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题目链接:http://codeforces.com/problemset/problem/669/D Little Artem is fond of dancing. Most of all dances Artem likes rueda — Cuban dance that is danced 阅读全文
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题目链接:http://codeforces.com/problemset/problem/631/C Each month Blake gets the report containing main economic indicators of the company "Blake Technol 阅读全文
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题目链接:https://www.spoj.com/problems/AMR11A/en/ Thanks a lot for helping Harry Potter in finding the Sorcerer's Stone of Immortality in October. Did we 阅读全文