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2138. Divide a String Into Groups of Size k
- The article explains how to divide a string into groups of size k, with the possibility of using a fill character for padding.
- The approach involves iterating through the string, extracting segments of size k and padding the last segment if needed.
- The algorithm calculates the length of the string and processes each segment starting from index 0.
- For each segment, a substring of length k is extracted and padded with the fill character if necessary to meet the required size.
- The time complexity is O(n) as each character is processed once, while the space complexity is O(n) to store the resulting groups.
- The solution provides a PHP implementation for dividing a string based on the given requirements.
- Test cases are included to demonstrate the function's usage and expected outputs.
- The article also includes links to the GitHub repository and social media profiles for further engagement.
- The implementation efficiently handles partitioning strings into groups, allowing for padding when necessary.
- Overall, the article provides a clear explanation and code solution for the given task of dividing strings into specified groups with padding.
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