posted 15 years ago
Here's your code cleaned up a little. You declare your cities variable inside the 'case 1' block. If your code goes directly into case 2, you've never initialized your variable, since you'd skip line 4. you can declare it outside the case statement entirely.. something like
You still may have problems, though, depending on the structure of the rest of your code.
There are only two hard things in computer science: cache invalidation, naming things, and off-by-one errors