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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. #define A "to"
  5. #define B "You"
  6. #define C "C"
  7. #ifdef __cplusplus
  8.     #define C "C++"
  9. #endif
  10. #define D "Dear"
  11. #define E "Happy"
  12. #define F "Birthday"
  13. #define H printf("%s %s %s %s \n",E,F,A,B)
  14.  
  15. int main(){H;H;printf("%s %s %s %s \n",E,F,D,C);H;return 0;}
Success #stdin #stdout 0s 15240KB
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stdin
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Standard input is empty
stdout
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Happy Birthday to You 
Happy Birthday to You 
Happy Birthday Dear C++ 
Happy Birthday to You
https://ideone.com/5qCEWm
language:
C++ (gcc 8.3)
created:
7 years ago
visibility:
public

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