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「CF843D」Dynamic Shortest Path | Okazaki Yumemi's blog #87

Open OkazakiYumemi opened 4 years ago

OkazakiYumemi commented 4 years ago

https://okazakiyumemi.github.io/blog/CF843D/

题意简述[CF 843D] 给定 $n$ 个点 $m$ 条边的有向图,边带权。$q$ 个操作,可能是求目前 $1$ 到 $u$ 的最短路或是将 $c$ 条边的权加 $1$。 $n, m\le 10^5, q\le 2000, \sum c\le 10^6$。