Skip to content
Related Articles

Related Articles

GATE | GATE CS 1999 | Question 14
  • Last Updated : 12 Sep, 2018

If one uses straight two-way merge sort algorithm to sort the following elements in ascending order 20, 47, 15, 8, 9, 4, 40, 30, 12, 17
then the order of these elements after the second pass of the algorithm is:
(A) 8, 9, 15, 20, 47, 4, 12, 17, 30, 40
(B) 8, 15, 20, 47, 4, 9, 30, 40, 12, 17
(C) 15, 20, 47, 4, 8, 9, 12, 30, 40, 17
(D) 4, 8, 9, 15, 20, 47, 12, 17, 30, 40


Answer: (B)

Explanation: In first pass the elements are sorted in n/4 (first 2 elements in each group) sub arrays but in second pass the elements are sorted in n/2 (first 4 elements in each group) sub arrays.

Quiz of this Question

sudo-gate-course

My Personal Notes arrow_drop_up
Recommended Articles
Page :