Narcissistic number is a number that is the sum of its own digits each raised to the power of the number of digits.
153 = 1^3 + 5^3 + 3^3
101 ~= 1^3 + 0 ^3 + 1^3
Add two numbers
Implement a ROT13 cipher
Tell me the slope
Create a square matrix of multiples
Volume of a Parallelepiped
Generate a vector like 1,2,2,3,3,3,4,4,4,4
Project Euler: Problem 14 Longest Collatz sequence(harder version)
Put m balls into n boxes
Find the right number make the equation
Return fibonacci sequence do not use loop and condition
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