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The edit distance (also: Levenshtein distance) between two strings measures the number of insertions and deletions it takes to convert one string to another.

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Complexity of Block edit distance with Swapping only

When one operation is exactly "removing a block and inserting it between two other positions", the problem of computing the string distance is known as Transposition Distance. It is NP-hard even if bo …
Christian Komusiewicz's user avatar