GATE | GATE CS 1999 | Question 45
The minimum number of record movements required to merge five files A (with 10 records), B (with 20 records), C (with 15 records), D (with 5 records) and E (with 25 records) is:
Explanation: Using optimal merge pattern algorithm arrange files in increasing order of records:
D A C B E 5 10 15 20 25
Attention reader! Don’t stop learning now. Practice GATE exam well before the actual exam with the subject-wise and overall quizzes available in GATE Test Series Course.
Learn all GATE CS concepts with Free Live Classes on our youtube channel.
Now, minimum number of record movements required = sum of internal node’s value = 15 + 30 + 45 + 75 = 165
So, option (A) is correct.
Quiz of this Question