Given an integer n, return true if it is an Armstrong number, or false otherwise.
An integer n is an Armstrong number if the sum of each of its digits raised to the power of n, where n.
Constraints:
n
Given an integer n, return true if it is an Armstrong number, or false otherwise.
An integer n is an Armstrong number if the sum of each of its digits raised to the power of n, where n.
Constraints:
n