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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. }side;
  9.  
  10. int main(void){
  11.  
  12.     double sum;
  13.  
  14. 	scanf("%lf",&side.a);
  15. 	scanf("%lf",&side.b);
  16. 	scanf("%lf",&side.c);
  17.  
  18.     sum=(side.a+side.b+side.c)/2.0;
  19.  
  20.     printf("a:%.lf\n",side.a);
  21.     printf("b:%.lf\n",side.b);
  22.     printf("c:%.lf\n",side.c);
  23.     printf("s = %lf",sqrt(sum*(sum-side.a)*(sum-side.b)*(sum-side.c)) );
  24.  
  25.     return 0;
  26. }
  27.  
Success #stdin #stdout 0s 5280KB
comments (?)
stdin
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3
4
5
stdout
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a:3
b:4
c:5
s = 6.000000
https://ideone.com/S0YCja
language:
C (gcc 8.3)
created:
11 days ago
visibility:
public

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