If you need to determine minimum and maximum in C++ from a certain value or variable then you can try it

int max = max({a,b,c});
int min = min({a,b,c});
or
int max = max({n1,n2,n3,n4....nn});
int min = min({n1,n2,n3,n4....nn});

where a,b,c and n1,n2,n3...nn are variables or values