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  1.  #include <iostream>
  2.     using namespace std;
  3.  
  4.     class X {
  5.     public: 
  6.         int v;
  7.         void put(int x) { v = x; }
  8.         int get(void) { return v; }
  9.     };
  10.  
  11.     class Y : public X {
  12.     public:
  13.         Y() { put(0); }
  14.         void write(int x) { put(x + 1); }
  15.         int read(void) { return get() - 1; }
  16.  
  17.     };
  18.  
  19.     int main() {
  20.         Y *y = new Y();
  21.         y->write(1);
  22.         cout << y->read();
  23.         delete y;
  24.         return 0;
  25.     }
  26.  
  27.  
Success #stdin #stdout 0s 3468KB
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1
https://ideone.com/XmFNvd
language:
C++ (gcc 8.3)
created:
7 years ago
visibility:
public

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