63分求助!剩下的全wa了

P3366 【模板】最小生成树

并查集不是这么写的。。吧?
by Loic_ @ 2023-05-14 00:56:09


并查集写错了,常用模板是: ```cpp int find(int x){ if(fa[x]==x)return x; else return fa[x]=find(fa[x]); } ```
by HeCao2008 @ 2023-05-14 02:45:28


@[HeCao2008](/user/422996) 并查集没错,这是非递归的并查集写法
by ForgotDream_CHN @ 2023-05-14 07:31:37


jiangly 就是这么写的
by ForgotDream_CHN @ 2023-05-14 07:31:51


@[秋天的小溪123](/user/536809) 数组开小了
by ForgotDream_CHN @ 2023-05-14 07:32:32


还有,不连通的时候要特判
by ForgotDream_CHN @ 2023-05-14 07:33:55


@[ForgotDream_CHN](/user/750067) ???前一天晚上我脑子出问题了,确实没错,我也不知道我为什么认为这是错的![](//图.tk/8)
by HeCao2008 @ 2023-05-14 07:43:56


oh,谢谢
by 秋天的小溪123 @ 2023-05-14 12:17:27


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