n different symbols but m symbols are identical ?!?!? What the hell
The description isn't clear.
Could you at least add a non-trivial example?
Replace NaNs with the number that appears to its left in the row.
Back to basics 23 - Triangular matrix
Choose the best fitting dominoes
Doubling elements in a vector
Basic arrays operations.
Find number of days
Replace Vector Elements
Given a number find two variables
Are all the three given point in the same line?
Find nearest prime number less than input number
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