giles bd2cd8aad1 ocaml: phase 5.1 levenshtein.ml baseline (no-memo edit distance, sum=11) ...

Recursive Levenshtein edit distance with no memoization (the test
strings are short enough for the exponential-without-memo version to
fit in <2 minutes on contended hosts). Sums distances for five short
pairs:

  ('abc','abx') + ('ab','ba') + ('abc','axyc') + ('','abcd') + ('ab','')
   = 1 + 2 + 2 + 4 + 2 = 11

Exercises:
  * curried four-arg recursion
  * s.[i] equality test (char comparison)
  * min nested twice for the three-way recurrence
  * mixed empty-string base cases

2026-05-09 00:23:58 +00:00

400 B

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