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  1. #include <iostream>
  2. #include <vector>
  3. #include <map>
  4. class A {
  5.  
  6. public:
  7. void foo(std::string state, std::string action, double const& reward) {
  8.         if (heuristic.count(action)) {
  9.             updateCoefficients(state, heuristic[action], reward);
  10.         } else {
  11.             std::vector<std::vector<double>> coefs(20, std::vector<double>(2, 0.0));
  12.             heuristic[action] = coefs;
  13.     } 
  14. } 
  15. private:
  16.      virtual void updateCoefficients(std::string /*state*/, std::vector<std::vector<double>>& /*coefs*/,
  17.                                     double /*reward*/) {}
  18. public:
  19.      std::map<std::string, std::vector<std::vector<double>>> heuristic;
  20. };
  21.  
  22. class B : public A {
  23.      virtual void updateCoefficients(std::string state, std::vector<std::vector<double>>& coefs,
  24.                                    double reward) override;
  25. };
  26.  
  27. void B::updateCoefficients(std::string state, std::vector<std::vector<double>>& coefs,
  28.                                    double reward) {
  29.      for(unsigned i = 0; i < coefs.size(); i++) {
  30.          coefs[i][0] += 1;
  31.      }
  32.  
  33.      for(unsigned i = 0; i < coefs.size(); i++) {
  34.          coefs[i][1] += 2;
  35.      }
  36. }
  37.  
  38. using namespace std;
  39.  
  40. int main() {
  41.  
  42. 	A* instance = new B();
  43. 	instance->foo("aaa", "bbb", 123);
  44. 	cout << "First call" << endl;
  45.  
  46. 	for (auto h : instance->heuristic)
  47. 		for (auto b : h.second)
  48. 			for (auto c : b)
  49. 				cout << c << " ";
  50. 	cout << endl;				
  51. 	instance->foo("aaa", "bbb", 123);
  52. 	cout << "Updated" << endl;
  53.  
  54. 	for (auto h : instance->heuristic)
  55. 		for (auto b : h.second)
  56. 			for (auto c : b)
  57. 				cout << c << " ";
  58. 	cout << endl;				
  59. 	// your code goes here
  60. 	return 0;
  61. }
Success #stdin #stdout 0s 16072KB
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stdin
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Standard input is empty
stdout
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First call
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 
Updated
1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2
https://ideone.com/JDzRRr
language:
C++ (gcc 8.3)
created:
8 years ago
visibility:
public

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