QuestionQuestion

Question 1
public abstract double foo();

Declaring an abstract function in a superclass requires that:

Question 1 options:
The function foo may not have a body in the superclass
You must declare the function foo in all subclasses
Each subclass must override the function foo
All the above
Question 3
What is the worst-case time complexity for the following code:

for (i = 0; i < n; i++) {
for (j = 0; j < n; j++) {
c[i][j] = 0;
for (k = 0; k < n; k++) {
c[i][j] += a[i][k]*b[k][j];
}
}
}

Question 3 options:
O(1) - Constant Time
O(Log N) - Logarithmic Time
O(N) - Linear Time
O(N²) - Quadratic Time
O(N³) - Cubic Time
O(2ᴺ) - Exponential Time
Question 4
The worst case time to search a regular Tree structure is

Question 4 options:
O(1)
O(log N)
O(N)
O(N²)
Question 5
The worst case time complexity to traverse a balanced Binary Tree is O(N)

Question 5 options:
True
False
hint for Question 5: The key word is "balanced" when doing a SEARCH operation.
Question 6
Which algorithm has the run time complexity O(Log N)?

Question 6 options:

Quick-find
Weighted quick-union
Quick-union

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Q1: Answer: All of the above...

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