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QUESTION 1 A queue is a data structure in which the elements are _ _ _ _ . a . added to and deleted from

QUESTION 1
A queue is a data structure in which the elements are ____.
a.
added to and deleted from the front
b.
added to the rear and deleted from the front
c.
added to and deleted from the rear
d.
added and deleted in the middle
4 points
QUESTION 2
What is the output of the following code?
stackType stack;
int x, y;
x =5;
y =3;
stack.push(4);
stack.push(x);
stack.push(x +1);
y = stack.top();
stack.pop();
stack.push(x + y);
x = stack.top();
stack.pop();
cout <<"x ="<< x << endl;
cout <<"y ="<< y << endl;
a.
x =5
y =3
b.
x =11
y =6
c.
x =4
y =3
d.
x =5
y =6
4 points
QUESTION 3
In the linked implementation of stacks, the memory to store the stack elements is allocated statically.
True
False
4 points
QUESTION 4
Assume the key of the left child below the root node of a binary search tree is 30. The value in the root node could be ____.
a.
0
b.
10
c.
30
d.
40
4 points
QUESTION 5
The sequence of operations in a postorder traversal is ____.
a.
visit; traverse left; traverse right
b.
traverse left; traverse right; visit
c.
traverse left; visit; traverse right
d.
traverse left; traverse right

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Advances In Spatial And Temporal Databases 8th International Symposium Sstd 2003 Santorini Island Greece July 2003 Proceedings Lncs 2750

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