Thinking-Bear magic(正n边形面积)
链接:https://www.nowcoder.com/acm/contest/163/D
来源:牛客网
题目描述
In order to become a magical girl, Thinking-Bear are learning magic circle.
He first drew a regular polygon of N sides, and the length of ...
原创
2018-08-05 20:07:22 ·
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