//if with a boolean
#include <iostream>
using namespace std;
int main()
{
   int temp;
   bool pleasant;
   cout << "What is the temperature? "; 
   cin  >> temp;
   pleasant = ( ??? );
   if (pleasant)
      cout << "Pleasant weather!\n;
   else
      cout << "Not.\n";

   system("pause");
   return 0;
}