could you please break down this problem's testsuite (using "%%" double-comments) to make it a bit easier for players to spot issues in their code? thanks (and very nice problems btw!)
Encode Roman Numerals
Tune your guitar
Multiply a column by a row
Given a matrix, return the last eigen value
Sherlock Holmes: The Spy Problem
Nodal Voltage of Resistor Ladder Network
Let's Make A Deal: The Player's Dilemma 2
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