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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. void introduceMe(string name, string city, int age=0){
  5. cout<<"my name is "<< name<< "\n";
  6. cout<< "I am from " << city<<endl;
  7. if(age!=0)
  8. cout<<"I am "<<age<< " years old"<<endl;
  9.  
  10. }
  11.  
  12.  
  13. int main(){
  14. string name, city;
  15. int age;
  16. cout<<"name: ";
  17. cin>> name;
  18. cout<<"city: ";
  19. cin>>city;
  20. cout<<"age ";
  21. cin>>age;
  22. cout<<endl;
  23. introduceMe(name, city, age);
  24.  
  25. }
Success #stdin #stdout 0.01s 5324KB
stdin
Tom, London, 33
stdout
name: city: age 
my name is Tom,
I am from London,
I am 33 years old