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  1. class A {
  2. public:
  3. virtual void print() = 0;
  4. };
  5.  
  6. class B : public A{
  7. public:
  8. void print();
  9. };
  10.  
  11. int main()
  12. {
  13. B b;
  14. }
Success #stdin #stdout 0s 2848KB
stdin
Standard input is empty
stdout
Standard output is empty