【2019 Multi-University Training Contest 9 1006/ HDU 6685】Rikka with Coin
原题传送门Problem DescriptionRikka hates coins, and she used to never carry any coins with her. These days, Rikka is doing her summer internship abroad. Without mobile payment, Rikka has to face strange...
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2019-08-19 21:32:01 ·
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