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.
Test for balanced parentheses
Television Screen Dimensions
Number of digits in an integer
The sum of the numbers in the vector
Magic is simple (for beginners)
Chess ELO rating system
Divisors for big integer
Generalised Hamming Number
Replicate elements in vectors
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