If you want to repeat an action until a condition is true, you probably want to use a loop structure. Since you don't know exactly how many times you're going to need to repeat in advance, I'd go with a while loop.
e.g.
while (temp is not within comfortable range)
--ask user for adjustment
--calculate temperature with adjustment
Seems like these should be reversed to output the request to the user to enter a temperature and then cin the response?
1 2
cin>> temp;
cout<< "enter a starting temp";
There's a typo here (] instead of =) and I don't see that the total variable has been defined anywhere. total ] (temp+adjust);