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1. The five items: A,B,C,D and E are pushed in stack, one after the other starting from A. The stack is

Is popped four items and each element is inserted in a queue. Then two elements are deleted from the queue and pushed back on the stack . Now one item is popped from the stack.

The popped item is.

2. Convert the infix to postfix for A-(B+C)*(D/E)

3. What is the postfix form of the following prefix expression -A/B*C$DE

4. The minimum number of multiplications and additions required to evaluate the polynomial

P = 4x^3+3x^2-15x+45 is

5. The data structure required to evaluate a postfix expression is

6. The data structure required to check whether an expression contains balanced parenthesis is

7. The process of accessing data stored in a serial access memory is similar to manipulating data on a

8. The postfix form of the expression is (A+B) * (C*D-E)*F/G is

9. The pre-order and post order traversal of a Binary Tree generates the same output. The tree can have maximum

10. What data structure would you mostly likely see in a nonrecursive implementation of a recursive algorithm?