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
First non-zero element in each column
Matrix with different incremental runs
Back to basics 19 - character types
CONVERT TAN TO SIN
Compare two input matrices
Determine if input is a perfect number
Put m balls into n boxes (again)
Find the regional maximum value
Repeat copies of array elements
Big Integer Sqrt
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