[pull] master from TheAlgorithms:master #3
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Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com> Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com> 
* Replace bandit, flake8, isort, and pyupgrade with ruff * Comment on ruff rules * updating DIRECTORY.md --------- Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com> 
pull bot pushed a commit that referenced this pull request Jul 2, 2025
…hms#8870) * Fix insertion fail in ["*X", "*XX"] cases Consider a word, and a copy of that word, but with the last letter repeating twice. (e.g., ["ABC", "ABCC"]) When adding the second word's last letter, it only compares the previous word's prefix—the last letter of the word already in the Radix Tree: 'C'—and the letter to be added—the last letter of the word we're currently adding: 'C'. So it wrongly passes the "Case 1" check, marks the current node as a leaf node when it already was, then returns when there's still one more letter to add. The issue arises because `prefix` includes the letter of the node itself. (e.g., `nodes: {'C' : RadixNode()}, is_leaf: True, prefix: 'C'`) It can be easily fixed by simply adding the `is_leaf` check, asking if there are more letters to be added. - Test Case: `"A AA AAA AAAA"` - Fixed correct output: ``` Words: ['A', 'AA', 'AAA', 'AAAA'] Tree: - A (leaf) -- A (leaf) --- A (leaf) ---- A (leaf) ``` - Current incorrect output: ``` Words: ['A', 'AA', 'AAA', 'AAAA'] Tree: - A (leaf) -- AA (leaf) --- A (leaf) ``` *N.B.* This passed test cases for [Croatian Open Competition in Informatics 2012/2013 Contest #3 Task 5 HERKABE](https://hsin.hr/coci/archive/2012_2013/) * Add a doctest for previous fix * improve doctest readability
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