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📝 Beginner-Friendly Guide "Minimum Deletions to Make String K-Special" LeetCode 3085 (C++ | Python | JavaScript)

  • LeetCode 3085 is a medium-level problem that involves minimizing the number of deletions required to make a given string k-special.
  • To make a string k-special, the difference between the maximum and minimum frequency of any two letters should be ≤ k.
  • The problem involves counting the frequency of each character, normalizing frequencies, adjusting values greedily, and finding the configuration with minimal deletions.
  • In C++, a solution is provided that sorts frequencies for easier analysis and scans for minimum deletions with a time complexity of O(26^2) and space complexity of O(26).
  • The JavaScript solution follows a similar approach as the C++ solution but is implemented in JavaScript, sorting frequencies and calculating minimum deletions.
  • A Python solution is also presented, using frequency arrays and greedy optimization to find the minimum deletions required to make the string k-special.
  • This problem showcases the benefits of frequency analysis and greedy optimizations, transforming a global condition into local transformations via range loops.
  • The problem provides good practice for frequency array manipulation and greedy analysis on sorted data.
  • This article offers algorithm insights and optimizations for the LeetCode 3085 problem, highlighting the importance of frequency analysis and local transformations.
  • The content provides valuable information for algorithm enthusiasts and demonstrates the power of frequency-based optimizations.

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