#is there any way to check if a string is in any variable and print that variable?
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or change that variable?
int meow = 3;
int woof = 5
int nya = 2
cin >> rawr;
/* how would I know if rawr is equal to any of those variables to change them without writing 3 if statements? */
and change that variable
There is no automatic "give me a list of all variables" function in C++. You can make an std::vector<int *>, put all the ints in there and then search it. Or maybe std::map<std::string, int> would help your use-case.
Debuggers and such have some functions to search through the RAM, but unless you search for something longer and more unique than 3 you'll have a ton of hits in places you don't care about.