Depict what is left on stack s after the following series of push and pop operations (starting with the first column of operations and continuing with the second). Assume that the stack is initially empty.
push(s,10) | push(s,50) |
push(s,20) | push(s,60) |
push(s,40) | push(s,80) |
pop(s) | pop(s) |
pop(s) | pop(s) |
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