This is a pretty easy worst-case complexity question but i\'m having trouble gra

Question

This is a pretty easy worst-case complexity question but i'm having trouble grasping the subject.

This question deals with a function designed to multiply two matrices. It's not necessary that you remember how matrix multiplication is done. The structure of the algorithm should be understandable.

A. O(1) B. O(a.numCols) C. O(a.numRows) D. O(b.numCols) E. O(i*j)   F. O(j*k) G. O(j*a.numRows)

H. O(j*a.numCols)   I. O(a.numCols*a.numRows)   J. O(a.numCols*b.numCols)   K. O(a.numCols^2)

L. O(a.numCols*a.numRows*b.numCols)   M. O(a.numCols*a.numRows*b.numRows)

N. O(a.numCols*a.numRows*b.numCols*b.numRows)   O. none of the above

You can choose a letter for each of the following:

line 10:

line 9-10:

line 11:

lines 8-11:

lines 6-12:

lines 5-12:

line 4:

lines 4-13:

Explanation / Answer

line 10:B. O(1)

line 9-10:B O(a.numCols)

line 11:I. O(a.numCols*a.numRows)

lines 8-11: O(a.numCols*a.numRows)

lines 6-12:. O(a.numCols*b.numCols)

lines 5-12:L. O(a.numCols*a.numRows*b.numCols)  

line 4:J. O(a.numCols*b.numCols)

lines 4-13:L. O(a.numCols*a.numRows*b.numCols)  

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