#include<stdio.h>
#include<stdio.h>
#include<math.h>


 main() 
   { 
   int num; 
   printf("Insira um numero: "); 
   scanf("%d", &num); 
   if(num %2 == 0)                     
   { 
   printf ( " O numero %d e Par ", num); 
   } 
   else 
   { 
   printf ( " O numero %d e Impar ", num); 
    } 
   getch(); 

    } 

Line 6: error: ISO C++ forbids declaration of 'main' with no type
compilation terminated due to -Wfatal-errors.