Permute diagonal and antidiagonal
For example [1 2 3;4 5 6;7 8 9] -> [3 2 1;4 5 6;9 8 7]
WITHOUT diag function (and variable name)
"max(...)" is clever!
Replace NaNs with the number that appears to its left in the row.
Back to basics 19 - character types
What is the distance from point P(x,y) to the line Ax + By + C = 0?
Mirror, mirror on the wall, who is fairest of them all?
Find my secret number
Expression or variable?
Return a list sorted by number of consecutive occurrences
Narcissistic number ?
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