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I wrote an algorithm in C++, but I'd like to know how to update an int type variable, for example:

int a = 100;
a = a - 50;

So that the next time the program is started the variable is no longer 100 but 50 and so on. First of all I would like to know if it can be done.

int a = 100;

a = a - 50;

//now it's no longer 100 but 50; at the restart of the program it will be 100 again and I don't want that.
NickD
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Federico Costa
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1 Answers1

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"So that the next time the program is started " - variables exist only in the running programs memory. They are not persistent between multiple runs of an application. If you want to persist/re-use data between runs, you have to save/load the data to/from a file or other persistent storage.

Jesper Juhl
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