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Learning Opportunities
This puzzle can be solved using the following concepts. Practice using these concepts and improve your skills.
Statement
Goal
You are responsible for the making of a comments system for a newly made videos app. There is one problem, what's the point if comments are randomly shown? And here comes your job, you need to design a priority system for comments.There are n comments given to you in random order. Each comment contains comment data (name, date, likes, priority) separated by a
You need to sort the comments in a way such that:
- Pinned comment appears first, there is only one of such comment, and its priority is
- Followed people's comments appear second, and their priority is
- Comments with most likes appear third, regardless of their date, they have priority
- Newer comments appear fourth, they have priority
- in a case of more than 1 followed accounts, they would be ordered by their likes and date as said.
- in case of a tie between two users, the one given in input first is outputted first, e.g. user1 is given before user2, so you output user1 then user2.
Comments may contain replies, A reply starts with 4 spaces, and is under the comment it belongs to.
The replies of a comment are also sorted based on the above said priorities, there will not be a pinned reply.
Input
Line 1: An integer n for the amount of comments
Next n lines: A comment, split by a vertical bar (| ): name, date, likes, priority
Next n lines: A comment, split by a vertical bar (
Output
The comments after being sorted
Constraints
2 ≤ n ≤ 13
There will not be nested replies, i.e. a reply to another reply
Names will only consist ofuser and a number, and are not necessarily in order
There will not be nested replies, i.e. a reply to another reply
Names will only consist of
Example
Input
3 user1|05:34|0|none user2|05:36|0|none user3|05:35|0|none
Output
user2|05:36|0|none user3|05:35|0|none user1|05:34|0|none
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