Add Dutch National Flag Algorithm for Sorting Arrays of 0s, 1s, and 2s #13094
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| def dutch_national_flag(arr): | |||
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Please provide return type hint for the function: dutch_national_flag. If the function does not return a value, please provide the type hint as: def function() -> None:
Please provide type hint for the parameter: arr
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…Python_ho into dutch_national_flag
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| def dutch_national_flag(arr: list[int]) -> list[int]: | |||
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As there is no test file in this pull request nor any test function or class in the file data_structures/arrays/dutch_national_flag.py, please provide doctest for the function dutch_national_flag
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@darkstar @bit-man @spazm @horstjens sir please review this request and i want to contribute further |
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@darkstar @bit-man @spazm @horstjens sir please review this request and i want to contribute furthe |
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Describe your change:
This PR introduces the Dutch National Flag algorithm, which efficiently sorts arrays containing only 0s, 1s, and 2s in a single pass. The implementation uses three pointers to partition the array, achieving O(n) time and O(1) space complexity. This algorithm is useful for problems involving categorical partitioning and enhances the array utilities in the project. Example usage and a clear docstring are included for reference.
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