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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. // pair<int, int> koordinat;
  5.  
  6. struct point {
  7. 	double x, y;
  8. 	// constructor
  9. 	point() {
  10. 		// cout << "Constructor kosong" << endl;
  11. 	}
  12. 	point(double _x, double _y) {
  13. 		// cout << "Constructor dgn 2 double" << endl;
  14. 		x = _x;
  15. 		y = _y;
  16. 	}
  17. 	double euclidean(point other) {
  18. 		return sqrt((x-other.x)*(x-other.x) + (y-other.y)*(y-other.y));
  19. 	}
  20. 	double manhattan(point other) {
  21. 		return abs(x-other.x) + abs(y-other.y);
  22. 	}
  23. };
  24.  
  25. struct line {
  26. 	double A, B, C;
  27.  
  28. 	line() {}
  29. 	line(double _A, double _B, double _C) {
  30. 		A = _A;
  31. 		B = _B;
  32. 		C = _C;
  33. 	}
  34. 	bool isVertical() {
  35. 		return B == 0;
  36. 	}
  37. 	double gradient() {
  38. 		if(isVertical())
  39. 			return 0;
  40. 		return -A/B;
  41. 	}
  42. 	double constant() {
  43. 		if(isVertical())
  44. 			return 0;
  45. 		return C/B;
  46. 	}
  47. 	double distanceFromPoint(point other) {
  48. 		return fabs((A*other.x+B*other.y-C)/sqrt(A*A+B*B));
  49. 	}
  50. };
  51.  
  52. struct segment {
  53. 	point A, B;	
  54. };
  55.  
  56. const double PI = acos(-1);
  57. // arccos = cos^-1
  58. // cos(x) = y --> acos(y) = x
  59. // trigonometri menggunakan radian
  60. // 180 derajat = PI radian
  61.  
  62. struct circle {
  63. 	point center;
  64. 	double radius;
  65. 	circle() {}
  66. 	circle(point _center, double _radius) {
  67. 		center = _center;
  68. 		radius = _radius;
  69. 	}
  70. 	double area() {
  71. 		return PI*radius*radius;
  72. 	}
  73. };
  74.  
  75. int main() {
  76. 	/*
  77. 	Materi Pembinaan Intensif 2 Mei 2024
  78. 	- Struct(ure)
  79. 	- Dasar2 Geometri
  80. 	  - Titik
  81. 	  - Garis
  82. 	  - Lingkaran
  83. 	*/
  84. 	point koordinat(-2, -3);
  85. 	cout << koordinat.x << " " << koordinat.y << endl;
  86. 	cout << koordinat.euclidean(point(6, 3)) << endl;
  87. 	cout << koordinat.manhattan(point(6, 3)) << endl;
  88.  
  89. 	line ver(1, 0, 3);
  90. 	cout << ver.distanceFromPoint(koordinat) << endl;
  91.  
  92. 	circle lingkaran(koordinat, 10);
  93. 	cout << setprecision(8);
  94. 	cout << lingkaran.area() << endl;
  95. 	return 0;
  96. }
Success #stdin #stdout 0s 5308KB
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-2 -3
10
14
5
314.15927
https://ideone.com/3MG3bb
language:
C++ (gcc 8.3)
created:
14 days ago
visibility:
public

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