I have many functions in my code like int main () and int chapter1 ()
But because I will take a long time for people to go though I want it to save where it got up to after every different chapter inside my code. I want to do this so when they re-open the console their previous location inside the code will be there for example if they got up to a function called chapter3 I want it so when the console re-opens it will load chapter3 and not int main () from the beginning.

Thank you so much for your help.