Yes... You can bring as many pack as you wish as long as that is within the limit of the country you are traveling to... And 2~3 pack shouldnt be a problem at all...
And currently, there are 7 smoking room facilities located in the departure level all inside the restricted area after immgration and security... And the location are evenly spread across the terminal building...
I would also suggest you to leave your cigerates in your hand carry bag not in your pocket as you get onboard...