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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. int main() {
  5. #define PI 3.14
  6. #define CIRCLE_AREA(x) ((PI/4) * (x*(x))
  7.  
  8.  
  9.     int x = 4;
  10.     printf("%f", CIRCLE_AREA(x)));
  11. 	return 0;
  12. }
Success #stdin #stdout 0.01s 5304KB
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Standard input is empty
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12.560000
https://ideone.com/o4bT9m
language:
C++ (gcc 8.3)
created:
13 days ago
visibility:
public

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