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  1. #include <stdio.h>
  2. #include <math.h>
  3. typedef struct{
  4. 	double a;
  5. 	double b;
  6. 	double c;
  7. }list;
  8.   double area(list t);
  9. int main(void) {
  10. 	list me = {5,12,13};
  11. 	double s = area (me);
  12. 	printf("%f",s);
  13. 	return 0;
  14. }
  15. double area(list t){
  16. 	double r;
  17. 	r = (t.a + t.b + t.c )/2.0;
  18. 	return sqrt(r*(r-t.a)*(r-t.b)*(r-t.c));
  19. }
  20.  
  21.  
Success #stdin #stdout 0.01s 5324KB
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stdin
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Standard input is empty
stdout
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30.000000
https://ideone.com/1FHYss
language:
C99 (gcc 8.3)
created:
6 hours ago
visibility:
public

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