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  1. #include <stdio.h>
  2. #include <math.h>
  3. struct data{
  4. 	double a;
  5. 	double b;
  6. 	double c;
  7. };
  8. int main(){
  9. 	struct data g;
  10. 	double s,S;
  11. 	scanf("%lf,%lf,%lf",&g.a,&g.b,&g.c);
  12. 	s=(g.a+g.b+g.c)/2;
  13. 	S=sqrt(s*(s-g.a)*(s-g.b)*(s-g.c));
  14. 	printf("a=%lf\nb=%lf\nc=%lf\n",g.a,g.b,g.c);
  15. 	printf("S=%lf",S);
  16.  
  17.  
  18. }
Success #stdin #stdout 0.01s 5320KB
comments (?)
stdin
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5,5,5
stdout
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a=5.000000
b=5.000000
c=5.000000
S=10.825318
https://ideone.com/DUJ8GL
language:
C (gcc 8.3)
created:
3 days ago
visibility:
public

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