Narcissistic number is a number that is the sum of its own digits each raised to the power of the number of digits.
for example:
153 = 1^3 + 5^3 + 3^3
return true
101 ~= 1^3 + 0 ^3 + 1^3
return false
Given an unsigned integer x, find the largest y by rearranging the bits in x
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Switch matrix to a column vector
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