Jigsaw_Killer @ 2018-08-09 11:03:21
Alberta collegiate programming contest 2003考了几乎一模一样的题，poj 2528就是这题，稍微改了一点点。学线段树都做过这题，2014省选居然考这题
by Nero_Claudius @ 2018-08-09 11:09:35
so?
by hellomath @ 2018-08-09 11:16:07
正常现象
by LMB_001 @ 2018-08-09 11:21:07
我还记得某年noip考了一道usaco的题
by 哔哩哔哩 @ 2018-08-12 11:59:39
UVA10587 图都差不多