1 #include <iostream> |
|
2 #include <algorithm> |
|
3 #include <iterator> |
|
4 #include <functional> |
|
5 #include <lemon/list_graph.h> |
|
6 #include <lemon/map_iterator.h> |
|
7 #include <lemon/graph_reader.h> |
|
8 #include <lemon/maps.h> |
|
9 |
|
10 using namespace std; |
|
11 using namespace lemon; |
|
12 |
|
13 template <typename F, typename G> |
|
14 struct unary_compose { |
|
15 typedef typename G::argument_type argument_type; |
|
16 typedef typename F::result_type result_type; |
|
17 |
|
18 unary_compose(const F& _f, const G& _g) : f(_f), g(_g) {} |
|
19 |
|
20 result_type operator()(const argument_type& x) { |
|
21 return f(g(x)); |
|
22 } |
|
23 |
|
24 private: |
|
25 F f; |
|
26 G g; |
|
27 }; |
|
28 |
|
29 template <typename F, typename G> |
|
30 unary_compose<F, G> compose1(const F& f, const G& g) { |
|
31 return unary_compose<F, G>(f, g); |
|
32 } |
|
33 |
|
34 |
|
35 |
|
36 |
|
37 template <typename T> |
|
38 struct Second { |
|
39 typedef T argument_type; |
|
40 typedef typename T::second_type result_type; |
|
41 |
|
42 typename T::second_type operator()(const T& t) const { |
|
43 return t.second; |
|
44 } |
|
45 }; |
|
46 |
|
47 template <typename T> |
|
48 struct First { |
|
49 typedef T argument_type; |
|
50 typedef typename T::first_type result_type; |
|
51 typename T::first_type operator()(const T& t) const { |
|
52 return t.first; |
|
53 } |
|
54 }; |
|
55 |
|
56 |
|
57 int main() { |
|
58 |
|
59 typedef ListGraph Graph; |
|
60 |
|
61 typedef Graph::Edge Edge; |
|
62 typedef Graph::Node Node; |
|
63 typedef Graph::EdgeIt EdgeIt; |
|
64 typedef Graph::NodeIt NodeIt; |
|
65 typedef Graph::EdgeMap<int> LengthMap; |
|
66 |
|
67 typedef IdMap<Graph, Edge> EdgeIdMap; |
|
68 |
|
69 Graph graph; |
|
70 LengthMap length(graph); |
|
71 |
|
72 readGraph(std::cin, graph, length); |
|
73 |
|
74 const LengthMap& constLength = length; |
|
75 |
|
76 copy(length.valueSet().begin(), length.valueSet().end(), |
|
77 ostream_iterator<int>(cout, " ")); |
|
78 cout << endl; |
|
79 |
|
80 |
|
81 copy(constLength.valueSet().begin(), constLength.valueSet().end(), |
|
82 ostream_iterator<int>(cout, " ")); |
|
83 cout << endl; |
|
84 |
|
85 |
|
86 transform(constLength.keySet().begin(), constLength.keySet().end(), |
|
87 ostream_iterator<int>(cout, " "), |
|
88 MapFunctor<EdgeIdMap>(EdgeIdMap(graph))); |
|
89 cout << endl; |
|
90 |
|
91 |
|
92 transform(constLength.mapSet().begin(), constLength.mapSet().end(), |
|
93 ostream_iterator<int>(cout, " "), |
|
94 Second<LengthMap::MapSet::Value>()); |
|
95 cout << endl; |
|
96 |
|
97 transform(constLength.mapSet().begin(), constLength.mapSet().end(), |
|
98 ostream_iterator<int>(cout, " "), |
|
99 compose1(MapFunctor<EdgeIdMap>(EdgeIdMap(graph)), |
|
100 First<LengthMap::MapSet::Value>() )); |
|
101 cout << endl; |
|
102 |
|
103 transform(length.mapSet().begin(), length.mapSet().end(), |
|
104 ostream_iterator<int>(cout, " "), |
|
105 Second<LengthMap::MapSet::Value>()); |
|
106 cout << endl; |
|
107 |
|
108 transform(length.mapSet().begin(), length.mapSet().end(), |
|
109 ostream_iterator<int>(cout, " "), |
|
110 compose1(MapFunctor<EdgeIdMap>(EdgeIdMap(graph)), |
|
111 First<LengthMap::MapSet::Value>() )); |
|
112 cout << endl; |
|
113 |
|
114 return 0; |
|
115 } |
|