#include <stdio.h> #include <math.h> #define S(a,b,c) (a + b + c) / 2 int main() { int a, b, c; float x, s; scanf("%d %d %d", &a, &b, &c); x = (float)S(a,b,c); s = sqrt(x * (x - a) * (x - b) * (x - c)); printf("%.2f\n",s); return 0; } |
Double click to view unformatted code.