Contest Clarifications

Problem 1001 0 1 1 1这样的算么

Tes_peach | 2016-04-02 19:05:56Author

rt

admin | 2016-04-02 19:10:30# 1

符合数据范围

Tes_peach | 2016-04-02 19:15:39# 2

THK

Tes_peach | 2016-04-02 19:19:08# 3

他不算四边形吧。。。

xx315 | 2016-04-02 19:22:50# 4

谢谢

mcm_acm | 2016-04-02 19:31:32# 5

来不及解释了，出题人快给我一根长度为0的木棍！！！