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" 题目链接 " Problem Description As we know, Rikka is poor at math. Yuta is worrying about this situation, so he gives Rikka some math tasks to practice. 阅读全文
posted @ 2017-08-09 17:53
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" 题目链接 " Problem Description As we know, Rikka is poor at math. Yuta is worrying about this situation, so he gives Rikka some math tasks to practice. 阅读全文
posted @ 2017-08-09 11:50
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" 题目链接 " Problem Description As we know, Rikka is poor at math. Yuta is worrying about this situation, so he gives Rikka some math tasks to practice. 阅读全文
posted @ 2017-08-09 09:57
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