View Code of Problem 24

#include<stdio.h>
#include<math.h>
void main(){
int a,b,c;
double q,area;
  while((scanf("%d%d%d",&a,&b,&c)!=EOF)){
  q=(a+b+c)/2.0;
    area=sqrt(q*(q-a)*(q-b)*(q-c));
    printf("%.2lf",area);
  }

}