I'm getting different answers.. can u give a more clear explanation?
Are all the three given point in the same line?
Sum the entries of each column of a matrix which satisfy a logical condition.
intersection of matrices
Get all prime factors
Number of even divisors of a given number
Make a rainbow matrix (follow-up to checkerboard matrix)
The last non-zero digit of a factorial
Smallest n, for n! to have m trailing zero digits
Under the sea: Snell's law & total internal reflection
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