fork download
copy 
  1. #include <stdio.h>
  2. #include <math.h>
  3.  
  4. struct student{
  5. 	double a;
  6.     double b;
  7.     double c;
  8. }d;
  9.  
  10. int main(void) {
  11.     scanf("%lf", &d.a);
  12.     scanf("%lf", &d.b);
  13.     scanf("%lf", &d.c);
  14. 	double k;
  15.  
  16. 	double m=(d.a+d.b+d.c)/2;
  17. 	k=sqrt(m*(m-d.a)*(m-d.b)*(m-d.c));
  18.  
  19.         printf("\na: %.2lf\n", d.a);
  20.         printf("b: %.2lf\n", d.b);
  21.         printf("c: %.2lf\n", d.c);
  22.         printf("三角形の面積: %.6lf\n",k);
  23.     return 0;
  24. }
Success #stdin #stdout 0s 5292KB
comments (?)
stdin
copy 
5
5
5
stdout
copy 
a: 5.00
b: 5.00
c: 5.00
三角形の面積: 10.825318
https://ideone.com/8qWjsW
language:
C (gcc 8.3)
created:
11 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!