This is a basic question. I have downloaded the file from CMS open source website(HEPTutorial file) and I want to select at least two muon from the file.
I have written the code. Although when I run the file it does not have any error, but it does not work.would you please tell me what I should do?
ROOT Version: 6.22/06
Platform: Ubuntu 20.04.2
Compiler: Terminal of the linux