given a matrix, just find the mean of all elements in the matrix
easy problem just try
Project Euler: Problem 7, Nth prime
Back to basics 6 - Column Vector
Switch matrix to a column vector
find the surface area of a cube
Summation of array
Find remainder when x is divided by 3
Determine whether the input is divisible by 3 as well as 5
Calculating selling price
modulus of a number
multiply an array by its position number
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