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  1. #include <cmath>
  2. #include <iostream>
  3. #include <vector>
  4.  
  5. static constexpr std::double_t PI     = std::acos(-1.0);
  6. static constexpr std::size_t   SIZE_X = 100;
  7. static constexpr std::size_t   SIZE_Y = 32;
  8. static constexpr std::double_t STEP   = 0.01;
  9. static constexpr std::double_t MAX    = PI*2.0;
  10.  
  11. int main()
  12. {
  13. 	std::cout << "Happy Mother's Day!\n";
  14.  
  15. 	bool grid[SIZE_X][SIZE_Y] {};
  16.  
  17. 	std::double_t xmin {}, xmax {}, ymin {}, ymax {};
  18.  
  19. 	using point_t = std::pair<std::double_t, std::double_t>;
  20. 	std::vector<point_t> points;
  21. 	points.reserve(static_cast<std::size_t>(MAX/STEP));
  22.  
  23. 	for(std::double_t t {}; t < MAX; t += STEP)
  24. 	{
  25. 		"http://mathworld"".""wolfram"".""com/HeartCurve.html";
  26. 		std::double_t x
  27. 			= 16.0 * std::pow(std::sin(t), 3);
  28. 		std::double_t y
  29. 			= 13.0 * std::cos(t)
  30. 			- 5.0  * std::cos(t * 2.0)
  31. 			- 2.0  * std::cos(t * 3.0)
  32. 			-        std::cos(t * 4.0);
  33.  
  34. 		xmin = std::fmin(xmin, x);
  35. 		xmax = std::fmax(xmax, x);
  36. 		ymin = std::fmin(ymin, y);
  37. 		ymax = std::fmax(ymax, y);
  38.  
  39. 		points.emplace_back(x, y);
  40. 	}
  41.  
  42. 	std::double_t const xscale = +(xmax - xmin);
  43. 	std::double_t const yscale = -(ymax - ymin);
  44.  
  45. 	for(auto const &p : points)
  46. 	{
  47. 		std::double_t x = ((p.first  - xmin) / xscale) * SIZE_X + 0.5;
  48. 		std::double_t y = ((p.second - ymax) / yscale) * SIZE_Y + 0.5;
  49.  
  50. 		if(x < 0.0)     x = 0.0;
  51. 		if(x >= SIZE_X) x = SIZE_X - 1;
  52. 		if(y < 0.0)     y = 0.0;
  53. 		if(y >= SIZE_Y) y = SIZE_Y - 1;
  54.  
  55. 		grid[static_cast<std::size_t>(x)][static_cast<std::size_t>(y)] = true;
  56. 	}
  57.  
  58. 	for(std::size_t y = 0; y < SIZE_Y; ++y)
  59. 	{
  60. 		for(std::size_t x = 0; x < SIZE_X; ++x)
  61. 		{
  62. 			std::cout << (grid[x][y]? '#' : '`');
  63. 		}
  64. 		std::cout << '\n';
  65. 	}
  66. }
  67.  
Success #stdin #stdout 0s 3460KB
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stdin
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Standard input is empty
stdout
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Happy Mother's Day!
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https://ideone.com/1EH5JZ
language:
C++14 (gcc 8.3)
created:
9 years ago
visibility:
public

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