#include "stdio.h" #include "math.h" void main() { int a, b, c ; double p,m; while (scanf("%d %d %d",&a,&b,&c)!=EOF) { if ((a+b>c||b+c>a||a+c>b)&&a>0&&b>0&&c>0) { p=(a+b+c)/2; m=sqrt(p*(p-a)*(p-b)*(p-c)); printf("%.2f\n", m); } } } |
Double click to view unformatted code.