fork download 
  1. #include <iostream>
  2. #include <vector>
  3. #include <algorithm>
  4.  
  5. template <typename T>
  6. class Masker {
  7. private:
  8. 	template <typename V>
  9. 	struct Item {
  10. 		bool mask;
  11. 		V val;
  12. 	};
  13. 	std::vector<Item<T>> vec;
  14. public:
  15. 	Masker(std::vector<bool> mask, std::vector<T> vals) {
  16. 		for(size_t i = 0; i < vals.size(); i++) {
  17. 			vec.push_back({mask[i], vals[i]});
  18. 		}
  19. 	}
  20. 	const T& find_min() {
  21. 		return (*min_element(vec.begin(), vec.end(),
  22. 			[](const auto& lhs, const auto& rhs){ 
  23. 				if(!lhs.mask) { return false; }
  24. 				if(!rhs.mask) { return true; }
  25. 				return lhs.val < rhs.val;
  26. 			})).val;
  27. 	}
  28. };
  29.  
  30. int main() {
  31.  
  32. 	std::vector<bool> mask   = {0,   0,   1,   0,   1,   1,   0};
  33. 	std::vector<double> vec = {7.1, 1.0, 3.2, 2.0, 1.8, 5.0, 0.0};
  34.  
  35. 	std::cout << Masker<double>(mask, vec).find_min();
  36.  
  37. 	return 0;
  38. }
Success #stdin #stdout 0s 5516KB
comments (?)
stdin 
Standard input is empty
stdout 
1.8
https://ideone.com/G6ymGH
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!