easy problem just try
Right and wrong
Matrix indexing with two vectors of indices
sum of non-primes
select the primes of a vector
Write a code that will follow the equation y = x * (x + x) * x.
find a specific element from an matrix
Determine whether the input is divisible by 3 as well as 5
modulus of a number
first element of matrix
multiply an array by its position number
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