166 lines
4.3 KiB
C++
166 lines
4.3 KiB
C++
//=======================================================================
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// Copyright 1997, 1998, 1999, 2000 University of Notre Dame.
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// Authors: Andrew Lumsdaine, Lie-Quan Lee, Jeremy G. Siek
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//
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// Distributed under the Boost Software License, Version 1.0. (See
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// accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//=======================================================================
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//
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// Sample output:
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//
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// 0 --(8, 10)--> 1
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//
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// 1 --(12, 20)--> 4 --(12, 40)--> 3
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// <--(8,10)-- 0 <--(16,20)-- 2
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// 2 --(16, 20)--> 1
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// <--(16,20)-- 5
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// 3 --(12, 40)--> 6
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// <--(12,40)-- 1
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// 4 --(12, 20)--> 7
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// <--(12,20)-- 1
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// 5 --(16, 20)--> 2
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// <--(16,20)-- 6
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// 6 --(16, 20)--> 5 --(8, 10)--> 8
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// <--(12,20)-- 7 <--(12,40)-- 3
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// 7 --(12, 20)--> 6
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// <--(12,20)-- 4
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// 8
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// <--(8,10)-- 6
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//
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//
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// 0 --(8, 1)--> 1
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//
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// 1 --(12, 2)--> 4 --(12, 3)--> 3
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// <--(8,1)-- 0 <--(16,4)-- 2
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// 2 --(16, 4)--> 1
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// <--(16,7)-- 5
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// 3 --(12, 5)--> 6
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// <--(12,3)-- 1
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// 4 --(12, 6)--> 7
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// <--(12,2)-- 1
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// 5 --(16, 7)--> 2
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// <--(16,8)-- 6
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// 6 --(16, 8)--> 5
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// <--(12,10)-- 7 <--(12,5)-- 3
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// 7 --(12, 10)--> 6
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// <--(12,6)-- 4
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// 8
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//
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#include <boost/config.hpp>
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#include <iostream>
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#include <boost/utility.hpp>
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#include <boost/property_map/property_map.hpp>
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#include <boost/graph/adjacency_list.hpp>
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using namespace boost;
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using namespace std;
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enum edge_myflow_t
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{
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edge_myflow
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};
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enum edge_mycapacity_t
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{
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edge_mycapacity
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};
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namespace boost
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{
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BOOST_INSTALL_PROPERTY(edge, myflow);
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BOOST_INSTALL_PROPERTY(edge, mycapacity);
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}
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template < class Graph > void print_network(const Graph& G)
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{
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typedef typename boost::graph_traits< Graph >::vertex_iterator Viter;
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typedef
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typename boost::graph_traits< Graph >::out_edge_iterator OutEdgeIter;
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typedef typename boost::graph_traits< Graph >::in_edge_iterator InEdgeIter;
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typename property_map< Graph, edge_mycapacity_t >::const_type capacity
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= get(edge_mycapacity, G);
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typename property_map< Graph, edge_myflow_t >::const_type flow
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= get(edge_myflow, G);
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Viter ui, uiend;
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boost::tie(ui, uiend) = vertices(G);
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for (; ui != uiend; ++ui)
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{
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OutEdgeIter out, out_end;
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cout << *ui << "\t";
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boost::tie(out, out_end) = out_edges(*ui, G);
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for (; out != out_end; ++out)
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cout << "--(" << capacity[*out] << ", " << flow[*out] << ")--> "
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<< target(*out, G) << "\t";
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InEdgeIter in, in_end;
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cout << endl << "\t";
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boost::tie(in, in_end) = in_edges(*ui, G);
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for (; in != in_end; ++in)
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cout << "<--(" << capacity[*in] << "," << flow[*in] << ")-- "
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<< source(*in, G) << "\t";
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cout << endl;
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}
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}
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int main(int, char*[])
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{
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typedef property< edge_mycapacity_t, int > Cap;
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typedef property< edge_myflow_t, int, Cap > Flow;
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typedef adjacency_list< vecS, vecS, bidirectionalS, no_property, Flow >
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Graph;
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const int num_vertices = 9;
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Graph G(num_vertices);
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/* 2<----5
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/ ^
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/ \
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V \
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0 ---->1---->3----->6--->8
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\ ^
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\ /
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V /
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4----->7
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*/
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add_edge(0, 1, Flow(10, Cap(8)), G);
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add_edge(1, 4, Flow(20, Cap(12)), G);
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add_edge(4, 7, Flow(20, Cap(12)), G);
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add_edge(7, 6, Flow(20, Cap(12)), G);
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add_edge(1, 3, Flow(40, Cap(12)), G);
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add_edge(3, 6, Flow(40, Cap(12)), G);
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add_edge(6, 5, Flow(20, Cap(16)), G);
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add_edge(5, 2, Flow(20, Cap(16)), G);
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add_edge(2, 1, Flow(20, Cap(16)), G);
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add_edge(6, 8, Flow(10, Cap(8)), G);
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print_network(G);
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property_map< Graph, edge_myflow_t >::type flow = get(edge_myflow, G);
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boost::graph_traits< Graph >::vertex_iterator v, v_end;
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boost::graph_traits< Graph >::out_edge_iterator e, e_end;
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int f = 0;
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for (boost::tie(v, v_end) = vertices(G); v != v_end; ++v)
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for (boost::tie(e, e_end) = out_edges(*v, G); e != e_end; ++e)
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flow[*e] = ++f;
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cout << endl << endl;
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remove_edge(6, 8, G);
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print_network(G);
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return 0;
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}
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