Leetcode Problem 320. Generalized Abbreviation

320. Generalized Abbreviation

Leetcode Solutions

Backtracking Approach for Generalized Abbreviations

  1. Define a helper function backtrack that takes the current position in the word, the current state of the abbreviation, and the result list.
  2. If the current position is at the end of the word, add the current abbreviation to the result list.
  3. For each position in the word, decide to either:
    • Keep the current character as is and call backtrack for the next position.
    • Replace a sequence of characters starting at the current position with their count, and call backtrack for the position after the abbreviated sequence.
  4. Ensure that the helper function maintains the state of the abbreviation correctly, particularly when switching from characters to counts and vice versa.
  5. Call the backtrack function with an initial position of 0, an empty current abbreviation, and an empty result list.
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Bit Manipulation Approach for Generalized Abbreviations

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