有这种情况吗!!!!

P1268 树的重量

@[url=/space/show?uid=7538]陈晓杰[/url] @[url=/space/show?uid=4998]yyqs[/url] @[url=/space/show?uid=1492]HansBug[/url] @[url=/space/show?uid=8692]fffff[/url] @[url=/space/show?uid=5408]2571476073qq[/url] @TsReaper
by sxb_201 @ 2015-08-19 11:10:43


@[url=/space/show?uid=4341]TsReaper[/url] @[url=/space/show?uid=2573]a710128[/url] @[url=/space/show?uid=184]shutdown[/url] @yeguanghao
by sxb_201 @ 2015-08-19 11:14:09


不存在,因为输入数据保证合法。
by TsReaper @ 2015-08-19 14:36:31


@[url=/space/show?uid=4341]TsReaper[/url] 这个不合法??? 为什么
by sxb_201 @ 2015-08-19 14:46:25


11?
by chaijing @ 2016-11-09 17:54:30


貌似不合法...
by chaijing @ 2016-11-09 17:55:46


貌似合法啊 @[chaijing](/space/show?uid=13473)
by 小强 @ 2017-08-30 15:07:42


答案可以这样: ![Luogu](pic=7638)
by 小强 @ 2017-08-30 15:19:37


![](https://cdn.luogu.com.cn/upload/pic/7638.png)
by 小强 @ 2017-08-30 15:21:38


@[小强](/space/show?uid=19912) 边权均为非负整数
by 老K @ 2017-08-30 20:43:19


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