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  1. #include <iostream>
  2. #include <vector>
  3. #include <cmath>
  4. using namespace std;
  5. struct	point2D
  6. {
  7. 	int x;
  8. 	int y;
  9. };
  10. float	max(float a, float b)
  11. {
  12. 	if (a>b)
  13. 		return a;
  14. 	else 
  15. 		return b;
  16. }
  17. void	inputPoint(vector<point2D> point)
  18. {
  19. 	int i;
  20. 	int n;
  21. 	point2D temp;
  22. 	cout << "Hay nhap so diem: ";
  23. 	cin >> n;
  24. 	point.resize(n);
  25. 	for (i=1;i<=(n);i++)
  26. 	{
  27. 		cout << "Hay nhap diem thu " << i << endl ;
  28. 		cin >> temp.x >> temp.y;
  29. 		point.push_back(point2D());  //emplace_back()
  30. 		point[i-1].x=temp.x;
  31. 		point[i-1].y=temp.y;
  32. 	}
  33. 	cout << "Complete";
  34. }
  35. float	distance(point2D pt1, point2D pt2)
  36. {
  37. 	return sqrt(pow(double(pt1.x-pt2.x),2)+pow(double(pt1.y-pt2.y),2));
  38. }
  39. float	findDis(vector<point2D> point)
  40. {
  41. 	int size=point.size();
  42. 	float maximum=0;
  43. 	int i,j;
  44. 	for (i=0;i<size;i++)
  45. 		for (j=0;j<size;i++)
  46. 			maximum=max(maximum,distance(point[i],point[j]));
  47. 	return	maximum;
  48. }
  49.  
  50. int main()
  51. {
  52. 	vector<point2D> point;
  53. 	int n;
  54. 	inputPoint(point);
  55. 	cout << "Khoang cach lon nhat la: " << findDis(point);
  56. 	getchar();
  57. 	getchar();
  58. 	return 0;
  59. }
Success #stdin #stdout 0s 3236KB
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stdin
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2 1 2 3 4
stdout
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Hay nhap so diem: Hay nhap diem thu 1
Hay nhap diem thu 2
CompleteKhoang cach lon nhat la: 0
https://ideone.com/tEqDYp
language:
C++14 (gcc 8.3)
created:
11 years ago
visibility:
public

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