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  1. #include <stdio.h>
  2. #include <math.h>
  3. struct hen{
  4. 	double a;
  5. 	double b;
  6. 	double c;
  7. };
  8. int main(void){
  9. 	double p;
  10. 	double s;
  11. 	struct hen x;
  12.     scanf("%lf",&x.a);
  13.     scanf("%lf",&x.b);
  14.     scanf("%lf",&x.c);
  15.     p=(x.a+x.b+x.c)/2;
  16.     printf("a:%f\n",x.a);
  17.     printf("b:%f\n",x.a);
  18.     printf("c:%f\n",x.b);
  19.     printf("p:%f\n",p);
  20.     s = sqrt(p*(p-x.a)*(p-x.b)*(p-x.c));
  21.     printf("s = %lf", s);
  22.  
  23.     return 0;
  24. }
  25.  
  26.  
  27.  
  28.  
  29.  
Success #stdin #stdout 0.01s 5280KB
comments (?)
stdin
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5 5 5
stdout
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a:5.000000
b:5.000000
c:5.000000
p:7.500000
s = 10.825318
https://ideone.com/Pa98M0
language:
C99 (gcc 8.3)
created:
3 days ago
visibility:
public

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