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  1. class X {
  2.     int x, y;
  3. public:
  4.     X(int x_, int y_) : x(x_), y(y_) {}
  5.  
  6.     friend X operator+(X const &a, X const &b) { 
  7.         return X(a.x+b.x, a.y+b.y);
  8.     }
  9. };
  10.  
  11.  
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https://ideone.com/A3zro
language:
C++ (gcc 8.3)
created:
11 years ago
visibility:
secret

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