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  1. #include <iostream>
  2. #include <math.h>
  3. using namespace std;
  4.  
  5. class point
  6. {
  7. double x, y;
  8. public: point(double a, double b) { x = a; y = b; }
  9. friend double Distance(const point& p1, const point& p2);
  10. };
  11. double Distance(const point& p1, const point& p2)
  12. {
  13.     return sqrt((p1.x - p2.x) * (p1.x - p2.x) + (p1.y - p2.y) * (p1.y - p2.y));
  14. }
  15. int main()
  16. {
  17.     point p1(1,1), p2(2,2);
  18.     cout << Distance(p1, p2) << endl;
  19.     return 0;
  20. }
Success #stdin #stdout 0s 3412KB
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https://ideone.com/avCjiq
language:
C++ (gcc 8.3)
created:
7 years ago
visibility:
public

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