Shark help

Revision en1, by bhikkhu, 2018-06-05 17:29:25

http://codeforces.net/contest/982/problem/D

I don't get why we need to add +1 to a[i]. I understand that we need to add if n = 1. But why do we need to do so in other cases?

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en1 English bhikkhu 2018-06-05 17:29:25 188 Initial revision (published)