I think that with this kind of problem, you can process in two steps.
A first easy problem with small N (to test perms for example). And a harder problem with big N, which
oblige to find another algorithm.
Find the numeric mean of the prime numbers in a matrix.
Back to basics 15 - Benchmark
Duplicate each element of a vector.
Return 'on' or 'off'
Number of digits in an integer
I'm going to enjoy watching you calculate, Mr Anderson
Highest powers in factorials
I've got the power! (Inspired by Project Euler problem 29)
Lowest sum from a group of digits
Pandigital Factors (Based on Euler 491)
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