giles b4571f0f9f ocaml: phase 5.1 lev_iter.ml baseline (sum of 5 edit distances = 16) ...

Iterative Levenshtein DP with rolling 1D arrays for O(min(m,n))
space. Distances:

  kitten    -> sitting    : 3
  saturday  -> sunday     : 3
  abc       -> abc        : 0
  ""        -> abcde      : 5
  intention -> execution  : 5
  ----------------------------
  total                   : 16

Complementary to the existing levenshtein.ml which uses the
exponential recursive form (only sums tiny strings); this one is
the practical iterative variant used for real ED.

Tests the recently-fixed <- with bare `if` rhs:

  curr.(j) <- (if m1 < c then m1 else c) + 1

153 baseline programs total.

2026-05-10 06:53:38 +00:00

3.4 KiB

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