Contest Clarifications

Problem 1001 什么是五角星？是否是正五角星

testestest | 2015-11-14 19:01:59Author

rT

admin | 2015-11-14 19:02:44# 1

对

admin | 2015-11-14 19:04:27# 2

https://en.wikipedia.org/wiki/Pentagram