Which of the following is a valid way of creating a string within a Ruby statement?

A. Embed text within an opening %Q{ and } characters.
B. Embed text within a pair of double quotation marks.
C. Embed text within a pair of single quotation marks.
D. Both a and b.


Answer: D

Computer Science & Information Technology

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What is the output of the following code fragment?

int f1(int n, int m) { if(n < m) return 0; else if(n==m) return m+ f1(n-1,m); else return n+ f1(n-2,m-1); } int main() { cout << f1(5,4); return 0; } a. 0 b. 2 c. 4 d. 8 e. infinite recursion

Computer Science & Information Technology

______________ is a logical unit of the computer that coordinates the activities of all the other logical units.

Fill in the blank(s) with the appropriate word(s).

Computer Science & Information Technology

What line in the following algorithm is wrong?Algorithm searchBST (root, targetKey)1   if (empty tree)1.1      return null2   end if3   if (targetKey < root)3.1      return searchBST (left subtree, targetKey)4   else if (targetKey >= root)4.1      return searchBST (right subtree, targetKey)5   else5.1      return root6   end ifend searchBST

A. 3 B. 3.1 C. 4 D. 4.1

Computer Science & Information Technology

With Lab color, the ____ channel contains all of the lightness and darkness information for the image.

a. Luminosity c. B b. A d. Lightness

Computer Science & Information Technology