The problem description and test suite have been improved.
Reverse Run-Length Encoder
Replace NaNs with the number that appears to its left in the row.
Check if number exists in vector
What is Sum Of all elements of Matrix
Volume of a box
Count given word x in text.
Find the sines of an isosceles triangle when given its area and height
Delete x value in given vector y.
Find product of eigenvalues of n*n magic matrix.
For given xx,x, y vectors build spline of x and y and find yy values for xx vector.
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