Fix error in LR row linking #4
Open
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Incorrect usage of prev made all row L (and possibly R) pointers point to header
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Incorrect usage of prev made the rows linked lists be incorrectly ordered, while maintaining functionality.
More specifically, rather than the nodes of a particular row be ordered
1 <-> 2 <-> ... <-> N <-> back to 1
They are ordered
1 <-> N <-> ... <-> 2 <-> back to 1
due to this mistake.
This does not affect the execution of the algorithm, as any time we use rows' L-R pointers, we traverse the whole list, and the list still is correctly linking all the nodes.