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  1.  
  2. #include <iostream>
  3. using namespace std;
  4.  
  5. class Student {
  6. public:
  7.     void study() {
  8.         cout << "Student is studying\n";
  9.     }
  10. };
  11.  
  12. class Teacher {
  13. public:
  14.     void teach(Student& s) {
  15.         cout << "Teacher is teaching\n";
  16.         s.study();
  17.     }
  18. };
  19.  
  20. int main() {
  21.     Student s;
  22.     Teacher t;
  23.  
  24.     t.teach(s);
  25.  
  26.     return 0;
  27. }
  28.  
Success #stdin #stdout 0s 5320KB
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stdin
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Standard input is empty
stdout
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Teacher is teaching
Student is studying
https://ideone.com/5SRnUY
language:
C++14 (gcc 8.3)
created:
2 days ago
visibility:
public

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