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.
Spot the outlier
Say something funny
Area of a Square
Decrypt the cypher using XOR encryption (for beginners)
Pandigital number n°3 (Inspired by Project Euler 32)
Find files with extension ext in the current directory
Generalised Hamming Number
Find the path through the cell
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