有人么QAQ 小蒟蒻调了0.5h+还是调不出来
by iodwad @ 2018-01-07 23:32:54
dalao orz
学完线段树立刻杠树剖%%%
by lrj124 @ 2018-01-07 23:37:04
@[lrj124](/space/show?uid=17521) 太强了。。。您小学就会了
by iodwad @ 2018-01-07 23:39:42
已经解决 此贴终结
by iodwad @ 2018-01-08 01:45:06