Start with an empty result list. For every item in List 1, check whether it appears in List 2. If it is missing from List 2, append that item into your result list and report it.
Ganita Manjari part 2 Chapter 11.2 Solutions
Class 9 Ganita Manjari Part 2 Chapter 11 Page 43 Question Answer
Check if x is present in List 2.
If x is not present in List 2, add x to unique-to-List1.
(Since both lists are sorted, you can stop checking List 2 as soon as an element exceeds x.)
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