不以前都是绿的吗？
by Inkyo @ 2019-11-09 16:57:00
也就 NOIP2018 结束的时候是蓝的吧
by Meatherm @ 2019-11-09 16:57:21
~~致远星~~
by Plus_Ultra @ 2019-11-09 16:58:05
黄的吧
by tiger0133 @ 2019-11-09 16:59:38
其实这题应该是黄的，但是由于它是T4把某些人吓住了
by yummy @ 2019-11-09 17:00:08
我认为是一道搜索板子题
by wmy_goes_to_thu @ 2019-11-09 17:05:21
zyx
by H6_6Q @ 2019-11-09 17:08:12
天翼3G太快了！
by Smile_Cindy @ 2019-11-13 07:56:17
真的是黄题，变绿是因为T3挡住了T4。。。
by 雄鹰展翅 @ 2019-11-14 23:00:56