Leetcode Problem 408. Valid Word Abbreviation

408. Valid Word Abbreviation

Leetcode Solutions

Two Pointer Approach

  1. Initialize two pointers, i for word and j for abbr, starting at 0.
  2. Loop while i < len(word) and j < len(abbr).
  3. If abbr[j] is a letter: a. Check if word[i] matches abbr[j]. If not, return False. b. Increment both i and j.
  4. If abbr[j] is a digit: a. Check for leading zeros. If found, return False. b. Parse the complete number represented by consecutive digits. c. Increment i by the parsed number. d. Increment j to move past the digits.
  5. After the loop, check if both i and j have reached the end of their respective strings. If so, return True. Otherwise, return False.
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Recursive Approach

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