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@@ -22,5 +22,5 @@ |
22 | 22 |
/// |
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/// This program gives an example of how to load a directed graph from |
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/// an \ref lgf-format "LGF" file with the \ref lemon::DigraphReader |
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/// |
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/// This program gives an example of how to read and write a digraph |
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/// and additional maps from/to a stream or a file using the |
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/// \ref lgf-format "LGF" format. |
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26 | 26 |
/// |
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@@ -29,3 +29,4 @@ |
29 | 29 |
/// |
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/// And the program which reads it |
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/// And the program which reads it and prints the digraph to the |
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/// standard output: |
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31 | 32 |
/// \include lgf_demo.cc |
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@@ -36,4 +37,2 @@ |
36 | 37 |
#include <lemon/lgf_writer.h> |
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#include <lemon/random.h> |
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39 | 38 |
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@@ -45,10 +44,15 @@ |
45 | 44 |
SmartDigraph::Node s, t; |
45 |
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try { |
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digraphReader("digraph.lgf", g). // read the directed graph into g |
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arcMap("capacity", cap). // read the 'capacity' arc map into cap |
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node("source", s). // read 'source' node to s |
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node("target", t). // read 'target' node to t |
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run(); |
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} catch (DataFormatError& error) { // check if there was any error |
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std::cerr << "Error: " << error.what() << std::endl; |
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return -1; |
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} |
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46 | 56 |
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digraphReader("digraph.lgf", g). // read the directeg graph into g |
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arcMap("capacity", cap). // read the 'capacity' arc map into cap |
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node("source", s). // read 'source' node to s |
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node("target", t). // read 'target' node to t |
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run(); |
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std::cout << " |
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std::cout << "A digraph is read from 'digraph.lgf'." << std::endl; |
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std::cout << "Number of nodes: " << countNodes(g) << std::endl; |
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