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  1. #include <iostream>
  2. #include <cstdint>
  3. #include <vector>
  4. #include <random>
  5.  
  6. typedef std::vector<std::int64_t> DType;
  7.  
  8. DType MakeVector(const std::size_t& N, const unsigned int& S = 0) {
  9. 	std::int64_t Range = 16;
  10. 	std::mt19937 mt(S);
  11. 	std::uniform_int_distribution<std::int64_t> ui(-Range, Range);
  12.  
  13. 	DType D;
  14.  
  15. 	for (std::size_t i = 0; i < N; i++) {
  16. 		D.push_back(ui(mt));
  17. 	}
  18.  
  19. 	return D;
  20. }
  21.  
  22. DType MakeHoge(const DType& D) {
  23. 	DType R;
  24.  
  25. 	for (std::size_t i = 0; i < D.size() - 1; i++) {
  26. 		R.push_back(D[i] - D[i + 1]);
  27. 	}
  28.  
  29. 	return R;
  30.  
  31. }
  32.  
  33. bool Show(const DType& D, const DType& R) {
  34.  
  35. 	for (auto& o : D) {
  36. 		std::cout << o << ',';
  37. 	}
  38. 	std::cout << std::endl;
  39. 	std::cout << std::endl;
  40. 	for (auto& o : R) {
  41. 		std::cout << o*-1 << ',';
  42. 	}
  43. 	std::cout << std::endl;
  44.  
  45. 	return true;
  46. }
  47.  
  48. int main() {
  49. 	DType D;
  50. 	DType R;
  51. 	std::size_t L = 16;
  52. 	D = MakeVector(L);
  53.  
  54. 	R = MakeHoge(D);
  55.  
  56. 	Show(D, R);
  57.  
  58. 	return 0;
  59.  
  60. }
  61.  
Success #stdin #stdout 0s 4396KB
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stdin
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Standard input is empty
stdout
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2,3,7,11,3,12,1,11,-3,4,5,-4,-2,-7,13,-15,

1,4,4,-8,9,-11,10,-14,7,1,-9,2,-5,20,-28,
https://ideone.com/AoQVOB
language:
C++14 (gcc 8.3)
created:
5 years ago
visibility:
public

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