Can someone help me understand the solution for E.Relay Race?

Правка en1, от M.A.H.M.O.O.D, 2018-12-02 17:58:58

Hello everyone.

I was trying to solve this problem and I couldn't, so I tried looking at the tutorial and I didn't understand it.

Can someone explain the solution for me please? Just the general idea not the implementation. Thanks!

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en1 Английский M.A.H.M.O.O.D 2018-12-02 17:58:58 350 Initial revision (published)