Watches

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Draco has 'N' empty watches whose batteries have been used up. Draco has 'R' rupees in his pocket. Draco has two choices of operations that Draco can perform each time. 1) Recycle 1 empty watch and get 'K' rupees as a reward. 2) Buy 1 battery for 'C' rupees and combine it with 1 empty watch to make one usable watch. Draco is busy finding spells to win a game against Harry. So he has assigned this

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solution.cppC++17

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