明白了..不过RE变成了TLE..
by DEVILK @ 2017-12-10 20:04:30
这道题要用单调队列，线段树会t
by cszmc2004 @ 2017-12-10 20:22:16
哦哦哦
by DEVILK @ 2017-12-26 21:42:32
实测开O2+线段树+快读能A（最慢点476ms）
by Gypsophila @ 2018-01-15 15:17:16