../marci/dimacs.hh" |
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| 6 | #include "f_ed_ka.h" |
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| 7 | #include "../marci/time_measure.h" |
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| 8 | |
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| 9 | using namespace marci; |
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| 10 | |
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| 11 | // Use a DIMACS max flow file as stdin. |
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| 12 | // read_dimacs_demo < dimacs_max_flow_file |
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| 13 | |
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| 14 | int main(int, char **) { |
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| 15 | typedef ListGraph::NodeIt NodeIt; |
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| 16 | typedef ListGraph::EachEdgeIt EachEdgeIt; |
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| 17 | |
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| 18 | ListGraph G; |
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| 19 | NodeIt s, t; |
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| 20 | ListGraph::EdgeMap<int> cap(G); |
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| 21 | readDimacsMaxFlow(std::cin, G, s, t, cap); |
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| 22 | |
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| 23 | std::cout << "edmonds karp demo..." << std::endl; |
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| 24 | ListGraph::EdgeMap<int> flow(G); //0 flow |
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| 25 | |
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| 26 | int ret; |
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| 27 | double pre_time=currTime(); |
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| 28 | ret = maxFlow(G,flow,cap,s,t); |
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| 29 | double post_time=currTime(); |
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| 30 | //std::cout << "maximum flow: "<< std::endl; |
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| 31 | //for(EachEdgeIt e=G.first<EachEdgeIt>(); e.valid(); ++e) { |
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| 32 | // std::cout<<"("<<G.tail(e)<< "-"<<flow.get(e)<<"->"<<G.head(e)<<") "; |
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| 33 | //} |
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| 34 | //std::cout<<std::endl; |
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| 35 | std::cout << "elapsed time: " << post_time-pre_time << " sec"<< std::endl; |
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| 36 | std::cout << "flow value: "<< ret << std::endl; |
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| 37 | |
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| 38 | return 0; |
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| 39 | } |
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