endl return 0 return 0 this test case only tests

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Unformatted text preview: values. If the function returns - 1, that would mean that the stack was empty and there was nothing to return. If you’ve done your push function correctly, there is very little for you to figure out as far as the pop function goes. Remember, the first step is to look for an excuse not to do anything. Once you’ve checked that the stack is not empty, then see which value you need to return. Think about this in terms of the size and capacity variable. However, before returning the function, be sure to update the size variable as well. The size of the stack changes, after all, when something is popped from it. Remember, the stack should not allow access to any random element inside it. Values should only be popped from the open end of the stack, and should only be pushed to the open end of the stack....
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