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Just record some about LaTeX! $\pi$ $\infty$ $\frac{a}{b}$ $\tfrac{a}{b}$ $\sqrt{a}$ $\sum_{a}^{b}$ $\prod\limits_{i = 0}^{n}$ $\int_{a}^{b}$ $_{a}^{b 阅读全文
posted @ 2016-10-09 20:51
Thecoollight
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2015 asia xian regional F Color (容斥 + 组合数学) 题目链接 "http://codeforces.com/gym/100548/attachments" Description Recently, Mr. Bigrecieved n flowers from h 阅读全文
posted @ 2016-10-09 20:48
Thecoollight
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