At a minimum, you should make this problem variable. For example, find the element at the ith row and jth column and define i and j in the test cases, which are passed along with the function.
Given a window, how many subsets of a vector sum positive
Make a 1 hot vector
Create a vector
find the mean of all elements in a matrix
multiply an array by its position number
Find the last digit
modulus of a number
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