Правильно ли написана программа - C (СИ)

#include <stdio.h>
#include <conio.h>
 
void main(void)
{                                 \\main' must return `int'      In function `int main(...)': 
float A,B,C;
 
printf ("\n\t Vvedite chisla cherez probel:");
scanf ("%d %d %d" ,&A,&B,&C);

printf("\n\t Dani chisla %d i %d i %d" ,A,B,C);
 
if(A/2+B/2+C/2 > 0)
    {
        if(A<B && A<C)
                      A=A*A;
        else 
              if(B<A && B<C) 
                       B=B*B;
              else
                   if(C<A && C<B) 
                        C=C*C;
    }  
else 
    {
        if(A<0) 
                A=A/2;
        else
        {       
           if(B<0) 
                 B=B/2;}
            else                               \\ expected primary-expression before "else"   expected `;' before "else" 
               { if(C<0)  
                C=C/2;}
 
    }
 
printf("\n\t Vivod chisel:%d %d %d,A,B,C);                 \\ missing terminating " character 
getch();                                          \\  expected `)' before ';' token 
 
}