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@zym417 2020-02-25 08:46 回复

设 [a] 表示 a 下取整后的结果。

给定一个正整数 n ,求满足以下条件的正整数对 (x,y) 个数:

x,y<=n

[n/x]=[n/y]

请求各位大佬援助

@YUYGFGG 2020-02-25 08:48 回复 举报

$\small\texttt{本}\huge\texttt{人}_{\small\texttt{的}^{\large\texttt{萌新}\small\texttt{QAQ}}}^{\large\texttt{是}{\small\texttt{刚学}\large\texttt{OI}}}\huge\texttt{但是}^{\large\texttt{即}{\small\texttt{使}}}_{\normalsize\text{是这样}}\texttt{我也}^{\small\texttt{要}\normalsize\texttt{用}\texttt{蒟}_{\texttt{蒻}\large\texttt{的}}}_{\scriptsize\texttt{声音大声喊出}}\texttt{我谔谔}$

@Aw顿顿  2020-02-25 09:01 回复 举报

$\small\texttt{本}\huge\texttt{人}_{\small\texttt{的}^{\large\texttt{萌新}\small\texttt{QAQ}}}^{\large\texttt{是}{\small\texttt{刚学}\large\texttt{OI}}}\huge\texttt{但是}^{\large\texttt{即}{\small\texttt{使}}}_{\normalsize\text{是这样}}\texttt{我也}^{\small\texttt{要}\normalsize\texttt{用}\texttt{蒟}_{\texttt{蒻}\large\texttt{的}}}_{\scriptsize\texttt{声音大声喊出}}\texttt{我谔谔}$

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