A Lannister always pays his debt!

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When Eddard Stark became Hand of the King to Robert Baratheon, he was shocked to learn from Master of Coin Petyr Baelish that the Iron Throne owed House Lannister an astonishing amount of Gold Dragons in debt. Ser Eddard Stark asked Lord Petyr Baelish to somehow make profit to the Iron Throne. The coinage system in the Seven Kingdoms is a bit unusual. Each coin of Gold Dragon has a integer number

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solution.cppC++17

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