The Test Suite only accepts one ordering of the two x values, but the ordering is not explained. See e.g. Solution 1574317. Either the Test Suite or the Problem Statement needs to be amended. Also, it is recommended that at least four test cases be provided, though more are often necessary to prevent hard-coded workarounds. —DIV
Sorry, I suppose the "hint" does suggest that descending order is wanted. However it would still have been beneficial to state it explicitly. —DIV
Swap the first and last columns
Return unique values without sorting
Reverse a matrix
Decide whether determinant is zero.
Print true if
Find cosine between two given vectors u and v.
Select primes from the matrix.
For given vectors x,y find coresponding spline coefficients.
Pointwise multiplication of vectors.
Calculate the values of a polynomial.
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