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  1. #include <iostream>
  2. #include <vector>
  3. #include <algorithm>
  4.  
  5. int main()
  6. {
  7. 	std::vector<std::vector<double>> vector1 = {{4,3,5,3}, 
  8.                                                 {2,6,3,7}, 
  9.                                                 {6,8,5,1}, 
  10.                                                 {5,6,1,5}};
  11.  
  12.     std::sort(vector1.begin(),
  13.               vector1.end(),
  14.               [] (const std::vector<double> &a, const std::vector<double> &b)
  15.               {
  16.                   return a[3] < b[3];
  17.               });
  18.  
  19.     for (auto &r : vector1)
  20.     {
  21.     	for (auto e : r)
  22.     		std::cout << e << " ";
  23.     	std::cout << std::endl;
  24.     }
  25.  
  26. 	return 0;
  27. }
Success #stdin #stdout 0s 16072KB
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stdin
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Standard input is empty
stdout
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6 8 5 1 
4 3 5 3 
5 6 1 5 
2 6 3 7
https://ideone.com/pqpz69
language:
C++ (gcc 8.3)
created:
7 years ago
visibility:
public

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