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The Levenshtein distance is the minimum number of single character edits that are needed to transform one word into another. The available edits are deletion, insertion, or substitution of a single character.

For example the Levenshtein distance between “shine” and “train” is 4:

  1. shine → shin (deletion of 'e')
  2. shin → tshin (insertion of 't')
  3. tshin → trhin (substitution of 's' for 'r')
  4. trhin → train (substitution of 'h' for 'a')

For each pair of words per argument, print the Levenshtein distance on its own line.

0 characters
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