how to make .exe file setup of our program

Answer 1

it's in your project folder after you compile the cpp file you will find the .exe file
if you are trying to make installer you can use various tools like I express
you can just make a code too that copies program

Answer 2

Swift code is compiled in xcode on Mac osx compatible environments. .exe files runs on Windows platform. So you don't need to create .exe on Mac osx environments. And with xcode you can't. If you want to run on Windows better using .net framework with c# language or cross platform environment like Java.