FIRST & FOLLOW

Question

I have made a program to compute FIRST & FOLLOW(Compiler Design) of given production rules. I am facing few problems, I am getting SIGSEV error while I am compiling the code in an online ide - jdoodle (I am quite lucky that I am not getting this error on SoloLearn ide) and if I comment or remove line number 154 then the program is not running on codeblocks, I literally have no idea why this is happening how can the absence of cout at that point is changing the working of the program. Any advice on how I can fix these errors?
P. S. : Any kind of advice/review about the code is appreciated. Thank you!
Code: https://code.sololearn.com/cGmNIfA0tR65/?ref=app

Answer 1

I can't comment when I haven't seen the result. But I tried in jdoodle and there no option to paste your code!

Answer 2

Here is another good online C++ IDE and compiler that uses an interactive console for input. That might be helpful. Not sure what a first and follow is, so can’t be much help with that.
https://www.onlinegdb.com/online_c++_compiler

Answer 3

l undersand what is C++

Answer 4

C++ =C# ???

Answer 5

Thanks,I'm justa deginner.

Answer 6

Wath C++.