Problem of the day? I've been working on understanding the solution (usaco.org/current/data/sol_cow) to a large question (usaco.org/index.php?page=viewp) for the last hour or so, and I'm completely stuck at this point.

Might be fun for someone else to try out.

Question:
mathb.in/31958

njha boosted
@freemo Ah gotcha you mean physical signatures.

I thought you meant digital signatures.
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