NEED HELP in a USACO Problem

Revision en1, by introart, 2022-10-02 08:22:09

Can anyone please give me some idea about this USACO problem? DELIVER — Delivery Route

Here is the editorial of the problem but I could not understand why 5N nodes are required.

Tags usaco, dijkstra, spoj, graphs

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en1 English introart 2022-10-02 08:22:09 320 Initial revision (published)