What is this digit operation?
0 -> 0
1 -> 9
121 -> 9
44 -> 6
15 -> 5
1243 -> 7
Replace NaNs with the number that appears to its left in the row.
Distance walked 1D
Column norms of a matrix
Reverse the elements of an array
How many jokers?
Sum of big primes without primes
Pandigital number n°1 (Inspired by Project Euler 32)
BLOCK x3 (Version 1)
Two functions (to be sure)
Longest Collatz Sequence
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