fork download
copy 
  1. #include <stdio.h>
  2. #include <math.h>
  3.  
  4. 	struct triangle{
  5. 		double a;
  6. 		double b;
  7. 		double c;
  8. 	};
  9.  
  10. 	int main(void) {
  11.  
  12. 		struct triangle t;
  13.  
  14. 		double p,s;
  15.  
  16. 		scanf("%lf",&t.a);
  17. 		scanf("%lf",&t.b);
  18. 		scanf("%lf",&t.c);
  19.  
  20. 		p=(t.a+t.b+t.c)/2.0;
  21.  
  22. 		s=sqrt(p*(p-t.a)*(p-t.b)*(p-t.c));
  23.  
  24. 		printf("辺a=%lf\n",t.a);
  25.         printf("辺b=%lf\n",t.b);
  26.         printf("辺c=%lf\n",t.c);
  27.         printf("三角形の面積 s=%.6f\n",s);
  28.  
  29. 	return 0;
  30. }
  31.  
Success #stdin #stdout 0.01s 5328KB
comments (?)
stdin
copy 
5 5 5
stdout
copy 
辺a=5.000000
辺b=5.000000
辺c=5.000000
三角形の面積 s=10.825318
https://ideone.com/Hs1kUg
language:
C (gcc 8.3)
created:
3 days ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!