@[Msaikoto](/space/show?uid=100331) RE是因为边数组开的不够大，要开范围的两倍
by feecle6418 @ 2018-11-06 10:34:35
@[Fee_cle6418](/space/show?uid=42156)
但是题目的范围给的就是 M<200000 , N<5000 ;
by Msaikoto @ 2018-11-06 12:21:17
数组开小了，前向星双向存边相当于存两条边，所以要开范围的两倍
by jkrj02 @ 2018-11-07 20:17:36
@[jkrj02](/space/show?uid=45436) 开了四倍也炸了 re 3个点 wa 3个点o(︶︿︶)o唉
by Msaikoto @ 2018-11-07 21:46:37