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  1. #include <iostream>
  2. #include <vector>
  3. using namespace std;
  4.     class C
  5.     {
  6.     public:
  7.         C(const std::vector<double>& a_, const std::vector<double>& b_)
  8.             :a(a_),b(b_){};
  9.         double operator()(size_t i, size_t j) const { return a[i]*b[j]; }
  10.     private:
  11.          std::vector<double> a, b;
  12.     };
  13.  
  14. int main() {
  15. 	C c({1,2,3,4},{10,20,30,40});
  16. 	cout << "3*30 "<<c(2,2);
  17. 	// your code goes here
  18. 	return 0;
  19. }
Success #stdin #stdout 0s 3456KB
comments (?)
stdin 
Standard input is empty
stdout 
3*30 90
https://ideone.com/bZR7AU
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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