# Number of Comparisons (I)

How may comparisons are done in the following algorithm?

  1 2 3 4 5 6 7 8 9 10 11 12  // Start here a := 0 for i := 1 to n for j := i to 1 if j mod i := 0 a := a+1 j := j-1 i := i+1 return a // Stop here 

×