I'm getting different answers.. can u give a more clear explanation?
Convert a vector into a number
Fibonacci-Sum of Squares
How many rectangles in a grid ?
Hard limit function
The last non-zero digit of a factorial
Fractal: area and perimeter of Koch snowflake
Make a rainbow matrix (follow-up to checkerboard matrix)
The number of trailing zero digit of a factorial
Number of even divisors of a given number
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