Prbolem on Codeforces Round #78: Problem Div2-C

Revision en1, by question_id, 2015-08-31 19:33:30

Here I'm facing a lot of problem solving this not getting any tutorial. I'm also can't understand the problem clearly. Can anyone help me on this? http://codeforces.me/problemset/problem/98/A

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en1 English question_id 2015-08-31 19:33:30 240 Initial revision (published)