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1 total messages Started by Tim Boon Thu, 20 Nov 1997 00:00

#54

Author: Tim Boon
Date: Thu, 20 Nov 1997 00:00

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I have just done 17 questions on stacks and I can't do these three, there in
for the 21 November so could you please help me,
1)Given that an input stream ABCDE which of the following are possible
output streams?
a) ACEDB
b) BCEAD
c)CBAED
d)EACBD
for possible output streamsshow, using the instruction PUSH and POP, how
they can be obtained.
2)A stack is being implimented in an array of 10 elements.  Using pseudocode
algorithms show how a data element is:
i)added to the stack.
ii) removed from the stack
3) Explain how the elements is a non-empty queue may be reserved with the
aid of a stack.

Thankyou very much, please help and if you have email it back to me at
TimBoon@netcomuk.co.uk

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