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  1. #include <stdio.h>
  2. #include <math.h>
  3.  
  4. struct Triangle{
  5. 	double a;
  6. 	double b;
  7. 	double c;
  8. } triangle={5,5,5};
  9.  
  10. int main(void){
  11. 	double s,S;
  12. 	s=(triangle.a+triangle.b+triangle.c)/2;
  13.     S= sqrt(s*(s-triangle.a)*(s-triangle.b)*(s-triangle.c));
  14.     printf("S= %lf", S);
  15.  
  16.     return 0;
  17. }
  18.  
Success #stdin #stdout 0s 5276KB
comments (?)
stdin 
Standard input is empty
stdout 
S= 10.825318
https://ideone.com/NdWe70
language:
C99 (gcc 8.3)
created:
11 days ago
visibility:
public

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