src/work/bin_heap_demo.cc
changeset 38 edea2e1dc6ef
child 39 28b0d751d29f
equal deleted inserted replaced
-1:000000000000 0:5a6df7255c14
       
     1 #include <iostream>
       
     2 #include <bin_heap.hh>
       
     3 #include <string>
       
     4 #include <map>
       
     5 
       
     6 using namespace marci;
       
     7 using namespace std;
       
     8 
       
     9 class string_int_map;
       
    10 
       
    11 typedef BinHeap<string, double, string_int_map> StrDoubleHeap;
       
    12 
       
    13 class string_int_map : public map<string,int> {
       
    14 public:
       
    15   int get(const string &s) {
       
    16     // Bocs, ez igy gaaaany, de nem volt kedvem utananezni, hogy
       
    17     // hogy is mukodik ez a map :)
       
    18     if( count(s) == 0 ) {
       
    19       operator[](s) = StrDoubleHeap::PRE_HEAP;
       
    20     }
       
    21     return operator[](s);
       
    22   }
       
    23   void put(const string &s, int i) {
       
    24       operator[](s) = i;
       
    25   }
       
    26 };
       
    27 
       
    28 
       
    29 int main()
       
    30 {
       
    31   string_int_map sim;
       
    32   
       
    33   
       
    34   cout << "testing string_int_map default value:\n";
       
    35   cout << "  alma: " << sim.get("alma") << endl;
       
    36 
       
    37   cout << "creating the heap\n";
       
    38   StrDoubleHeap heap(sim);
       
    39 
       
    40   cout << "heap.push(\"alma\", 15);\n";
       
    41   heap.push("alma", 15);
       
    42 
       
    43   cout << "heap.put(\"korte\", 3.4);\n";
       
    44   heap.put("korte", 3.4);
       
    45 
       
    46   cout << "heap.get(\"alma\") = " 
       
    47        << heap.get("alma")
       
    48        << endl;
       
    49 
       
    50   cout << "heap.top() = "
       
    51        << heap.top() << endl;
       
    52   cout << "heap.topValue() = "
       
    53        << heap.topValue() << endl;
       
    54 
       
    55   cout << "heap.decrease(\"alma\", 1.2);\n";
       
    56   heap.put("alma", 1.2);
       
    57 
       
    58   cout << "heap.top() = "
       
    59        << heap.top() << endl;
       
    60   cout << "heap.topValue() = "
       
    61        << heap.topValue() << endl;
       
    62 
       
    63   cout << "heap.put(\"alma\", 22);\n";
       
    64   heap.put("alma", 22);
       
    65 
       
    66   cout << "heap.top() = "
       
    67        << heap.top() << endl;
       
    68   cout << "heap.topValue() = "
       
    69        << heap.topValue() << endl;
       
    70 
       
    71   cout << "heap.size() = "
       
    72        << heap.size() << endl;
       
    73   cout << "heap.pop();\n";
       
    74   heap.pop();
       
    75 
       
    76   cout << "heap.top() = "
       
    77        << heap.top() << endl;
       
    78   cout << "heap.topValue() = "
       
    79        << heap.topValue() << endl;
       
    80 
       
    81   cout << "heap.size() = "
       
    82        << heap.size() << endl;
       
    83   cout << "heap.pop();\n";
       
    84   heap.pop();
       
    85 
       
    86   cout << "heap.size() = "
       
    87        << heap.size() << endl;  
       
    88   cout << "heap.empty() = "
       
    89        << (heap.empty()?"true":"false") << endl;  
       
    90 }
       
    91