The title and description of this problem have been cleaned up. Also, its test suite has been expanded and improved.
Back and Forth Rows
Solve the Sudoku Row
Sum of series III
Sum of series VII
Matrix of almost all zeros, except for main diagonal
Multiply two polynomials p and q given in in vector representation.
Select primes from the matrix.
Sum positive elements of matrix.
Display positive elements of matrix.
Compare two strings.
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