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B. Robin Hood 题目连接： http://www.codeforces.com/contest/671/problem/B Description We all know the impressive story of Robin Hood. Robin Hood uses his ar 阅读全文
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A. Recycling Bottles 题目连接： http://www.codeforces.com/contest/671/problem/A Description It was recycling day in Kekoland. To celebrate it Adil and Bera 阅读全文
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B. Different is Good 题目连接： http://www.codeforces.com/contest/672/problem/B Description A wise man told Kerem "Different is good" once, so Kerem wants 阅读全文
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A. Summer Camp 题目连接： http://www.codeforces.com/contest/672/problem/A Description Every year, hundreds of people come to summer camps, they learn new a 阅读全文