-
-
Notifications
You must be signed in to change notification settings - Fork 46.8k
Add Max Fenwick Tree #6298
New issue
Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.
By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.
Already on GitHub? Sign in to your account
Add Max Fenwick Tree #6298
Conversation
There was a problem hiding this comment.
Choose a reason for hiding this comment
The reason will be displayed to describe this comment to others. Learn more.
Click here to look at the relevant links ⬇️
🔗 Relevant Links
Repository:
Python:
Automated review generated by algorithms-keeper. If there's any problem regarding this review, please open an issue about it.
algorithms-keeper
commands and options
algorithms-keeper actions can be triggered by commenting on this PR:
@algorithms-keeper review
to trigger the checks for only added pull request files@algorithms-keeper review-all
to trigger the checks for all the pull request files, including the modified files. As we cannot post review comments on lines not part of the diff, this command will post all the messages in one comment.NOTE: Commands are in beta and so this feature is restricted only to a member or owner of the organization.
There was a problem hiding this comment.
Choose a reason for hiding this comment
The reason will be displayed to describe this comment to others. Learn more.
Click here to look at the relevant links ⬇️
🔗 Relevant Links
Repository:
Python:
Automated review generated by algorithms-keeper. If there's any problem regarding this review, please open an issue about it.
algorithms-keeper
commands and options
algorithms-keeper actions can be triggered by commenting on this PR:
@algorithms-keeper review
to trigger the checks for only added pull request files@algorithms-keeper review-all
to trigger the checks for all the pull request files, including the modified files. As we cannot post review comments on lines not part of the diff, this command will post all the messages in one comment.NOTE: Commands are in beta and so this feature is restricted only to a member or owner of the organization.
…ck-tree # Conflicts: # data_structures/binary_tree/maximum_fenwick_tree_one_based_indexig.py
@cclauss Let me now if these changes solves the issues that you commented. |
Why is one-based indexing an advantage in a language that uses zero-based indexing? |
The one-based indexing is default for any Fenwick Tree. In all languages we use one-based indexing because of the main theory idea behind Fenwick tree that is Even in the previous implementation of Fenwick Tree in this repository (here), we had to used one-based by default. But there is another tricky way to solve the one-based indexing issue as Wikipedia has used too. I can add the zero-based indexing too if you want. |
@cclauss, I changed the tree into 0-based indexing. |
There was a problem hiding this comment.
Choose a reason for hiding this comment
The reason will be displayed to describe this comment to others. Learn more.
Thanks for doing this!
Describe your change:
I created MaxFenwickTreeOneBasedIndexing wich solves this problem:
This algorithm use classic fenwick tree with some changes in key ideas.
Checklist:
Fixes: #{$ISSUE_NO}
.