x - 2y + 3z = a
2x + y + z = 4
-3x + 2y - 2z = -10
Additional test cases were added along with an improved solution-checking assertion.
Solve the Sudoku Row
Return unique values without sorting
Number of Horns on a unicorn!
convert matrix to single column
Check if a string starts with another string
Find the product of the positive elements above the main diagonal.
Find the sum of the negative elements under the main diagonal.
Create cotangent function out of sine.
Find Adjacency Matrix
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