Topcoder SRM 615 Div1 Medium

Revision en1, by hereicomewf, 2015-08-28 17:26:06

What is the proof of Editorial Solution of this problem? http://community.topcoder.com/stat?c=problem_statement&pm=13090&rd=15848

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en1 English hereicomewf 2015-08-28 17:26:06 158 Initial revision (published)