Find all values in a vector lower than the mean of the vector
I suggest adding additional test cases to make the problem stronger.
Back to basics 15 - Benchmark
Number of 1s in a binary string
Given a window, how many subsets of a vector sum positive
Reverse the elements of an array
Celsius to Kelvin
Replace 0 indices in array with 1's
Sum two matrices
Check if inputted variable is a string or a number
Simple String Concatenation
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