a stack question
 

we had this problem given to us, and i would just like a confirmation as to who is correct on the answer

the stacks S and T are initially empty and we need to say what they would "look like" after these operations

S.push(1)
S.push(2)
T.push(3)
T.push(4)
S.pop
T.GetStackTop(StackTop)
S.push(StackTop)
S.push(5)
T.pop(StackTop)
T.push(6)

I came up with S containing (from bottom to top) 1,4,5
and T containing 3,6

but a friend had only 6 left in T

could someone please specify which is the right solution?

You'll have to explain what GetStackTop does in terms of its effect on the contents. If it merely returns the value, without removing it (which seems likely), then just make a table. The operation, T.pop(StackTop), seems ridiculous. How can you specify some parameter to pop? One pops the top. If it's specifiying a destination in which to place the popped value, it's useless, as you don't subsequently use it.

In other words, a question without the necessary supportive information isn't likely to result in a good answer, except by accident.

Agree with DaWei on this. Provide more information and then you'll get something good! I do not know what StackTop is.

Are we really talking about stacks here???