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I think this problem is poorly worded. It should say that as a group you have to buy one flower of each type. As stated, it could mean you simply want to buy N flowers; in this interpretation, you would only ever buy the cheapest type of flower. The example shows that it is the other interpretation that is correct, but the problem statement is ambiguous.
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Greedy Florist
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I think this problem is poorly worded. It should say that as a group you have to buy one flower of each type. As stated, it could mean you simply want to buy N flowers; in this interpretation, you would only ever buy the cheapest type of flower. The example shows that it is the other interpretation that is correct, but the problem statement is ambiguous.