#include<stdio.h>
#include<conio.h>
#include<math.h>
float obh(struct geron *S);
struct geron
{int a,b,c;
float p;};
void main()
{
struct geron S1,S2={2,3,4};
clrscr();
puts("vvedit storoni dlya S1:\n");
scanf("%i%i%i",&S1.a,&S1.b,&S1.c);
printf("plowa trikytnika za formuloiu gerona dlya S1...