Distance walked 1D
2 b | ~ 2 b
Check if number exists in vector
Deleting an element in a matrix
Create sequnce 1 4 9 16 25.........
Convert a number to its Roman representation
Create the following sequence : 0 1 1 4 9 25 64 169 ...
Find the dimensions of a matrix
Find the square of the sum of the digits of a number
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