~~先说一句，您的用户名很危险~~
by NKL丶 @ 2019-04-18 22:16:41
@[NKL丶炎](/space/show?uid=112661) 我懂
还有您能解答吗
by 洛谷OnlineJudge_J @ 2019-04-18 22:18:50
@[洛谷OnlineJudge_J](/space/show?uid=105101) dfs，标记，回溯
by NKL丶 @ 2019-04-18 22:27:45
~~第二问可以dp吗~~
by smarthehe @ 2019-04-18 22:52:19
@[洛谷OnlineJudge_J](/space/show?uid=105101)
>希望更丰富的展现？使用Markdown
by willbe233 @ 2019-04-18 23:13:26
话说没有数据范围吗
~~怎么打表~~
by willbe233 @ 2019-04-18 23:14:26