[我的 SPFA 悲惨提交记录](https://www.luogu.com.cn/record/153515007)
by jqQt0220 @ 2024-04-13 17:39:56
带容错 slf spfa：<https://www.luogu.com.cn/record/155688885>
定期重构 dfs spfa：<https://www.luogu.com.cn/record/155688867>
by Argvchs @ 2024-04-13 17:42:15