Convert the input to a cell array, but only if necessary.
If the input is a string, return a 1-by-1 cell array containing the string. If the input is a cell array of strings, return the input unaltered.
Encode Roman Numerals
Find the "ordinary" or Euclidean distance between A and Z
Multiply a column by a row
Implement simple rotation cypher
Change a specific color in an image
Cumulative maximum of an array
Create cell array of numeric arrays
Connect Four: find winning move
How many figures currently exist?
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