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  1. #include <vector>
  2. #include <iostream>
  3. #include <algorithm>
  4. #include <iterator>
  5.  
  6. template <typename Containers>
  7. 	std::vector<typename Containers::value_type::value_type>
  8.          reduce_minelement(const Containers& containers)
  9. {
  10. 	std::vector<typename Containers::value_type::value_type> result;
  11. 	result.reserve(containers.size()); // pre-allocate
  12.  
  13. 	for (auto it=containers.begin(); it!=containers.end(); ++it)
  14. 		result.push_back(*std::max_element(it->begin(), it->end()));
  15.  
  16. 	return result;
  17. }
  18.  
  19. static const std::vector<std::vector<int> > data = { 
  20. 	   { 52,    1, 93, 74 },
  21. 	    { 2,   18, 67, 77 },
  22. 	   { 85,   35, -4     },
  23. 	   { 48 },
  24. 	   { 68,   18, 91,  0 },
  25. };
  26.  
  27. int main()
  28. {
  29. 	auto reduced = reduce_minelement(data);
  30. 	std::copy(reduced.begin(), reduced.end(), std::ostream_iterator<int>(std::cout, ", "));
  31.  
  32. 	return 0;
  33. }
  34.  
  35.  
  36.  
Success #stdin #stdout 0s 2964KB
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stdin
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Standard input is empty
stdout
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93, 77, 85, 48, 91,
https://ideone.com/xevL0
language:
C++14 (gcc 8.3)
created:
13 years ago
visibility:
public

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