A little warm-up to begin...
An n-digit number is pandigital if it makes use of all the digits 1 to n exactly ONCE.
For example, the 5-digit number 15234, is 1 through 5 pandigital.
Given a positive integer find whether it is a pandigital number.
Reverse Run-Length Encoder
Find state names that start with the letter N
Who knows the last digit of pi?
Return a list sorted by number of consecutive occurrences
Permute diagonal and antidiagonal
Numbers spiral diagonals (Part 1)
Pandigital number n°2 (Inspired by Project Euler 32)
Magic is simple (for beginners)
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