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yes, i think ur right, the program is reading as "number" to the actually number , ex 1,2,3,4. ok. heh damn something so simple couldn't even figure that out :)

thanks for ur help.

ok this is starting to get irrating. i have these as constansts:

// constants for under 50,000 miles;

const double Carbon_Monoxide = 3.4;
const double Hydro_Carbons =...

thanks

can i do something like this

if( pollutant < 3.4)
{ cout << " u passed " << endl;
}

else
{
cout << "u failed " << endl;
}