View Code of Problem 24

#include<stdio.h>
#include<math.h>
int main(){
    int a,b,c;
    float s,p;
    while(scanf("%d%d%d",&a,&b,&c)!=EOF){
        p=(float)(a+b+c)/2;
        s=sqrt(p*(p-a)*(p-b)*(p-c));
        printf("%.2f\n",s);
    }
    return 0;
}