First test case is invalid. Please fix it.
I have fixed it.
and the fourth...
It must be OK now!
Getting the indices from a vector
Given a window, how many subsets of a vector sum positive
Get the elements of diagonal and antidiagonal for any m-by-n matrix
Challenging perms function!
Produce the following matrix
Bridge and Torch Problem - Probability
Divide elements by sum of elements
Duration of a trip in minutes
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