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  1. #include <iostream>
  2. #include <vector>
  3. #include <cstdint>
  4. #include <algorithm>
  5. #include <random>
  6.  
  7. typedef std::vector<std::intmax_t> DType;
  8.  
  9. DType MakeVector(std::size_t N) {
  10. 	DType R;
  11. 	for (std::size_t i = 0; i < N; i++) {
  12. 		R.push_back(i);
  13. 	}
  14. 	return R;
  15. }
  16. /** /
  17. DType MakeHoge(const DType& D) {
  18.  
  19. 	DType Idx =MakeVector(D.size());
  20.  
  21. 	for (std::size_t i = 0; i < D.size()-1; i++) {
  22. 		for (std::size_t j = i+1; j < D.size(); j++) {
  23. 			if (D[Idx[i]] > D[Idx[j]]) {
  24. 				std::swap(Idx[i], Idx[j]);
  25. 			}
  26. 		}
  27. 	}
  28.  
  29. 	return Idx;
  30. }
  31. /**/
  32. DType MakeHoge(const DType& D) {
  33.  
  34. 	DType Idx =MakeVector(D.size());
  35.  
  36. 	std::sort(Idx.begin(), Idx.end(), [&](auto& A, auto& B) {return D[A] < D[B]; });
  37.  
  38. 	return Idx;
  39. }
  40. int main() {
  41. 	DType D = MakeVector(16);
  42. 	std::minstd_rand mr;
  43.  
  44. 	std::shuffle(D.begin(), D.end(),mr);
  45.  
  46. 	DType Idx = MakeHoge(D);
  47.  
  48. 	for (std::size_t i = 0; i < D.size(); i++) {
  49. 		std::cout << D[i] << ',';
  50. 	}
  51. 	std::cout << std::endl;
  52. 	for (std::size_t i = 0; i < Idx.size(); i++) {
  53. 		std::cout << Idx[i] << ',';
  54. 	}
  55. 	std::cout << std::endl;
  56. 	for (std::size_t i = 0; i < D.size(); i++) {
  57. 		std::cout << D[Idx[i]] << ',';
  58. 	}
  59. 	std::cout << std::endl;
  60.  
  61. 	return 0;
  62.  
  63. }
Success #stdin #stdout 0s 4480KB
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stdin
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Standard input is empty
stdout
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5,11,10,4,0,14,12,9,8,13,1,7,6,3,2,15,
4,10,14,13,3,0,12,11,8,7,2,1,6,9,5,15,
0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,
https://ideone.com/4S932i
language:
C++14 (gcc 8.3)
created:
5 years ago
visibility:
public

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