using C workin Linux Shell
Step1. Enter 'make' shell;
Step2. all Compile is done,Enter "./a.out '?'"; ? : 1 ~ 3 number
Step3. Round-Robin Scheduling running
Step4. if you want exit, exit the console or Ctrl + z;
all of test case 1,2,3 is in file, if you want check the print out, read code.