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  1. #include "pch.h"
  2. #include <algorithm>
  3. #include <iostream>
  4.  
  5. using namespace std;
  6.  
  7. class Point //класс
  8. {
  9. private:
  10. 	double x; //поле
  11. 	double y;
  12.  
  13. public:
  14. 	void set_y(double yy)
  15. 	{
  16. 		y = yy;
  17. 	}
  18.  
  19. 	Point()
  20. 	{
  21. 	}
  22.  
  23. 	Point(double xx, double yy = 5) //конструктор
  24. 		: x(xx), y(yy)
  25. 	{
  26. 		if (x < 0)
  27. 			x = 0;
  28. 		if (y < 0)
  29. 			y = 0;
  30. 	}
  31.  
  32. 	double dist() //метод
  33. 	{
  34. 		return sqrt(x * x + y * y);
  35. 	}
  36.  
  37. 	double scl(Point other)
  38. 	{
  39. 		return x * other.x + y * other.y;
  40. 	}
  41.  
  42. 	void print()
  43. 	{
  44. 		cout << x << " " << y << endl;
  45. 	}
  46.  
  47. 	Point operator+(Point other) // Перегрузка оператора +
  48. 	{
  49. 		return Point(x + other.x, y + other.y);
  50. 	}
  51.  
  52. 	Point operator+(double other)
  53. 	{
  54. 		return Point(x + other, y + other);
  55. 	}
  56.  
  57. 	bool operator<(Point other) //this < other
  58. 								// Перегрузка оператора <
  59. 	{
  60. 		return x < other.x || (x == other.x && y < other.y);
  61. 	}
  62.  
  63. };
  64.  
  65. int main()
  66. {
  67. 	Point p1(4.2, 5.3); // экземпляр структуры (объект)
  68.  
  69. 	Point p2(12);
  70. 	p2.set_y(3.5);
  71.  
  72. 	Point p3 = p1 + p2;
  73. 	p3.print();
  74. 	Point p4 = p1 + 3.0;
  75. 	p4.print();
  76.  
  77. 	Point points[3];
  78. 	points[0] = Point(1, 3);
  79. 	points[1] = Point(5, 1);
  80. 	points[2] = Point(2, 5);
  81.  
  82. 	sort(points, points + 3); // Нужна перегрузка оператора <
  83. 	for (int i = 0; i < 3; i++)
  84. 		points[i].print();
  85. }
  86.  
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin
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Standard input is empty
compilation info 
prog.cpp:1:10: fatal error: pch.h: No such file or directory
 #include "pch.h"
          ^~~~~~~
compilation terminated.
stdout
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Standard output is empty
https://ideone.com/xM5H31
language:
C++ (gcc 8.3)
created:
6 years ago
visibility:
public

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