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  1. #include <stdio.h>
  2. #include <math.h>
  3.  
  4. struct{
  5. 	double a;
  6. 	double b;
  7. 	double c;
  8. }data;
  9.  
  10. int main(void) {
  11. 	scanf("%lf\n",&data.a);
  12. 	scanf("%lf\n",&data.b);
  13. 	scanf("%lf\n",&data.c);
  14.  
  15. 	double p=(data.a+data.b+data.c)/2;
  16.     double s=sqrt(p*(p-data.a)*(p-data.b)*(p-data.c));
  17.  
  18. 	printf("a=%lf,b=%lf,c=%lf",data.a,data.b,data.c);
  19. 	printf("\ns=%lf",s);
  20. 	return 0;
  21. }
  22.  
Success #stdin #stdout 0.01s 5280KB
comments (?)
stdin 
5
5
5
stdout 
a=5.000000,b=5.000000,c=5.000000
s=10.825318
https://ideone.com/bNbqgu
language:
C (gcc 8.3)
created:
11 days ago
visibility:
public

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