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Problem Description People in Silverland use square coins. Not only they have square shapes but also their values are square numbers. Coins with value 阅读全文
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https://blog.csdn.net/bjrxyz/article/details/8123821 阅读全文
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暴力解 母函数解 https://blog.csdn.net/valieli/article/details/53049939 阅读全文