Please return the smallest positive number.
This is a little silly problem, but the solution has some funny properties...
Find perfect placement of non-rotating dominoes (easier)
Reindex a vector
The Dark Side of the Die
Given a 4x4 matrix, swap the two middle columns
find the maximum element of the matrix
Calculate the Damerau-Levenshtein distance between two strings.
Alternative Scoring. Create an incremental spiral.
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