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  1. #include <stdio.h>
  2. #include <math.h>
  3.  
  4. struct length{
  5. 	double a; 
  6. 	double b;
  7. 	double c;
  8. };
  9.  
  10. int main(void) {
  11. 	struct length x={5,5,5};
  12. 	double t=(x.a+x.b+x.c)/2;
  13.     double u=t*(t-x.a)*(t-x.b)*(t-x.c);
  14.     double s;
  15.     s = sqrt(u);
  16.     printf("s = %lf",s);
  17.  
  18.  
  19. 	return 0;
  20. }
  21.  
Success #stdin #stdout 0s 5268KB
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stdin
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3 3 3
stdout
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s = 10.825318
https://ideone.com/FJcFpO
language:
C (gcc 8.3)
created:
11 days ago
visibility:
public

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